Best Floorstanding Speakers 2026: 74 Ranked

This page ranks 74 large floorstanding speakers with woofers above 5.75”. These speakers deliver the deepest bass response available, ideal for serious music lovers and home theater enthusiasts.

Rankings are based on flat frequency response, directivity, dynamics, imaging, and detail retrieval. While the top-ranked speakers offer exceptional performance, the law of diminishing returns applies,many moderately-priced options provide outstanding value.

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1	Compare GR-Research NX-Treme	GR-Research NX-Treme	$9662 per pair	94.5dB	8 ohms	<20Hz	(35.3 lbs
2	Compare KEF Blade Two Meta	KEF Blade Two Meta	$28,000 per pair	86.8dB	4 ohms nominal	31Hz	79.4 lbs
3	Compare MoFi SourcePoint V10 Master Edition	MoFi SourcePoint V10 Master Edition	$7995 per pair	88.8dB	6 ohms nominal, 5.3 o…	38Hz	160.9 lbs
4	Compare MoFi SourcePoint 888	MoFi SourcePoint 888	$5495 per pair	85.6dB	6 ohms nominal, 5 ohm…	34Hz	94.8 lbs
5	Compare Revel F328Be	Revel F328Be	$19,359.90 per pair	91dB	8 ohms nominal	74Hz	112.4 lbs
6	Compare Radiant Acoustics Clarity 66	Radiant Acoustics Clarity 66	$7,998 per pair	85.9dB	4 ohms nominal	32.2Hz	101.4 lbs
7	Compare Ascend Acoustics ELX Ribbon Tower	Ascend Acoustics ELX Ribbon Tower	$5,698 per pair	87.5dB @ 2.83V/1m ane…	8 ohms nominal	38.7Hz	56 lbs
8	Compare Magico S5 2024	Magico S5 2024	$82,000 per pair	88dB	4 ohms nominal	37Hz	260.1 lbs
9	Compare KEF R5 Meta	KEF R5 Meta	$3,999.99 per pair	86dB	4 ohms nominal	52Hz	54 lbs
10	Compare Revel F226Be	Revel F226Be	$7700 per pair	89.7dB	8 ohms nominal	56Hz	58.2 lbs
11	Compare JBL 4367	JBL 4367	$16,500 per pair	92.5dB	4 ohms nominal	43Hz	119 lbs
12	Compare KEF Reference 203	KEF Reference 203	$5,000 per pair	88dB	8 ohms nominal	51Hz	58 lbs
13	Compare KEF Reference 3 Meta	KEF Reference 3 Meta	$15,999.98 per pair	86dB	4 ohms nominal, 3.2 o…	42.2Hz	-
14	Compare JBL HDI-3800	JBL HDI-3800	$5,000 per pair	92dB	4 ohms nominal	37Hz	83.8 lbs
15	Compare Focal Chora 816	Focal Chora 816	$900 per pair	91dB	8 ohms nominal	60Hz	40.8 lbs
16	Compare Revel F208	Revel F208	$4,800 per pair	88.2dB	8 ohms nominal, 3.5 o…	47Hz	79.4 lbs
17	Compare Revel F228Be	Revel F228Be	$9,000 per pair	89.3dB	8 ohms	61Hz	112.4 lbs
18	Compare Revel F206	Revel F206	$2,000 per pair	87dB	4 ohms nominal	60Hz	57.3 lbs
19	Compare Revel Concerta2 F35	Revel Concerta2 F35	$900 per pair	89.4dB	6 ohms nominal	70Hz	41 lbs
20	Compare Perlisten S7t	Perlisten S7t	$21,990 per pair	92.2dB @ 2.83V/1m	4 ohms nominal, 3.2 o…	56.4Hz	122.8 lbs
21	Compare Perlisten R5t	Perlisten R5t	$8,790 per pair	89.0dB @ 2.83V/1m	4 ohms nominal, 3.2 o…	44.6Hz	58.4 lbs
22	Compare KEF R5	KEF R5	$2,999 per pair	Approximately 86dB/2.…	Approximately 3.5 ohm…	77Hz	59.5 lbs
23	Compare Arendal Sound 1610 Tower 8	Arendal Sound 1610 Tower 8	$7,600 per pair	89.5dB @ 2.83V/1m	4 ohms nominal	41Hz	100 lbs
24	Compare TAD Evolution 2	TAD Evolution 2	$19,995 per pair	87dB @ 2.83V/1m	6 ohms nominal, 4.5 o…	58.6Hz	70.5 lbs
25	Compare Ascend Acoustics Sierra Titan Tower	Ascend Acoustics Sierra Titan Tower	$2,998 per pair	88dB @ 2.83V/1m in-ro…	8 ohms nominal	58.6Hz	45 lbs
26	Compare KEF R11 Meta	KEF R11 Meta	$6,999.98 per pair	89.5dB	4 ohms	64Hz	80.5 lbs
27	Compare Arendal 1961 Tower	Arendal 1961 Tower	$1,900 per pair	86.5dB/2.83V/1m	4 ohms nominal; dips…	62Hz	39.5 lbs
28	Compare Morel Avyra 633	Morel Avyra 633	$2,000 per pair	86.5dB	4 ohms nominal	50Hz	48.5 lbs
29	Compare Magico A5	Magico A5	$24,800 per pair	88dB	4 ohms nominal	49.5Hz	179.9 lbs
30	Compare JBL Studio 698	JBL Studio 698	$1,499.90 per pair	90dB	6 ohms nominal	53Hz	78.9 lbs
31	Compare JBL HDI-3600	JBL HDI-3600	$3800 per pair	89.5dB	4 ohms nominal	78Hz - the on-axis cu…	61.7 lbs
32	Compare Perlisten R7t	Perlisten R7t	$9,990 per pair	90.0dB @ 2.83V/1m	4 ohms nominal, 3.1 o…	49.1Hz	105.8 lbs
33	Compare Polk Audio Reserve R700	Polk Audio Reserve R700	$2,398 per pair	87.5dB	4 ohms nominal, 3.5 o…	40Hz	102.1 lbs
34	Compare PSB Imagine T65	PSB Imagine T65	$2,699 per pair	85.1dB	8 ohms nominal	47Hz	44.1 lbs
35	Compare Emotiva Airmotiv T2+	Emotiva Airmotiv T2+	$999 per pair	Approximately 89.5dB/…	Approximately 3 ohms…	62Hz	56.9 lbs
36	Compare ELAC Debut 3.0 DF63	ELAC Debut 3.0 DF63	$1,298 per pair	86.6dB	6 ohms nominal	71Hz	58.2 lbs
37	Compare Polk Reserve R500	Polk Reserve R500	$1,259.98 per pair	86.2dB	4.1 ohms minimum abov…	51Hz	39.2 lbs
38	Compare Linkwitz Lab LXmini	Linkwitz Lab LXmini	$505.00 per pair	85dB upper driver / 8…	4 ohms upper driver /…	50Hz	-
39	Compare PS Audio Aspen FR10	PS Audio Aspen FR10	$12000 per pair	84.4dB	4 ohms nominal, 3.6 o…	47Hz	119 lbs
40	Compare Infinity Primus 360	Infinity Primus 360	$650 per pair	89.4dB	8 ohms nominal, 3.5 o…	53Hz	48.5 lbs
41	Compare Q Acoustics 5040	Q Acoustics 5040	$2,472.98 per pair	91.5dB	6 ohms nominal	70Hz	39.7 lbs
42	Compare Klipsch Forte IV	Klipsch Forte IV	$5,499.98 per pair	93.8dB	8 ohms	82Hz	117.3 lbs
43	Compare Revival Audio Atalante 5	Revival Audio Atalante 5	$5000 per pair	88.6dB	4 ohms nominal	42Hz	72.8 lbs
44	Compare KEF Q11 Meta	KEF Q11 Meta	$2,499.98 per pair	88.6dB	4 ohms nominal	60Hz	106.9 lbs
45	Compare KLH Model Five	KLH Model Five	$2,998.00 per pair	About 85dB @ 2.83V/1m	6 ohms nominal, 3.5 o…	52Hz	44.1 lbs
46	Compare Klipsch RP-5000F II	Klipsch RP-5000F II	$1,199.98 per pair	90dB	8 ohms nominal, 3.3 o…	55Hz	38.6 lbs
47	Compare Monolith Encore T6	Monolith Encore T6	$800 per pair	87.8dB/2.83V/1m	4 ohms nominal	~68Hz	49.2 lbs
48	Compare Monolith THX-365T	Monolith THX-365T	$900 per pair	88.6dB/2.83V/1m	4 ohms nominal; nearl…	84Hz	28.4 lbs
49	Compare Klipsch RP-8000F II	Klipsch RP-8000F II	$1,159.98 per pair	92dB	8 ohms nominal	67Hz	61.3 lbs
50	Compare Dynaudio Emit 30	Dynaudio Emit 30	$1,274.25 per pair	87dB	4 ohms	44Hz	34.2 lbs
51	Compare Klipsch RP-6000F II	Klipsch RP-6000F II	$1500 per pair	90dB	8 ohms nominal	67Hz	49.4 lbs
52	Compare Definitive Technology BP-9020	Definitive Technology BP-9020	$500 per pair	87.7dB	8 ohms nominal	35Hz	30 lbs
53	Compare SVS Ultra Evolution Pinnacle	SVS Ultra Evolution Pinnacle	$2,499.00 per pair	88dB	6 ohms nominal	41.0Hz	96.8 lbs
54	Compare Polk T50	Polk T50	$498 per pair	86.3dB	4 ohms nominal	47Hz	75.4 lbs
55	Compare Vandersteen Treo CT	Vandersteen Treo CT	$11,090 per pair	85dB	6 ohms nominal, 4 ohm…	43.9Hz	80 lbs
56	Compare Aperion Audio Novus N5T	Aperion Audio Novus N5T	$1,048.50 per pair	86dB measured	4 ohms nominal	51.3Hz	37 lbs
57	Compare Focal Aria Evo X N°2	Focal Aria Evo X N°2	$4,798 per pair	88.2dB	8 ohms nominal	50Hz	55.1 lbs
58	Compare Polk Audio XT70	Polk Audio XT70	$698 per pair	89dB @ 1W/1m	4/8 ohm compatible	43.9Hz	35.1 lbs
59	Compare Polk Audio XT60	Polk Audio XT60	$458 per pair	86dB	4/8-ohm compatible	43.9Hz	20 lbs
60	Compare Infinity Reference 253	Infinity Reference 253	$400 per pair	86.9dB	6 ohms	78Hz	39.2 lbs
61	Compare Magnepan LRS+	Magnepan LRS+	$1300 per pair	85.1dB	4 ohms nominal, 3 ohm…	74Hz	30 lbs
62	Compare Polk Signature Elite ES60	Polk Signature Elite ES60	$599 per pair	90dB specified; 89.5d…	8 ohms compatible	51.3Hz	52 lbs
63	Compare JBL Stage 2 280F	JBL Stage 2 280F	$1,319.90 per pair	89.5dB	6 ohms nominal, 3.9 o…	48Hz	55.1 lbs
64	Compare Dali Rubikore 6	Dali Rubikore 6	$8000 per pair	86.4dB	4 ohms nominal	43Hz	114.9 lbs
65	Compare Atlantic Technology 8600eLR	Atlantic Technology 8600eLR	$5,700 per pair	91dB	6 ohms	68.8Hz	93.3 lbs
66	Compare Endow Audio Bravura 7	Endow Audio Bravura 7	$14,000 per pair	81-82dB	4 ohms nominal, 3.1 o…	50Hz	24.3 lbs
67	Compare Børresen X3	Børresen X3	$11,000 per pair	88dB	4 ohms	50Hz	121.3 lbs
68	Compare Sony SS-CS3	Sony SS-CS3	$450 per pair	88.6dB	6 ohms nominal	72Hz	25.4 lbs
69	Compare JBL Studio 590	JBL Studio 590	$2,000 per pair	90.3dB	6 ohms nominal	48Hz	107.8 lbs
70	Compare Jamo S807	Jamo S807	$299.00 per pair	84dB	8 ohms nominal	51.9Hz	26 lbs
71	Compare Triangle Esprit Antal Ez	Triangle Esprit Antal Ez	$1,799 per pair	90.7dB	8 ohms nominal	85Hz	98.5 lbs
72	Compare Klipsch Heresy IV	Klipsch Heresy IV	$3,198 per pair	94.5dB/2.83V/1m	Approximately 4 ohms…	77Hz	45 lbs
73	Compare Rockville RockTower 68B	Rockville RockTower 68B	$234.90 per pair	87dB	8 ohms	60.1Hz	55.1 lbs
74	Compare Bose 901 Series V	Bose 901 Series V	-	Approximately 81dB/2.…	6.2 ohms minimum	55.8Hz	35.3 lbs

Prices on this page were last checked October 1, 2026 at 6:23 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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#1 GR-Research NX-Treme: $9662 per pair for the kit with subs (assembly required) GR Research eBay

Pros: Amazing in terms of soundstage and imaging as the speaker can radiate in all directions and not have internal reflections due to there not being a speaker box. One of the highest sensitivity speakers around. Open baffle mids, highs and bass (using GR-Research Open baffle subs). If you have not heard open baffle bass, you must hear it in person, there’s no going back. Amazing in terms of imaging as the speaker can radiate in all directions and not have internal reflections due to there not being a speaker box. Can easily be driven by tube amps due to the mild impedance. Measured bass extension of <20Hz (-3dB).

Cons: Very tall and will require GR-Research open baffle subwoofers one on each side

Full GR-Research NX-Treme review and specifications →

Bass Extension (-3dB)	<20Hz (With GR-Research open baffle subwoofers)
DIY Kit	Yes
Dimensions	85”H x 17”W x 20”D (2159 x 431.8 x 508 mm) (plus a subwoofer on each side)
Drivers	Eight 6.5” M165 open baffle woofer, Two 6.5” M165NQ open baffle midrange, GR Neo 3 Magnetic planar open baffle tweeter; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers; Three 12-inch Rythmik Audio servo-controlled subwoofers
Impedance	8 ohms
Sensitivity	94.5dB
Weight	(35.3 lbs (16 kg))
Woofer Cabinet	open baffle

Check current price at GR Research ($9662) →Search eBay for GR-Research NX-Treme →

Links
- Official GR-Research NX-Treme Website
- Official GR-Research Open Baffle Triple Subwoofers Website
Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
Head-to-Head Comparisons

#2 KEF Blade Two Meta: $28,000 per pair only sold in stores eBay

Pros: True point-source coaxial design (four 6.5in mid-bass drivers flanking a coincident mid/tweeter) with matched ~50 degree horizontal and vertical dispersion, unusual for a multi-driver speaker. Fully rounded, edgeless cabinet eliminates baffle diffraction. Frequency response holds within about 2.5dB across the listening window. Extremely low harmonic and multitone distortion even at 96dB, with under 0.5dB of compression at full output, rivaling the Reference 1 Meta and JBL 4367 in dynamic range. Reviewer described the imaging and soundstage depth as revealing recording details other speakers he tested (PS Audio FR10, MoFi SourcePoint 8, Neumann KH80) masked. Available in any custom finish at no extra charge. Measured bass extension of 31Hz (-3dB), with a measured sensitivity of 86.8dB.

Cons: 2dB dip and slight resonance around 200Hz, also visible in KEF white paper and likely cabinet-related. Bass rolls off fairly quickly below its 31Hz F3. Horizontal dispersion (~50 degrees) is narrower than the reviewer preferred 70-80 degrees; benefits from toeing out 10-20 degrees to open soundstage without losing image focus. Needs a separate power amp, not AVR-friendly.

Full KEF Blade Two Meta review and specifications →

Bass Extension (-10dB)	26Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	31Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	46.6”H x 13.5”W x 14.8”D (1183.6 x 342.9 x 375.9 mm)
Drivers	4 x 165 mm (6.5 in.) aluminium cone, force cancelling woofers, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) aluminium dome with MAT tweeter
Impedance	4 ohms nominal (3.3 ohms minimum, measured, Erin’s Audio Corner)
Sensitivity	86.8dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	6.99
Spinorama Preference Score with Perfect Sub	8.11
Weight	79.4 lbs (36 kg) each
Woofer Cabinet	ported, rear

Search eBay for KEF Blade Two Meta →

#3 MoFi SourcePoint V10 Master Edition: $7995 per pair Crutchfield eBay

Pros: Extended bass to approximately 30 Hz in-room without subwoofer; images with excellent precision indicating tight frequency response matching between speakers. Integrated bass management with three-way treble attenuation switches for room tuning. New design from Andrew Jones represents reviewer personal second choice (behind only KEF Blade 2 Meta at 29k) among hundreds of systems auditioned; ranks above Dutch & Dutch 8C, JBL 4367, and JBL M2. Measured bass extension of 38Hz (-3dB), with a measured sensitivity of 88.8dB.

Cons: Moderate sensitivity (~89 dB) means amplifier power requirements higher than many alternatives. Deep bass extension ends above subsonic frequencies (pipe organ territory below 17 Hz requires subwoofer).

Full MoFi SourcePoint V10 Master Edition review and specifications →

Bass Extension (-10dB)	25Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	38Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	48.8”H x 15.5”W x 19.9”D (1239.5 x 393.7 x 505.5 mm)
Drivers	10” woofer, 10” paper‑cone concentric midrange, 1.25” soft‑dome concentric tweeter
Impedance	6 ohms nominal, 5.3 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	88.8dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.00
Spinorama Preference Score with Perfect Sub	6.31
Weight	160.9 lbs (73 kg)
Woofer Cabinet	passive radiator

Check current price at Crutchfield ($7995) →Search eBay for MoFi SourcePoint V10 Master Edition →

#4 MoFi SourcePoint 888: $5495 per pair Crutchfield eBay

Pros: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz, giving genuinely full-range output (F3 34Hz, F10 26Hz) other than the deepest subsonic content. Ranked by the reviewer among his personal top three speakers out of roughly 200 tested, alongside the KEF Blade 2 Meta and Dutch & Dutch 8C, despite costing a small fraction of either. Excellent compression/dynamic-range linearity, holding its own against much pricier speakers like the March Audio Sointuva AWG, KEF Reference 1 Meta, and KEF Blade 2 Meta. On-axis (0°) and 30°-off-axis estimated in-room responses track within about 1-1.5dB of each other above 500Hz, so tonal balance barely changes with placement or listening angle: excellent for multi-seat home theater or entertaining. Wide horizontal dispersion of about ±60°. Distortion stays low: under 1% at 86dB, and under 1% above 200Hz even at 96dB, with multitone distortion mostly under 1% as well. Not a difficult amplifier load (5-ohm minimum impedance, 4.2-ohm minimum EPDR). Checks the three boxes the reviewer considers essential for a home theater speaker: low compression, low distortion, and excellent directivity. Measured bass extension of 34Hz (-3dB), with a measured sensitivity of 85.6dB.

Cons: A significant investment, best ordered from a dealer with a good return policy. Large and heavy floorstander (about 96 lbs, 42” tall) requiring real floor space and rear clearance. Positioning is fairly specific: needs about 2 feet from the rear wall. Closer causes boominess in the 40-50Hz region, farther loses bass extension. Vertical dispersion (about ±50°) is narrower than horizontal (about ±60°), since the two 8” woofers are spaced vertically apart on a tower cabinet, causing some vertical mismatch at lower frequencies. A small on-axis dip around 500Hz and a deliberately lower tweeter level (about 0.5dB below the midrange) are intentional design choices for smoother in-room response, but mean the raw on-axis measurement isn’t perfectly flat. A mild diffraction-related dip appears around 3kHz in directivity measurements. Toeing the speaker out more than about 10° starts to noticeably reduce top-end energy.

Full MoFi SourcePoint 888 review and specifications →

Bass Extension (-10dB)	26Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	34Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	41.2”H x 12.6”W x 16.1”D (1046.5 x 320 x 408.9 mm)
Drivers	Dual 8” paper cone woofers, 8” Paper Cone midrange, 1.25” wide roll soft dome tweeter
Impedance	6 ohms nominal, 5 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	85.6dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	6.09
Spinorama Preference Score with Perfect Sub	7.21
Weight	94.8 lbs (43 kg) each
Woofer Cabinet	ported, rear

Check current price at Crutchfield ($5495) →Search eBay for MoFi SourcePoint 888 →

#5 Revel F328Be: $19,359.90 per pair Crutchfield eBay

Pros: CEA2034 spinorama shows a quite flat on-axis response with superb directivity and efficiency above 90dB. Predicted in-room response is extremely accurate, with a smooth ~5dB downward slope from bass to treble that suits typical rooms without correction. Early reflections sum very nicely with the direct sound. Horizontal beamwidth of about ±70 degrees is wide and quite smooth. At 96dB SPL/1m distortion stays easily below the reviewer’s audibility threshold across nearly the whole range. Measured bass extension of 74Hz (-3dB), with a measured sensitivity of 91dB.

Cons: Vertical directivity is asymmetric: the reviewer recommends staying between -20 and +40 degrees relative to the tweeter axis, reflecting the driver layout of this three-way tower. Impedance dips to a minimum of 3 ohms with an additional resonance-driven phase swing, calling for an amplifier comfortable with a demanding load. Very expensive and very heavy (51 kg each).

Full Revel F328Be review and specifications →

Bass Extension (-10dB)	39Hz (measured, Audio Science Review)
Bass Extension (-3dB)	74Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	50.9”H x 13.5”W x 17.6”D (1292.9 x 342.9 x 447 mm)
Drivers	Three 8” (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofer, 5-1/4” (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1” (25mm) Beryllium dome, with acoustic lens waveguide tweeter
Impedance	8 ohms nominal (3 ohms minimum, measured by Audio Science Review)
Sensitivity	91dB (measured, Audio Science Review)
Spinorama Preference Score	6.40
Spinorama Preference Score with Perfect Sub	7.81
Weight	112.4 lbs (51 kg) each
Woofer Cabinet	ported, rear

Check current price at Crutchfield ($9679.95) →Search eBay for Revel F328Be →

Links
- Official Revel F328Be Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Revel F328Be More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#6 Radiant Acoustics Clarity 66: $7,998 per pair Radiant Acoustics eBay

Pros: ASR’s revised Spinorama measurement shows bass reaching 32.2Hz at -3dB and 27.8Hz at -6dB, giving substantial low-end weight without a subwoofer. The response spans 2.3dB from 300Hz to 5kHz, with preference scores of 6.01 standalone and 7.03 with an ideal subwoofer. The review’s exceptionally low bass distortion at ordinary levels complements that extension, while dual 6.5-inch Purifi woofers provide a strong foundation for full-range listening. Measured bass extension of 32.2Hz (-3dB), with a measured sensitivity of 85.9dB.

Cons: Vertical directivity is narrow and horizontal coverage is uneven, so listening height and placement affect tonal balance. Treble resonances and response irregularities keep it from reference-level neutrality. Spinorama’s modeled EQ improves the scores to 6.85 standalone and 7.75 with an ideal subwoofer, but those are corrected results, not stock performance. Measured sensitivity is 85.9dB at 2.83V/1m with a nominal 4-ohm load; use an amplifier comfortable driving 4 ohms. Distortion rises at very high playback levels.

Full Radiant Acoustics Clarity 66 review and specifications →

Bass Extension (-10dB)	24.4Hz (measured, Audio Science Review)
Bass Extension (-3dB)	32.2Hz (measured, Audio Science Review)
Crossover Frequency	2.4kHz
DIY Kit	No
Dimensions	40.4”H x 8.7”W x 14”D (1025 x 222 x 355 mm)
Drivers	Custom waveguide-loaded tweeter with beam-expansion fins, 2x 6.5” Purifi USHINDI aluminum-cone woofers
Impedance	4 ohms nominal
Sensitivity	85.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified)
Spinorama Preference Score	6.01
Spinorama Preference Score with Perfect Sub	7.03
Weight	101.4 lbs (46 kg) each
Woofer Cabinet	ported, large rear port

Check current price at Radiant Acoustics ($7,998) →Search eBay for Radiant Acoustics Clarity 66 →

#7 Ascend Acoustics ELX Ribbon Tower: $5,698 per pair Ascend Acoustics eBay

Pros: A RAAL 70-20xram ribbon tweeter and dual SEAS Excel aluminum woofers in a 3-way, 4-driver bamboo tower measure a genuine 38.7Hz extension point with a nearly flat on axis slope of 0.05dB per octave, one of the flattest measured towers we list. The bass alignment Q of 0.62 keeps the low end well damped rather than peaky. Backed by a 7 year parts and labor warranty and hand assembled in Orange County, California, with each pair matched within +/-1.5dB. Measured bass extension of 38.7Hz (-3dB).

Cons: Listening window smoothness measures a moderate 0.40 and on axis deviation runs 0.286dB average, both trailing the tighter figures posted by some of the passive AsciLab and Ascend bookshelf models in this same batch. At $5698/pair it is Ascend’s most expensive tower, well above the Titan dome tweeter version of the same cabinet. The manufacturer’s own claimed sensitivity (87.5dB) runs nearly 1.5dB higher than the independently measured average (86.1dB), worth accounting for when matching an amplifier.

Full Ascend Acoustics ELX Ribbon Tower review and specifications →

Bass Extension (-10dB)	28.5Hz (measured, spinorama.org vendor data)
Bass Extension (-3dB)	38.7Hz (measured, spinorama.org vendor data)
Country	United States
DIY Kit	No
Dimensions	43”H x 7.5”W x 10.5”D (1092 x 190 x 267 mm)
Drivers	RAAL 70-20xram ribbon tweeter, 6” SEAS Excel Curv midrange (sealed sub-chamber), 2x 6” SEAS Excel aluminum woofers
Enclosure	ported
Frequency Response	36-27,000Hz +/-3dB anechoic (manufacturer)
Impedance	8 ohms nominal
Power Handling	400W continuous, 600W peak
Sensitivity	87.5dB @ 2.83V/1m anechoic (manufacturer)
Spinorama Preference Score	6.97
Spinorama Preference Score with Perfect Sub	8.42
Warranty	7 years parts and labor
Weight	56 lbs (25.4 kg) each

Check current price at Ascend Acoustics ($5,698) →Search eBay for Ascend Acoustics ELX Ribbon Tower →

#8 Magico S5 2024: $82,000 per pair Audio Solutions eBay

Pros: Manufacturer Spinorama data shows exceptionally flat on-axis response, with just 0.15dB average absolute deviation and 0.89 listening-window smoothness inside a narrow 1.3dB reference band. Preference scores are 7.35 without a subwoofer and 8.52 with one. Bass reaches 37Hz at -3dB, 27.9Hz at -6dB and about 20.8Hz at -10dB from two 10-inch woofers, so most music needs no subwoofer. The diamond-coated beryllium tweeter, graphene midrange and heavily braced curved aluminum cabinet are built for high output with low coloration.

Cons: At $41000 per pair it is one of the most expensive speakers we list, and it is sold only through Magico dealers. The measurements are manufacturer supplied and digitized from published graphs rather than an independent ASR or Erin test. A 2.78 directivity-index deviation is less even than the flattest on-axis numbers suggest. The 4 ohm load, 88dB sensitivity and 118kg weight call for a powerful amplifier and careful placement.

Full Magico S5 2024 review and specifications →

Bass Extension (-10dB)	approximately 20.8Hz (measured, manufacturer data on spinorama.org)
Bass Extension (-3dB)	37Hz (measured, manufacturer data on spinorama.org)
DIY Kit	No
Dimensions	48”H x 19.1”W x 19.3”D (1220 x 485 x 490 mm)
Drivers	Two 10” graphene Nano-Tec woofers; 6” graphene Nano-Tec midrange; 28mm diamond-coated beryllium tweeter
Enclosure	Curved aluminum
Frequency Response	20Hz-50kHz (manufacturer, in-room)
Impedance	4 ohms nominal
Power Handling	50-1000W recommended amplifier power
Sensitivity	88dB (manufacturer specified)
Spinorama Preference Score	7.35
Spinorama Preference Score with Perfect Sub	8.52
Weight	260.1 lbs (118 kg) each

Check current price at Audio Solutions ($41,000) →Search eBay for Magico S5 2024 →

Links
- Magico S5 Official Page
Reviews, Comparisons and Sound Samples
- Magico Measurements (spinorama.org)
- The Absolute Sound First Listen
Head-to-Head Comparisons

#9 KEF R5 Meta: $3,999.99 per pair Discontinued eBay

Pros: 12th generation 5” Uni-Q coaxial driver array with Metamaterial Absorption Technology (MAT) delivers remarkably smooth, controlled horizontal (±50°) and vertical directivity with near-identical off-axis tracking. Exceptional frequency response linearity through the midrange and treble that takes extremely well to minor parametric EQ adjustments. Constrained Layer Damping cabinet construction and flexible rear ports minimize enclosure resonances and port turbulence. Deliberately tuned low-frequency roll-off profile permits boundary-adjacent room placement near front walls without boomy acoustic buildup. Measured bass extension of 52Hz (-3dB), with a measured sensitivity of 86dB.

Cons: Low-frequency extension (F3 of 52Hz, F10 of 38Hz) requires pairing with a dedicated subwoofer crossed over at 80Hz for high-output home theater or bass-heavy music performance. High-frequency radiation above 7kHz shows a mild on-axis taper (1-2dB downward slope), performing best when listened to 10-20° off-axis. Moderate sensitivity (~86dB SPL average) requires a clean, robust 4-ohm capable amplifier to drive high dynamic peaks without clipping. Discontinued.

Full KEF R5 Meta review and specifications →

Bass Extension (-10dB)	38Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	52Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	42.2”H x 10.7”W x 13.6”D (1073 x 273 x 346 mm)
Drivers	1 in. vented aluminum dome tweeter with MAT, 5 in. aluminum cone midrange, two 5.25 in. hybrid aluminum cone woofers
Impedance	4 ohms nominal
Sensitivity	86dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	6.33
Spinorama Preference Score with Perfect Sub	8.07
Weight	54 lbs (24.5 kg) each
Woofer Cabinet	ported, rear

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#10 Revel F226Be: $7700 per pair Crutchfield eBay

Older model: the Revel F206 (ranked lower, rated 4.5/5).

Pros: Compact three-way tower with a beryllium dome tweeter in an acoustic lens waveguide, a dedicated 5.25” mid-range, and dual 6.5” woofers (not a coaxial layout): all Deep Ceramic Composite aluminum cones engineered specifically to avoid breakup outside their crossover bands, and it measures that way: neither the woofers nor the mid-range show breakup spikes even well outside their intended pass bands, and even the front port measures unusually clean (only a mild ~3dB bump around 150Hz, well controlled versus the resonances the reviewer typically sees from ports). On-axis frequency response holds within about ±1.5dB above roughly 65Hz (excellent linearity) and off-axis behavior tracks it closely, with only mild, subdued peaking around 4-6kHz that doesn’t show up as real resonance in the spinorama data. Average sensitivity around 90dB (2.83V/1m), notably higher than some competing three-way designs and most bookshelf speakers, translating directly into better dynamic range at both low and high listening levels: one reviewer specifically praised its ability to deliver full transient impact (snare hits, kick drum) even at quiet, conversational volumes rather than needing to be cranked up to feel dynamic. Wide, consistent horizontal radiation of about ±60-70° at the -6dB point, landing right in the reviewer’s preferred range for an enveloping soundstage without excess diffusion, and exceptionally wide vertical dispersion: roughly ±80° up to 10kHz and still ±70° above that, which one reviewer called the widest vertical radiation pattern he had measured to date. Distortion stays under 3% even at 104dB SPL, and in real-world testing up to 105dB from 12-14 feet away, full-range with no crossover, the reviewer heard no audible mechanical noise, port chuffing, or compression at all. Flat enough on- and off-axis response that toeing the speaker 10-15° away from the listener preserves the same tonal balance rather than changing it, and the wide, well-controlled directivity lets sidewall reflections reinforce rather than smear the soundstage. Measured bass extension of 56Hz (-3dB), with a measured sensitivity of 89.7dB.

Cons: Minimum impedance dips to about 3.7-4 ohms below roughly 500Hz despite the 8-ohm nominal rating, so it wants a genuine 4-ohm-capable two-channel amplifier; budget AVRs rated only for 6 or 8 ohms may struggle. F3 of 56Hz and F10 of 36Hz mean it doesn’t extend nearly as low as some three-way rivals with larger woofers: a dedicated subwoofer (10-12”, or 15” for content below 30Hz) is recommended for home theater or bass-heavy music, even though the speaker itself can play surprisingly loud without one. Vertical directivity tolerance is tighter in the crossover handoff region than a true coaxial design would offer, since the tweeter, midrange, and woofers are physically separated: a mild directivity bump appears around 2-2.5kHz that’s typical of non-coaxial multi-way speakers, though not audibly problematic within about ±10° vertically. On-axis, the top end reads as a bit bright according to one reviewer’s subjective impression, generally benefiting from some toe-out. High-gloss cabinet finish can create distracting reflections if used behind a projector screen in a home theater setup. Front-ported, so it can technically sit close to a wall, but doing so makes the bass boomier.

Full Revel F226Be review and specifications →

Bass Extension (-10dB)	36Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	56Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	41.3”H x 9.8”W x 13.7”D (1049 x 248.9 x 348 mm)
Drivers	Two 6.5” (165mm) Deep Ceramic Composite aluminum cones, with cast frames woofer, 5-1/4” (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1” (25mm) Beryllium dome, with acoustic lens waveguide tweeter
Impedance	8 ohms nominal (3.7 ohms minimum, measured, Erin’s Audio Corner)
Sensitivity	89.7dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.96 (spinorama.org)
Spinorama Preference Score with Perfect Sub	8.15 (spinorama.org)
Weight	58.2 lbs (26.4 kg) each
Woofer Cabinet	ported, front

Check current price at Crutchfield ($7700) →Search eBay for Revel F226Be →

#11 JBL 4367: $16,500 per pair Discontinued eBay

Newer model: the JBL 4369. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.

Pros: Three-way design pairing a 15” front-ported woofer with a compression driver on a controlled-dispersion horn/waveguide, crossed over at 700Hz. On-axis frequency response is nearly dead flat, holding within about ±1.5dB, with the listening window tracking it closely except right at the crossover. Distortion stays below 1% THD across the entire audible band at both 86dB and 96dB. Compression/dynamic-range linearity is exceptional: within about a quarter of a dB from 76dB to 102dB, among the best the reviewer has measured. High sensitivity (about 92.6dB average) eases the amplifier match despite the speaker’s size. Minimal rear radiation thanks to the 15” woofer’s directivity and front-firing ports: rear energy runs about 20dB down from the primary wavefront, giving it a near-cardioid radiation pattern. Well-controlled horn directivity keeps the soundstage from noticeably shifting in width across the 700Hz crossover region. A natural high-frequency rolloff above about 7-8kHz gives it an easy, non-fatiguing character for extended listening sessions. Measured bass extension of 43Hz (-3dB), with a measured sensitivity of 92.5dB.

Cons: At roughly $16500/pair, this is a major investment: the reviewer recommends buying from a dealer with a liberal return policy. Vertical response shows dips beyond about ±10-20°, with a larger null further out: an inherent trade-off of mating a 15” woofer to a horn compression driver at a 700Hz crossover, since crossing lower would hurt power handling and dynamic range. Horizontal directivity isn’t perfectly consistent with frequency: narrow (about ±20°) through 200-800Hz, briefly widening to near ±50° above the crossover, then narrowing again at high frequency. An unusual, non-constant pattern. The high-frequency rolloff that gives it an easy-listening character also reduces the sense of air and space in the soundstage when listening from off-center seats. Massive and heavy (about 120 lbs, roughly 36-37” tall): needs to be raised on a stand to bring the horn to ear level, and isn’t something one person easily moves alone. Only modest EQ adjustment is available on the speaker itself (about ±1-2dB bass/treble trim). Discontinued.

Full JBL 4367 review and specifications →

Bass Extension (-10dB)	31Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	43Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	37.2”H x 22.2”W x 16.8”D (944.9 x 563.9 x 426.7 mm)
Drivers	15” (380mm) 2216Nd-1 Dual Differential Drive® woofer, 3” (75mm) D2430K dual compression tweeter
Impedance	4 ohms nominal (5.3 ohms minimum above 80Hz, measured by Erin’s Audio Corner)
Sensitivity	92.5dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	5.07
Spinorama Preference Score with Perfect Sub	6.88
Weight	119 lbs (54 kg) each
Woofer Cabinet	ported, front

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#12 KEF Reference 203: $5,000 per pair Discontinued eBay

Newer model: the KEF Reference 3 Meta, ranked lower, rated 4.6/5.

Pros: An unusually accomplished 4-way design for its era: excellent on-axis linearity (within about +/-3dB), genuinely good directivity both horizontally (~55 degrees) and vertically (~40-50 degrees), and an estimated in-room response that closely matches what the reviewer actually heard. Distortion is excellent: under 1% harmonic above 80Hz at both 86dB and 96dB, and multitone stays around 1% even at 96dB. Bass reaches a real F3 of 51Hz (F10 37Hz), with in-room extension into the low-mid-40s. The reviewer’s overall listening notes were essentially “nothing stood out bad or good”: a genuinely neutral, accurate speaker with a distinctive rounded-baffle look that avoids the diffraction issues a flat baffle this wide would normally have. Measured bass extension of 51Hz (-3dB), with a measured sensitivity of 88dB.

Cons: This is a 20+ year old, long-discontinued speaker only findable secondhand (Facebook Marketplace, Craigslist, audio forums): condition, driver matching, and component aging vary by unit, so audition before buying if at all possible. Demands a robust amplifier: impedance dips to about 3.6 ohms with an EPDR of 2.2 ohms. The small supertweeter shows minor breakup artifacts at the extremes of the vertical polar plot and some compression at very high output in the top octave, though neither was audible in normal listening.

Full KEF Reference 203 review and specifications →

Bass Extension (-10dB)	37Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	51Hz (measured, Erin’s Audio Corner)
Crossover Frequency	400Hz, 2.7kHz, 15kHz
DIY Kit	No
Dimensions	42”H (1067H mm)
Drivers	1x 0.75” supertweeter, coaxial 1” dome tweeter + 6.5” midrange, 2x 6.5” woofers
Frequency Response	55Hz - 55kHz ±3dB (Manufacturer specified)
Impedance	8 ohms nominal (3.6 ohms minimum, measured, Erin’s Audio Corner; 3.2 ohms per manufacturer spec)
Recommended Power	50-200W
Sensitivity	88dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	5.83
Spinorama Preference Score with Perfect Sub	7.84
Weight	58 lbs (26.3 kg)
Woofer Cabinet	Bass reflex, with switchable flat/cut/lifted bass ports for wall placement

Search eBay for KEF Reference 203 →

Links
- Erin’s Audio Corner Website KEF Reference 203
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#13 KEF Reference 3 Meta: $15,999.98 per pair KEF eBay

Older model: the KEF Reference 203 (ranked higher, rated 4.6/5).

Pros: Three-way bass reflex tower built around KEF’s 12th generation Uni-Q driver, a 125mm aluminium midrange with a 25mm aluminium dome tweeter and MAT at its centre, plus two 165mm aluminium woofers. KEF’s own Spinorama measurements, published on spinorama.org, hold the 300Hz to 5kHz response within 1.4dB, one of the flattest results in this category, and the listening window is very smooth (0.90), so tonal balance stays even across a normal seating area. Measured bass reaches 42Hz (-3dB) and about 31Hz (-10dB), deep enough that many rooms won’t need a subwoofer for music. Measured bass extension of 42.2Hz (-3dB).

Cons: The only measurements are KEF’s own, not independently verified, and spinorama.org computes no preference score for them. Sound power directivity is good but not class leading (3.15dB index deviation). Sensitivity is a moderate 86dB and impedance drops to 3.2 ohms, so it needs a capable amplifier (KEF recommends 50 to 300W).

Full KEF Reference 3 Meta review and specifications →

Bass Extension (-10dB)	about 31.1Hz (measured, KEF vendor data via spinorama.org)
Bass Extension (-3dB)	42.2Hz (measured, KEF vendor data via spinorama.org)
Country	United Kingdom
Crossover Frequency	450Hz, 2.1kHz
Dimensions	45.5”H x 8.1”W x 18.2”D (1155 x 205 x 462 mm)
Drivers	Uni-Q: 125mm aluminium cone midrange, 25mm aluminium dome tweeter with MAT; 2x 165mm aluminium cone woofers
Frequency Response	43Hz-35kHz ±3dB (manufacturer specified)
Impedance	4 ohms nominal, 3.2 ohms minimum (manufacturer specified)
Maximum SPL	113.5dB (manufacturer specified)
Recommended Power	50-300W
Sensitivity	86dB (2.83V/1m, manufacturer specified)
Woofer Cabinet	ported

Check current price at KEF ($15,999.98) →Search eBay for KEF Reference 3 Meta →

Links
- Official KEF Reference 3 Meta Website
Reviews, Comparisons and Sound Samples
- KEF Vendor Measurements (spinorama.org)
Head-to-Head Comparisons

#14 JBL HDI-3800: $5,000 per pair Discontinued eBay

Pros: 2410H-2 1” Teonex compression driver matched to a custom High-Definition Imaging (HDI) horn geometry achieves exceptional horizontal directivity control, high output capability, and effortless transient response. Triple 8” Advanced Aluminum Matrix woofers deliver deep, authoritative bass extension down to an F3 of 37Hz and F10 of 28Hz with minimal low-frequency compression. Outstanding sensitivity (92dB SPL at 2.83V/1m) and ultra-low THD/multitone distortion allow extremely high undistorted SPL output in large home theater spaces. Measured bass extension of 37Hz (-3dB), with a measured sensitivity of 92dB.

Cons: On-axis frequency response features a narrow upper-frequency elevation around 8-10kHz, performing noticeably smoother when toed out 10-20° off-axis. Vertical directivity handoff across the triple woofer layout creates vertical soundstage height tilt depending on listening distance and ear height. Minimum impedance dips to 3.8 ohms, requiring high-current amplifier stability. Substantial cabinet dimensions and 38kg weight require significant room real estate. Discontinued.

Full JBL HDI-3800 review and specifications →

Bass Extension (-10dB)	28Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	37Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	43.3”H x 11.8”W x 16.4”D (1100.5 x 300.0 x 417.8 mm)
Drivers	1 in. 2410H-2 Teonex compression driver with HDI horn, triple 8 in. Advanced Aluminum Matrix cone woofers
Impedance	4 ohms nominal (3.8 ohms minimum, measured by Erin’s Audio Corner)
Sensitivity	92dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	5.62
Spinorama Preference Score with Perfect Sub	7.03
Weight	83.8 lbs (38.0 kg) each
Woofer Cabinet	ported, rear

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#15 Focal Chora 816: $900 per pair used Discontinued eBay

Newer model: the Focal Theva N°2. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.

Pros: CEA2034 spinorama shows a generally even on-axis response with nice bass extension and high sensitivity. Predicted in-room response is very good aside from a peak around 8kHz. Horizontal beamwidth of about ±60 degrees is typical and fairly controlled. Distortion is very low at 86dB SPL/1m and still usable at 96dB SPL/1m. Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 91dB.

Cons: Some messiness appears between 500Hz-2kHz on-axis, including a dip around 550Hz. Vertical directivity narrows a little, so listening height matters more than with a coincident design. Cumulative spectral decay (waterfall) shows a fair bit of resonances lingering across the midrange. Distortion rises substantially in the 1-2kHz region at 96dB SPL/1m. Minimum impedance dips to about 3.9 ohms. Discontinued.

Full Focal Chora 816 review and specifications →

Bass Extension (-10dB)	35Hz (measured, Audio Science Review)
Bass Extension (-3dB)	60Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	40.7”H x 11.8”W x 15.3”D (1033.8 x 299.7 x 388.6 mm)
Drivers	6.5” (16.5cm) Slatefiber woofer, 6.5” (16.5cm) Slatefiber midrange, 1” (25mm) TNF Al/Mg inverted dome tweeter
Impedance	8 ohms nominal (3.9 ohms minimum, measured, Audio Science Review)
Sensitivity	91dB (measured, Audio Science Review)
Spinorama Preference Score	4.30
Spinorama Preference Score with Perfect Sub	6.37
Weight	40.8 lbs (18.5 kg) each
Woofer Cabinet	ported, front

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Links
- Official Focal Chora 816 Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Focal Chora 816 More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#16 Revel F208: $4,800 per pair used Discontinued eBay

Newer model: the Revel F228Be, ranked lower, rated 4.5/5.

Pros: CEA2034 spinorama shows a fairly even on-axis response with sensitivity matching spec at ~87-88dB. Predicted in-room response is a smooth, textbook-quality downward slope that should translate well to most rooms without correction. Early reflections sum so cleanly with the direct sound that side-wall absorption isn’t recommended: it would work against the speaker’s naturally well-integrated off-axis behavior. Distortion stays below 0.5% from 100Hz up at 96dB/1m, with all distortion components falling below audible threshold above 200Hz. Very wide horizontal directivity of about ±75 degrees. Measured performance was judged very close to Revel’s own flagship Salon2, and Revel’s speakers (including this one) are developed using Harman’s double-blind listening test methodology. Preference score of 7.4 (7.7 with a subwoofer added). Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 88.2dB.

Cons: Some directivity error and tweeter-response ripple right at the 2.2kHz crossover point. A notable on-axis dip at about 4kHz, attributed to probable cabinet diffraction. Cumulative spectral decay (waterfall) shows an unexplained resonance around 4-5kHz that the reviewer couldn’t pin down a clear cause for. Vertical directivity shows narrowband interference nulls just above and below the tweeter axis (roughly 2-3kHz), typical of a non-coaxial tower with vertically separated drivers, so listening height matters more than it would with a coincident design. Minimum impedance dips to 3.4 ohms, calling for a robust, high-current amplifier. Distortion climbs substantially below about 80-100Hz (up to ~5% in the deep bass) when driven hard, an excursion-limited trade-off typical of towers at high output. Isolating the woofers alone shows their usable range ending around 500-700Hz at the crossover, with somewhat elevated (though still low in absolute terms) 2nd/3rd harmonic distortion in the 100-300Hz region. Discontinued.

Full Revel F208 review and specifications →

Bass Extension (-10dB)	24Hz (measured, Audio Science Review)
Bass Extension (-3dB)	47Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	46.6”H x 13.5”W x 14.8”D (1183.6 x 342.9 x 375.9 mm)
Drivers	Dual 8” (20 cm) Aluminum Cone, Cast-frame Woofers, 5.25” (13.3 cm) Aluminum Cone, Cast-frame Midrange, 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide
Impedance	8 ohms nominal, 3.5 ohms minimum (measured, Audio Science Review)
Sensitivity	88.2dB (measured by Audio Science Review; 88.5dB manufacturer specified)
Spinorama Preference Score	6.35
Spinorama Preference Score with Perfect Sub	7.67
Weight	79.4 lbs (36 kg) each
Woofer Cabinet	ported, front

Search eBay for Revel F208 →

Links
- Official Revel F208 Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Revel F208 More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#17 Revel F228Be: $9,000 per pair Crutchfield eBay

Older model: the Revel F208 (ranked higher, rated 4.5/5).

Pros: CEA2034 spinorama shows an essentially flat on-axis response with very nice directivity. Predicted in-room response is nearly perfect, with a smooth slope down from bass to treble. Horizontal beamwidth of about ±70 degrees is wide and holds up well until narrowing above 8kHz. Vertical directivity offers more degrees of listening-height freedom than a typical bookshelf design, a benefit of this tower’s driver layout. Distortion is extremely low across the full audio range at 86dB SPL/1m and stays comfortable even at 96dB SPL/1m. Near-field measurements of the individual drivers show nice, well-integrated crossover behavior with only low-level resonances. Measured bass extension of 61Hz (-3dB), with a measured sensitivity of 89.3dB.

Cons: Minimum impedance dips to 3.4 ohms with a secondary rise around 2kHz, calling for an amplifier comfortable with a demanding load. Very expensive and very heavy (51 kg each).

Full Revel F228Be review and specifications →

Bass Extension (-10dB)	25Hz (measured, Audio Science Review)
Bass Extension (-3dB)	61Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	50.9”H x 13.5”W x 17.6”D (1292.9 x 342.9 x 447 mm)
Drivers	Dual 8” (200mm) Deep Ceramic Composite aluminum cones, with cast frames woofers, 5-1/4” (130mm) Deep Ceramic Composite aluminum cone, with cast frame midrange, 1” (25mm) Beryllium dome, with acoustic lens waveguide tweeter
Impedance	8 ohms
Sensitivity	89.3dB (300Hz-3kHz @ 2.83V/1m, measured by Audio Science Review; 90dB manufacturer specified)
Spinorama Preference Score	6.01
Spinorama Preference Score with Perfect Sub	7.51
Weight	112.4 lbs (51 kg) each
Woofer Cabinet	ported, front

Check current price at Crutchfield ($4500) →Search eBay for Revel F228Be →

Links
- Official Revel F228Be Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Revel F228Be More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#18 Revel F206: $2,000 per pair used Discontinued eBay

Newer model: the Revel F226Be, ranked higher, rated 4.6/5.

Pros: CEA2034 spinorama shows a pretty even on-axis response. Predicted in-room response is excellent, with a smooth downward slope. Horizontal beamwidth of about ±65 degrees is wide, if a bit uneven. Distortion is very nice at 86dB SPL/1m, falling below the frequency range where human hearing is most sensitive, and stays excellent even at 96dB SPL/1m. Near-field measurements of the individual drivers show nice suppression of port and woofer resonances. Really amazing value for the performance. Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 87dB.

Cons: Some directivity error and a small peak around 4.5kHz show up alongside the directivity error around 3kHz. Vertical directivity means listening position needs to stay within the tweeter axis, though the reviewer notes there is some leeway. Minimum impedance dips to 3.3 ohms, calling for an amplifier comfortable with a demanding load. Discontinued.

Full Revel F206 review and specifications →

Bass Extension (-10dB)	34Hz (measured, Audio Science Review)
Bass Extension (-3dB)	60Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	40.3”H x 8.4”W x 12.2”D (1023.6 x 213.4 x 309.9 mm)
Drivers	Dual 6.5” (16.5 cm) Aluminum Cone, Cast-frame Woofers, 5.25” (13.3 cm) Aluminum Cone, Cast-frame Midrange, 1” (2.5 cm) Aluminum Tweeter with Acoustic Lens Waveguide
Impedance	4 ohms nominal (3.3 ohms minimum, measured by Audio Science Review)
Sensitivity	87dB (measured, Audio Science Review)
Spinorama Preference Score	5.51
Spinorama Preference Score with Perfect Sub	7.52
Weight	57.3 lbs (26 kg) each
Woofer Cabinet	ported, front

Search eBay for Revel F206 →

Links
- Official Revel F206 Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Revel F206 More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#19 Revel Concerta2 F35: $900 per pair Crutchfield eBay

Pros: Two-and-a-half-way, four-driver design: a 1” aluminum dome tweeter on a waveguide, a 5.25” mid-range, and dual 5.25” mid-bass drivers in a rear-ported cabinet. Measured sensitivity of 89.4dB closely matches the 90dB spec, and distortion looks good at both 86dB and 96dB, holding up well even with a high-pass filter applied. At its sale price of $900/pair, down from full retail, the reviewer calls it a “no-brainer,” undercutting comparable budget floorstanders like the ELAC DF63. Frequency response and directivity mismatches are largely EQ-able, since most of what shows up in measurements traces to physical tweeter/mid-range separation rather than a fundamental flaw. Compression is fairly well controlled for the price: about 1dB of loss around 100Hz under long-term compression, described as “par for the course” at this cost. Measured bass extension of 70Hz (-3dB), with a measured sensitivity of 89.4dB.

Cons: F3 of 61Hz and F10 of 39Hz mean a subwoofer is needed for real bass extension. A dip in the lower midrange/2-3kHz region reduces attack and detail, and a peak around 5kHz adds some edge and sibilance in the lower treble. A peak in off-axis energy around 3kHz reflects off sidewalls at roughly 60-70° off-axis and arrives louder than the direct sound: this specific issue can’t be fixed with EQ (boosting the direct sound would boost the stronger reflection too) and would need acoustic absorption to properly address, though the reviewer considers it a minor, optional fix at this price. A couple of minor resonances appear in the impedance plot, including one around 300Hz that may partly explain a subtle sense of vocal warmth noticed in listening, though it’s more likely room-related. Minimum impedance around 3.8 ohms. Short-term compression testing shows some increased distortion in the tweeter and higher-frequency compression at loud output.

Full Revel Concerta2 F35 review and specifications →

Bass Extension (-10dB)	50Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	70Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	40.3”H x 8.4”W x 12.2”D (1023.6 x 213.4 x 309.9 mm)
Drivers	3x 5.25” deep anodized aluminum cone woofers, 1” Aluminum Tweeter
Impedance	6 ohms nominal (3.8 ohms minimum, measured by Erin’s Audio Corner)
Sensitivity	89.4dB (measured, Erin’s Audio Corner; 90dB manufacturer specified)
Spinorama Preference Score	5.35
Spinorama Preference Score with Perfect Sub	7.30
Weight	41 lbs (18.6 kg) each
Woofer Cabinet	ported, rear

Check current price at Crutchfield ($900) →Search eBay for Revel Concerta2 F35 →

#20 Perlisten S7t: $21,990 per pair The Music Room eBay

Pros: Measures a genuine -3dB extension point of 56.4Hz and a Harman-style -6dB in-room extension of 45Hz, with a strong 0.80 listening-window smoothness score and a mild, slightly warm on-axis tonal tilt (-0.13dB per octave) rather than a bright or forward balance. It was the first speaker in Perlisten’s S-Series to earn THX Dominus certification, and independent reviewers took notice: Audioholics called it one of the finest loudspeakers it has ever reviewed, with Stereophile, Hi-Fi News and The Absolute Sound all adding favorable coverage. Measured bass extension of 22Hz (-10dB).

Cons: On-axis deviation of 0.178dB and a directivity-index standard deviation of 3.16 are solid without being exceptional, and a bass-alignment Q of 3.41 suggests a somewhat resonant, less tightly damped low-frequency rolloff. Pricing runs $19,990 to $23,990/pair depending on finish and dealer, since Perlisten has no fixed published price and sells only through specialty AV dealers rather than mainstream retail.

Full Perlisten S7t review and specifications →

Bass Extension (-10dB)	22Hz (bass reflex) / 32Hz (acoustic suspension)
Bass Extension (-3dB)	56.4Hz (manufacturer spinorama data)
Certification	THX Dominus
Country	Designed in the United States (Verona, Wisconsin)
DIY Kit	No
Dimensions	51”H x 9.4”W x 15.7”D (1295 x 240 x 400 mm)
Drivers	28mm beryllium dome tweeter, 2x 28mm Textreme TPCD dome midranges, 4x 180mm (7”) Textreme TPCD woofers
Enclosure	4-way, switchable bass reflex / acoustic suspension
Frequency Response	80Hz-20kHz +/-1.5dB
Impedance	4 ohms nominal, 3.2 ohms minimum
Maximum SPL	117dB peak (manufacturer specified)
Power Handling	100-600W RMS recommended amplifier power
Sensitivity	92.2dB @ 2.83V/1m
Spinorama Preference Score	6.58
Spinorama Preference Score with Perfect Sub	8.72
Warranty	5 years, extendable to 6 with product registration
Weight	122.8 lbs (55.7 kg) each

Check current price at The Music Room ($21,990) →Search eBay for Perlisten S7t →

#21 Perlisten R5t: $8,790 per pair Audio Advice eBay

Pros: Measures a -3dB extension point of 44.6Hz and a Harman-style -6dB in-room extension (lfx) of 29Hz, deep for a mid-size tower, with a strong 0.82 listening-window smoothness score and a predicted in-room smoothness of 0.63. THX Dominus and THX Ultra certified at a fraction of Perlisten’s S7t flagship price, and reviewers across Sound & Vision, Audiograde, SoundStage Ultra and HiFiReport all rated it highly for its class, with Audiograde naming it a Best of 2023 pick. Measured bass extension of 24Hz (-10dB).

Cons: On-axis deviation of 0.277dB and a pronounced -0.28dB per octave downward slope point to a warmer, less forward tonal balance, consistent with Sound & Vision’s review finding it leans analytical rather than warm and wanting more air in larger rooms. It’s sold only in Piano Black through specialty AV dealers, with per-unit pricing that varies noticeably by retailer.

Full Perlisten R5t review and specifications →

Bass Extension (-10dB)	24Hz (bass reflex) / 38Hz (acoustic suspension)
Bass Extension (-3dB)	44.6Hz (manufacturer spinorama data)
Certification	THX Dominus, THX Ultra
Country	Designed in the United States (Verona, Wisconsin)
DIY Kit	No
Dimensions	43.3”H x 9.1”W x 13.8”D (1100 x 230 x 350 mm)
Drivers	3x 26mm silk dome (tweeter + 2 midrange), 2x 165mm (6.5”) HPF woofers
Enclosure	3-way, switchable bass reflex / acoustic suspension
Frequency Response	80Hz-20kHz +/-1.5dB
Impedance	4 ohms nominal, 3.2 ohms minimum
Maximum SPL	113.0dB peak (manufacturer specified)
Power Handling	100-250W RMS recommended amplifier power
Sensitivity	89.0dB @ 2.83V/1m
Spinorama Preference Score	7.16
Spinorama Preference Score with Perfect Sub	8.50
Warranty	5 years, extendable to 6 with product registration
Weight	58.4 lbs (26.5 kg) each

Check current price at Audio Advice ($4,395.00) →Search eBay for Perlisten R5t →

#22 KEF R5: $2,999 per pair Discontinued eBay

Pros: Slim three-way tower with the acoustic advantages of KEF’s coincident Uni-Q midrange/tweeter: horizontal and vertical off-axis responses track the direct sound smoothly, producing stable imaging and a well-behaved directivity index. Erin measured deep low-frequency reach for the cabinet width (77Hz F3 but 33Hz F10) and less than 1% harmonic distortion at 86dB. At 96dB it remains clean when high-passed, and its mild response deviations are suitable for equalization because the radiation pattern stays orderly. Measured bass extension of 77Hz (-3dB), with a measured sensitivity of 86dB.

Cons: The unusual gap between 77Hz F3 and 33Hz F10 indicates a gradual bass contour rather than flat deep-bass output; a subwoofer and roughly 80Hz high-pass are recommended for high-level playback. Erin measured a minimum near 3.5 ohms around 150Hz, although most of the curve remains above 4 ohms, so amplifier quality still matters. Sensitivity is approximately 86dB/2.83V/1m. At 102dB, compression reaches roughly 1dB around 150Hz, showing the limits of the twin 5.25-inch woofers. This original model lacks the Meta version’s MAT rear-wave absorption. Discontinued.

Full KEF R5 review and specifications →

Bass Extension (-10dB)	33Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	77Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	40.4”H x 6.9”W x 13.5”D
Drivers	1” aluminum tweeter coaxial with 5” midrange; dual 5.25” woofers
Impedance	Approximately 3.5 ohms minimum near 150Hz (measured, Erin’s Audio Corner)
Sensitivity	Approximately 86dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.78
Spinorama Preference Score with Perfect Sub	7.40
Weight	59.5 lbs (27 kg) each
Woofer Cabinet	ported, rear

Search eBay for KEF R5 →

Links
- Official KEF R Series Information
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#23 Arendal Sound 1610 Tower 8: $7,600 per pair Arendal Sound eBay

Pros: Arendal’s flagship passive tower, a 5-driver 3-way design with a dedicated carbon-cone midrange in its own sealed sub-enclosure and triple 8” aluminum woofers, measuring a -3dB extension point of 42.8Hz (manufacturer measurement); Erin’s Audio Corner independently measured F3 at 41Hz and F10 at 27Hz, with sensitivity of about 88dB at 2.83V/1m. Listening-window smoothness of 0.687 is strong for a tower this size. Erin’s Audio Corner also measured about plus or minus 60 degrees of horizontal dispersion, a wide-but-focused soundstage the reviewer specifically liked, plus a roughly 2-3dB mid-bass bump around 80Hz that adds real punch and weight to kick drum and low male vocals versus flatter competitors, and lower multi-tone distortion in the higher frequencies than two similarly priced coaxial rivals tested alongside it. Measured bass extension of 27Hz (-10dB), with a measured sensitivity of 89.5dB.

Cons: At 45.4kg each and nearly 4 feet tall, it’s a serious room commitment, and sound-power smoothness (0.378) is more middling than the on-axis figures suggest. Directivity-index standard deviation of 3.69, on the higher side, and a -0.22dB per octave downward tilt both point to a moderately dark tonal character, and predicted in-room smoothness (0.45) is only middling. Erin’s Audio Corner found the same 80Hz mid-bass bump pulls the F3 higher than a flatter tuning would, so bass appears to roll off more sharply below that point, and content under about 40Hz will need a subwoofer. Because it’s a 3-way design with a vertical gap between the tweeter and midrange, there’s a lobing null around 3kHz that causes an audible suck-out just below the tweeter’s axis, worth noting for home theater rows with more than one seating height. A dip through the upper mid-range to lower treble crossover softens the bite of brass and other transient-heavy instruments compared to a flatter response.

Full Arendal Sound 1610 Tower 8 review and specifications →

Bass Extension (-10dB)	27Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	41Hz (measured, Erin’s Audio Corner); 42.8Hz (manufacturer measurement)
Country	Norway (designed); manufactured overseas
DIY Kit	No
Dimensions	115.0H x 26.5W x 45.0D cm (119.8cm tall with feet)
Drivers	28mm Al-Mg dome tweeter, 5” carbon-cone midrange (sealed sub-enclosure), 3x 8” aluminum-cone woofers
Enclosure	3-way, ported (optional sealed configuration)
Impedance	4 ohms nominal
Sensitivity	89.5dB @ 2.83V/1m (manufacturer); 88dB @ 2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	7.03
Spinorama Preference Score with Perfect Sub	8.20
Weight	100 lbs (45.37 kg) each

Check current price at Arendal Sound ($7,600) →Search eBay for Arendal Sound 1610 Tower 8 →

Links
- Arendal Sound 1610 Tower 8 Official Page
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons
- Arendal Sound 1610 Tower 8 vs TAD Evolution 2
- Arendal Sound 1610 Tower 8 vs Revel F228Be

#24 TAD Evolution 2: $19,995 per pair House of Stereo eBay

Pros: Independently measured by ASR (not vendor-supplied data) with an excellent on-axis smoothness score of 0.182 and a nearly flat tonal balance (a slope of just -0.01dB per octave), from a beryllium tweeter on a cast-aluminum waveguide paired with dual MACC-diaphragm woofers. Alpha Audio’s review called it a “competition killer.”. Measured bass extension of 58.6Hz (-3dB).

Cons: Its directivity-index standard deviation of 3.70 and predicted in-room smoothness of 0.25 are both unremarkable, not matching the excellent on-axis smoothness, and it’s priced at $19995/pair, sold only through a small dealer network, with one dealer showing it temporarily sold out.

Full TAD Evolution 2 review and specifications →

Bass Extension (-10dB)	30.3Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)	58.6Hz (measured, ASR via spinorama.org)
Country	Japan
DIY Kit	No
Dimensions	12.6”W x 42.7”H x 15.9”D (320 x 1085 x 405 mm) (1113mm tall with spikes)
Drivers	1” beryllium dome tweeter (cast-aluminum waveguide), 2x 6.5” MACC-diaphragm woofers
Enclosure	2.5-way, bass-reflex, SILENT laminated cabinet
Impedance	6 ohms nominal, 4.5 ohms minimum
Sensitivity	87dB @ 2.83V/1m
Spinorama Preference Score	5.55
Spinorama Preference Score with Perfect Sub	6.96
Weight	70.5 lbs (32 kg) each

Check current price at House of Stereo ($19,995) →Search eBay for TAD Evolution 2 →

Links
- TAD Evolution 2 Official Page
Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements (spinorama.org) More from Audio Science Review →
Head-to-Head Comparisons

#25 Ascend Acoustics Sierra Titan Tower: $2,998 per pair Ascend Acoustics eBay

Pros: A SEAS Titan dome tweeter and dual 5.25 inch long throw woofers in a bamboo V-LAM tower reach a measured 58.6Hz extension point at a more accessible price than Ascend’s ribbon tweeter ELX line. The bass alignment Q of 0.72 keeps the low end reasonably well controlled. Backed by the same 7 year parts and labor warranty and hand matched +/-1.5dB pairs, each shipped with its own production line frequency response printout. Measured bass extension of 58.6Hz (-3dB).

Cons: Its listening window response is the least smooth of Ascend’s measured towers, trailing the pricier ELX Ribbon Tower. Sound power response falls off more steeply above the crossover than the ribbon version, so off axis and in room treble energy rolls off faster. Ascend sells direct only, with no dealer network or third party retailers for an in person audition.

Full Ascend Acoustics Sierra Titan Tower review and specifications →

Bass Extension (-10dB)	34.6Hz (measured, spinorama.org vendor data)
Bass Extension (-3dB)	58.6Hz (measured, spinorama.org vendor data)
Country	United States
DIY Kit	No
Dimensions	43”H x 7.5”W x 10.5”D (1092 x 190 x 267 mm)
Drivers	SEAS Titan dome tweeter, 1x 5.25” midrange (sealed sub-chamber), 2x 5.25” mineral filled polypropylene woofers
Enclosure	ported
Frequency Response	32-27,000Hz typical in-room (manufacturer)
Impedance	8 ohms nominal
Power Handling	300W continuous, 500W peak
Sensitivity	88dB @ 2.83V/1m in-room (manufacturer)
Spinorama Preference Score	6.05
Spinorama Preference Score with Perfect Sub	8.00
Warranty	7 years parts and labor
Weight	45 lbs (20.4 kg) each

Check current price at Ascend Acoustics ($2,998) →Search eBay for Ascend Acoustics Sierra Titan Tower →

Links
- Ascend Acoustics Sierra Tower V2 Official Page
Reviews, Comparisons and Sound Samples
- Manufacturer Measurements (spinorama.org)
Head-to-Head Comparisons

#26 KEF R11 Meta: $6,999.98 per pair Amazon eBay

Pros: CEA2034 spinorama shows a generally flat on-axis response with good directivity and very deep bass extension (F10 of 30Hz). Predicted in-room response is very smooth aside from the small 1-1.5kHz dip. The coaxial Uni-Q driver gives excellent, symmetric vertical directivity, unusual for a tower speaker. Distortion is incredibly low even down to 30Hz at 86dB SPL/1m, and stays low even at 96dB and 102dB SPL/1m: the reviewer found essentially no audible tonality change across that whole output range. Measured bass extension of 64Hz (-3dB).

Cons: A dip around 1-1.2kHz on-axis is attributed to a diffraction effect, and shows up as a smaller dip in the predicted in-room response. Horizontal beamwidth of about ±40 degrees is on the narrower side, though the transition from wide to constant directivity is smooth. Minimum impedance dips to 3.2 ohms around 580Hz, calling for an amplifier comfortable with a demanding load. 4-ohm nominal impedance overall.

Full KEF R11 Meta review and specifications →

Bass Extension (-10dB)	31Hz (measured, Audio Science Review)
Bass Extension (-3dB)	64Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	51”H x 12.2”W x 15.1”D (1295.4 x 309.9 x 383.5 mm)
Drivers	4 x 165 mm (6.5 in.) hybrid aluminium cone woofers, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) vented aluminium dome with MAT tweeter
Impedance	4 ohms
Sensitivity	89.5dB
Spinorama Preference Score	5.91
Spinorama Preference Score with Perfect Sub	7.32
Weight	80.5 lbs (36.5 kg) each
Woofer Cabinet	ported, rear

Check current price at Amazon ($3,499.99) →Search eBay for KEF R11 Meta →

Links
- Official KEF R11 Meta Website
Reviews, Comparisons and Sound Samples
- Audio Science Review KEF R11 Meta More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#27 Arendal 1961 Tower: $1,900 per pair Arendal Sound eBay

Pros: Exceptional output cleanliness for a slim tower: Erin measured under 1% THD to about 100Hz at 96dB/1m and only crossed 3% near 80Hz, while compression was better than several physically larger competitors. The response and listening window are broadly neutral, early-reflections and sound-power directivity are well controlled, and the waveguided dome supports stable imaging. A sealed HDF cabinet, four 5.5-inch woofers and a ten-year warranty provide serious theater-grade engineering in a tiny footprint. Measured bass extension of 62Hz (-3dB), with a measured sensitivity of 86.5dB.

Cons: Erin measured F3 at 62Hz and F10 at 43Hz, so the four woofers prioritize clean output over deep extension; a subwoofer remains necessary. Sensitivity is a moderate 86.5dB and impedance dips below four ohms, which may challenge budget AVRs even though a competent power amplifier has no issue. The optimal axis is roughly 5° above the tweeter and radiation begins narrowing around 1.3kHz, so seat height and toe-in deserve attention.

Full Arendal 1961 Tower review and specifications →

Bass Extension (-10dB)	43Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	62Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	33”H x 6.4”W x 11.2”D (837.5 x 163 x 285 mm) (without feet)
Drivers	Four 5.5-inch woofers; 28mm waveguided soft dome
Enclosure	Sealed HDF
Impedance	4 ohms nominal; dips below 4 ohms (measured, Erin’s Audio Corner)
Sensitivity	86.5dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	4.83
Spinorama Preference Score with Perfect Sub	7.25
Weight	39.5 lbs (17.9 kg) each

Check current price at Arendal Sound ($1,900) →Search eBay for Arendal 1961 Tower →

Links
- Official Arendal 1961 Tower page
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#28 Morel Avyra 633: $2,000 per pair eBay

Pros: A 2.5-way floorstanding tower with two 6” mid-woofers (each with an unusually large 3” voice coil for better power handling) and a dome tweeter; the bottom woofer only covers up to about 250Hz while the top woofer runs all the way to the 2.2kHz crossover point. Easy to drive at a nominal 4 ohms (minimum 3.8 ohms). On-axis linearity measures within about ±2.25dB: genuinely impressive for a tower in this class, enough that the reviewer said he’d have guessed a $4,000-5,000 per pair price just from the look and the data alone. F3 of about 50Hz and F10 of about 32Hz give reasonable kick-drum-level bass without a subwoofer. Wide horizontal radiation around ±70° with good continuity outside the treble region. Harmonic distortion stays under 1% THD to about 100Hz at both 86dB and 96dB, and using an 80Hz subwoofer crossover barely changes midrange distortion: a sign the drive units themselves are good quality rather than excursion-limited. About 20dB of usable dynamic range. No through-holes for spikes, so no risk of dropped hardware during setup. Measured bass extension of 50Hz (-3dB), with a measured sensitivity of 86.5dB.

Cons: A bit bright out of the box: extra tweeter energy in the 4-7kHz region (which also shows up as nonlinearity in the early-reflections directivity data, making it harder to fully correct with EQ) reflects off nearby sidewalls and can sound tipped-up or edgy; a single EQ band (about 4.4kHz, -2dB, Q of 1) or absorption panels placed 60-80° off-axis on the sidewalls resolves it. Best aimed directly at the listener rather than toed out, since the top end already rolls off a little at wider angles. Imaging loses a bit of precision specifically in that lower-treble region. Multitone distortion exceeds the reviewer’s 3% comfort threshold at higher output. Real bass extension below 50Hz still needs a subwoofer. Not the same speaker as the Parts Express “Solstice” DIY kit despite surface similarities: different tweeter, different (ported vs. transmission line) enclosure, and measurably different woofers.

Full Morel Avyra 633 review and specifications →

Bass Extension (-10dB)	32Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	50Hz (measured, Erin’s Audio Corner)
Country	Israel
Crossover Frequency	250Hz, 2.2kHz
DIY Kit	No
Dimensions	38.7”H x 12.8”W x 12.2”D (982 x 326 x 310 mm)
Drivers	Dome tweeter, two 6” mid-woofers (3” voice coil)
Frequency Response	25Hz - 20kHz (±3dB, manufacturer specified)
Impedance	4 ohms nominal (3.8 ohms minimum, measured, Erin’s Audio Corner)
Recommended Power	200-1000W
Sensitivity	86.5dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.43
Spinorama Preference Score with Perfect Sub	7.20
Weight	48.5 lbs (22 kg) each
Woofer Cabinet	ported

Search eBay for Morel Avyra 633 →

#29 Magico A5: $24,800 per pair Magico Dealer Network eBay

Pros: Manufacturer Spinorama data shows a narrow 1.7dB reference band, 0.524 listening-window smoothness, 0.324dB on-axis average absolute deviation, and a 2.92 sound-power directivity-index standard deviation. Bass measures 49.5Hz at -3dB, 39.1Hz at -6dB, and 25.1Hz at -12dB; preference scores are 5.65 without a subwoofer and 7.49 with one. The rigid sealed aluminum enclosure, dedicated midrange, three 9-inch woofers, and beryllium tweeter support high output without ports. Measured bass extension of 49.5Hz (-3dB).

Cons: Despite three 9-inch woofers, the measured -3dB point is only 49.5Hz and the 1.17 low-frequency Q indicates a pronounced sealed alignment, so subwoofers still help with the deepest bass. The $24800/pair price is extremely high, the data is manufacturer supplied rather than an independent ASR or Erin measurement, and the design needs substantial amplifier power.

Full Magico A5 review and specifications →

Bass Extension (-10dB)	approximately 30Hz (measured, spinorama.org)
Bass Extension (-3dB)	49.5Hz (measured, spinorama.org)
DIY Kit	No
Dimensions	44.8”H x 10.5”W x 14.9”D (1137 x 267 x 378.5 mm)
Drivers	Three 9-inch woofers; 5-inch midrange; 28mm beryllium tweeter
Enclosure	Sealed aluminum
Impedance	4 ohms nominal
Sensitivity	88dB (manufacturer specified, 2.83V/1m)
Spinorama Preference Score	5.65
Spinorama Preference Score with Perfect Sub	7.49
Weight	179.9 lbs (81.6 kg) each

Check current price at Magico Dealer Network ($24,800) →Search eBay for Magico A5 →

Links
- Official Magico A5 Product Page
Reviews, Comparisons and Sound Samples
- Magico Measurements (spinorama.org)
Head-to-Head Comparisons
- Magico A5 vs TAD Evolution 2
- Magico A5 vs JBL 4369

#30 JBL Studio 698: $1,499.90 per pair Crutchfield eBay

Older model: the JBL Studio 590 (ranked lower, rated 2.8/5).

Pros: High-Definition Imaging (HDI) horn waveguide paired with a 1” compression driver provides excellent high-frequency directivity control and seamless acoustic handoff to the 6” PolyPlas midrange. Dual 8” PolyPlas woofers deliver robust low-end authority with solid bass extension down to an F3 of 53Hz and F10 of 34Hz. High voltage sensitivity (90dB SPL at 2.83V/1m) and clean power handling provide effortless dynamic headroom and low distortion for home theater and music listening. Measured bass extension of 53Hz (-3dB), with a measured sensitivity of 90dB.

Cons: Measured response exhibits a prominent mid-bass emphasis bump around 80Hz that can sound overly thick or chesty in smaller rooms without DSP EQ. Treble response lacks top-octave ‘air’ above 12kHz compared to high-end dome or ribbon tweeters. Physically large, heavy cabinet (35.8 kg per speaker) requires careful room placement and a wide acoustic footprint.

Full JBL Studio 698 review and specifications →

Bass Extension (-10dB)	34Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	53Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	41.7”H x 11.8”W x 15.7”D (1058 x 300 x 400 mm)
Drivers	1 in. High-Definition Imaging compression driver, 6 in. PolyPlas midrange, dual 8 in. PolyPlas woofers
Impedance	6 ohms nominal (4.1 ohms minimum above 80Hz, measured by Erin’s Audio Corner)
Sensitivity	90dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	4.20
Spinorama Preference Score with Perfect Sub	6.14
Weight	78.9 lbs (35.8 kg) each
Woofer Cabinet	ported, rear

Check current price at Crutchfield ($1,499.90) →Search eBay for JBL Studio 698 →

#31 JBL HDI-3600: $3800 per pair Audio Advice eBay

Pros: CEA2034 spinorama shows a fairly even on-axis response and flat overall frequency response, with high 90dB sensitivity and very low distortion through the midrange. Triple 6.5” Advanced Aluminum Matrix woofers and a 1” compression driver in JBL’s HDI waveguide. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 89.5dB.

Cons: A wide shelving-down above 2kHz affects the in-room response, and vertical dispersion is a bigger issue than horizontal: the reviewer noted the dip is wider here than on the smaller HDI-1600, making it more audible. Narrow vertical sweet spot means careful listener-height positioning matters more than usual.

Full JBL HDI-3600 review and specifications →

Bass Extension (-10dB)	62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review)
Bass Extension (-3dB)	78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review)
DIY Kit	No
Dimensions	40.5”H x 10.2”W x 13.5”D (1029 x 260 x 343 mm)
Drivers	2410H-2 1” compression driver, 3x 6.5” Advanced Aluminum Matrix woofers
Frequency Response	38Hz - 30kHz (+/-3dB) (Manufacturer specified)
Impedance	4 ohms nominal
Sensitivity	89.5dB (2.83V/1m, measured, Audio Science Review)
Spinorama Preference Score	4.64 (spinorama.org)
Spinorama Preference Score with Perfect Sub	6.95 (spinorama.org)
Weight	61.7 lbs (28 kg) each
Woofer Cabinet	ported, dual rear-firing

Check current price at Audio Advice ($3800) →Search eBay for JBL HDI-3600 →

Links
- Official JBL HDI-3600 Product Page
Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#32 Perlisten R7t: $9,990 per pair Audio Advice eBay

Pros: The flagship of Perlisten’s R-series towers, a 4-way design with four 165mm woofers reaching a measured -3dB extension point of 49.1Hz. The Harman in-room extension estimate (lfx) is a deeper 38Hz, since that metric accounts for room gain the anechoic -3dB figure doesn’t. Sensitivity of 90.0dB makes it easy to drive at high output.

Cons: Listening-window smoothness (0.567) and sound-power smoothness (0.380) are middling for a flagship-tier tower, with on-axis deviation of 0.341dB, a fairly pronounced -0.29dB per octave downward tilt, and a predicted in-room smoothness of just 0.44. It’s sold only through specialty AV dealers at a per-unit price.

Full Perlisten R7t review and specifications →

Bass Extension	27Hz in bass-reflex mode
Bass Extension (-3dB)	49.1Hz (manufacturer spinorama data, vented configuration)
Country	Designed in the United States (Verona, Wisconsin)
DIY Kit	No
Dimensions	49.9”H x 9.1”W x 13.8”D (1268 x 230 x 350 mm)
Drivers	3x 26mm silk dome (tweeter + 2 midrange), 4x 165mm (6.5”) HPF woofers
Enclosure	4-way, bass-reflex / acoustic-suspension convertible
Impedance	4 ohms nominal, 3.1 ohms minimum
Sensitivity	90.0dB @ 2.83V/1m
Spinorama Preference Score	6.31
Spinorama Preference Score with Perfect Sub	8.12
Weight	105.8 lbs (48.0 kg) each

Check current price at Audio Advice ($4,995) →Search eBay for Perlisten R7t →

Links
- Perlisten R7t Official Page
Reviews, Comparisons and Sound Samples
- Manufacturer Measurements (spinorama.org)
Head-to-Head Comparisons

#33 Polk Audio Reserve R700: $2,398 per pair Amazon eBay

Pros: Three-way design with a 1” ring radiator tweeter, 6.5” mid-range, and dual 8” mid-bass drivers in a ported, down-firing cabinet. On-axis frequency response holds within about ±2dB across most of its range, with genuinely deep bass extension (F3 40Hz) reaching into the mid-30s Hz in-room. Wide horizontal radiation of about ±70°, giving a strong, enveloping stereo width and stage-extension effect on well-recorded tracks. Good low-level dynamics: solid bass thump at quiet listening volumes without over-accentuation. Strong distortion and compression control through the bass and midrange. Real nominal impedance closer to 4 ohms than the marketed 8 ohms, so with the right amplifier it can be driven hard: a $3,000 two-channel integrated brought out significantly more life than a budget $300 unit could. Excellent value at its roughly $1199/pair, ranking among the reviewer’s top picks under $2,500; outperforms the similarly-priced Klipsch RP-8000F II in bass extension and overall smoothness. Measured bass extension of 40Hz (-3dB), with a measured sensitivity of 87.5dB.

Cons: Compression in the high frequencies rises sharply between 96dB and 102dB output: a real limitation only at very high volumes (around 100dB at 3 meters), but a clear step down from pricier ($5,000+) towers. Horizontal directivity mismatch around 4-5kHz, where the tweeter flares wider than the midrange, can sound a bit forward, especially noticeable when toed out further into the room; sidewall absorption or curtains help tame it. Harmonic distortion crosses the reviewer’s 3% threshold around 7kHz at 96dB output, possibly contributing to that same forward quality at high volume. Narrow vertical sweet spot (about ±15° from the tweeter axis), typical of non-coaxial tower designs: more of a consideration for multi-row home theater seating than single-row listening. The ring-radiator tweeter narrows noticeably above about 7-8kHz, and toeing the speaker out more than about 20° causes the top end to fall off quickly. Needs at least 2 feet of clearance from the rear wall to avoid boomy, exaggerated bass, since it lacks the bass-shelf tuning some rivals use to allow closer wall placement. Compared to the pricier KEF R5 Meta, has narrower horizontal (and much narrower vertical) directivity, so seating flexibility is more limited.

Full Polk Audio Reserve R700 review and specifications →

Bass Extension (-10dB)	31Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	40Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	45”H x 12.6”W x 16.9”D (1143.8 x 320.7 x 428.3 mm)
Drivers	2x 8” polypropylene cone woofers, 1x 6.5” turbine cone midrange, 1x 1” Pinnacle ring radiator tweeter
Impedance	4 ohms nominal, 3.5 ohms minimum (measured above 80Hz, Erin’s Audio Corner)
Sensitivity	87.5dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner)
Spinorama Preference Score	6.38
Spinorama Preference Score with Perfect Sub	7.83
Weight	102.1 lbs (46.3 kg)
Woofer Cabinet	ported, down-firing

Check current price at Amazon ($1,199.00) →Search eBay for Polk Audio Reserve R700 →

#34 PSB Imagine T65: $2,699 per pair PSB Speakers eBay

Pros: Three-way design with dual 6.5” woven carbon fiber woofers delivers genuinely strong, extended low end for a $2699 tower: among the better performers Erin has measured in this price class. Distortion shows a clean second-order character with clear separation from third-order all the way up to 96 dB, indicating a well-controlled motor. Compression data shows enhancement rather than compression below about 50-60 Hz, so the bass can sound louder as you turn it up rather than choking off. Wide, forgiving vertical listening window (about ±25°) thanks to the 3-way layout, giving more seating and placement flexibility than most towers. Plenty of dynamic headroom for home theater use or a two-channel system: 100W drove it comfortably in Erin’s room. Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 85.1dB.

Cons: Noticeable dip in the midrange/crossover region that Erin flagged as affecting dialogue and vocal clarity, though he notes a couple bands of EQ smooths it out. Some horizontal dispersion mismatch (about 10-15° of ballooning between 1-3 kHz) between the midrange and tweeter can add extra perceived attack or detail if your room’s sidewalls are reflective. Dips to 4 ohms, so it wants an amplifier comfortable driving a 4-ohm load. Distortion climbs above 3% around 60 Hz at 96 dB, though it’s benign second-order distortion.

Full PSB Imagine T65 review and specifications →

Bass Extension (-10dB)	26Hz (measured average, Erin’s Audio Corner)
Bass Extension (-3dB)	47Hz (measured average, Erin’s Audio Corner)
Crossover Frequency	600Hz & 2000Hz, 4th-order Linkwitz-Riley
DIY Kit	No
Dimensions	38.8” x 8.4” x 13.5” (986 x 213 x 343 mm)
Drivers	1” titanium dome tweeter, 5.25” woven carbon fiber midrange, 2x 6.5” woven carbon fiber woofers
Enclosure	Vented: dual rear slot ports, individual woofer chambers
Frequency Response	28Hz - 20kHz (±1.5dB, manufacturer specified)
Impedance	8 ohms nominal (3.3 ohms minimum measured by Erin’s Audio Corner; manufacturer specifies 4 ohms minimum)
Recommended Power	20-200W
Sensitivity	85.1dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	5.29
Spinorama Preference Score with Perfect Sub	6.51
Weight	44.1 lbs (20 kg) each

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#35 Emotiva Airmotiv T2+: $999 per pair Discontinued Emotiva eBay

Newer model: the Emotiva Airmotiv XT2. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.

Pros: High-value three-way tower with strong output and unusually deep usable sealed-room bass for the price. Erin measured F3 at 62Hz and F10 at 32Hz, with sensitivity just under 90dB/2.83V/1m. Dual 8-inch woven-fiber woofers relieve the 5.25-inch midrange, and the 32mm folded-ribbon tweeter provides broad horizontal coverage. Approximately +/-2.5dB response linearity, solid cabinet bracing and low compression allow substantial playback levels; the gradual low-frequency roll-off integrates well with either room gain or a subwoofer. Measured bass extension of 62Hz (-3dB), with a measured sensitivity of 89.5dB.

Cons: The nominal 4-ohm system approaches 3 ohms near 100Hz in Erin’s measurement, so a high-current amplifier is preferable. Horizontal and especially vertical directivity through the midrange/tweeter transition is less uniform than the best waveguided or coaxial designs; listener height and nearby reflections matter, and EQ cannot correct the narrowing mismatch. The large rear-ported cabinet needs placement clearance, and its deep F10 should not be confused with flat 30Hz output at cinema levels. Discontinued.

Full Emotiva Airmotiv T2+ review and specifications →

Bass Extension (-10dB)	32Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	62Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	42.7”H x 12.2”W x 12.3”D
Drivers	32mm folded-ribbon tweeter; 5.25” midrange; dual 8” woofers
Impedance	Approximately 3 ohms minimum near 100Hz (measured, Erin’s Audio Corner)
Sensitivity	Approximately 89.5dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.56
Spinorama Preference Score with Perfect Sub	7.14
Weight	56.9 lbs (25.8 kg) each
Woofer Cabinet	ported, rear

Check current price at Emotiva ($999) →Search eBay for Emotiva Airmotiv T2+ →

#36 ELAC Debut 3.0 DF63: $1,298 per pair Amazon eBay

Pros: Three-driver floorstanding layout: two 6” dedicated midbase drivers plus a separate 6” mid-range driver (confirmed by measuring different driver impedance/inductance) and a 1” dome tweeter, each woofer given its own stuffed chamber inside the cabinet. The dedicated midrange driver keeps distortion low even at higher output, avoiding the intermodulation grain typical of two-way bookshelf designs. The waveguide keeps high-frequency directivity well controlled, and overall horizontal directivity is good up to about 2kHz. Harmonic distortion looks good at both 86dB and 96dB, and multitone distortion stays below the reviewer’s 3% threshold. A shallow bass rolloff (F3 71Hz, F10 29Hz) lets it extend fairly low without a hard cutoff. Preferred by the reviewer over the similarly-priced Polk R500 (too much high-frequency narrowing, less neutral) and considered ahead of the Polk R700 as well. Measured bass extension of 71Hz (-3dB), with a measured sensitivity of 86.6dB.

Cons: A genuine measured resonance around 200-300Hz (visible in frequency response, impedance, and group delay) causes an audible “droning” coloration on female vocals. A mild peak around 10kHz makes shakers and similar high-frequency percussion jump too far forward in the mix; needed about 2dB of EQ to tame in testing. A dip in the 1-3kHz range gives the speaker a warm, slightly veiled character: the reviewer suspects the tweeter crossover point (around 2-3kHz) is set a bit high and could be lowered to fill this in. Directivity shows a noticeable handoff mismatch around 2.5kHz where the midrange driver hands off to the tweeter, though it’s minor at the -6dB point. Vertical directivity is narrower than horizontal, so listeners need to stay close to the tweeter axis. Low EPDR (about 1.5 ohms minimum) means a Class AB amplifier should be well-ventilated. Best positioned pointed directly at the listener and closer to the front wall: toeing it out into the room causes too much high-frequency rolloff.

Full ELAC Debut 3.0 DF63 review and specifications →

Bass Extension (-10dB)	29Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	71Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	43.1”H x 7.7”W x 10.6”D (1094.7 x 195.6 x 269.2 mm)
Drivers	Two 6.5” Aramid Fiber woofer, 6.5” Aramid Fiber midrange, 1” Aluminum Dome tweeter
Impedance	6 ohms nominal (3.4 ohms minimum, measured, Erin’s Audio Corner)
Sensitivity	86.6dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.83
Spinorama Preference Score with Perfect Sub	7.33
Weight	58.2 lbs (26.4 kg) each
Woofer Cabinet	ported, rear

Check current price at Amazon ($649.00) →Search eBay for ELAC Debut 3.0 DF63 →

#37 Polk Reserve R500: $1,259.98 per pair Amazon eBay

Pros: Dual 5.25” midwoofers paired with a ring radiator tweeter in a floorstanding tower design. Surprisingly neutral overall compared to Polk’s smaller bookshelf models: notably more even-handed than the brighter-sounding R200 the reviewer tested previously. Good linearity on-axis, within about -3/+2dB. Sensitivity close to 86dB, easily driven to adequate levels in a small-to-medium room with a 100W-capable amplifier. Takes very well to EQ: a single band of correction (about a 2dB cut around 4-5kHz) resolves the main tonal issue and transforms the sound. Dynamic range and compression performance is solidly “medium,” holding up fine through about 20dB of level increase before higher-frequency and bass output start to taper at extreme volumes. Measured bass extension of 51Hz (-3dB), with a measured sensitivity of 86.2dB.

Cons: A bump around 4-6kHz gives a “shouty,” mildly sibilant quality in the lower treble. Counterintuitively, toeing the speaker out to reduce brightness makes this worse rather than better, since the ring-radiator tweeter’s directivity narrows rapidly above about 6-7kHz: pointed on-axis retains enough top-end air to balance the bump, but toed away that air drops off and the shoutiness stands out more. Bass is adequate for its 5.25” woofers but lacks real weight below about 40-50Hz; a subwoofer is still needed for movies and bass-heavy music. A cabinet resonance around 160-170Hz subtracts from rather than adds boom to the mid-bass region. Vertical listening window is fairly narrow: sitting more than about 10-20° above or below the tweeter axis causes a suckout in the 2-5kHz range, reducing clarity and attack. Multitone distortion ramps up noticeably around 1kHz, and crossing over to a subwoofer at 80Hz doesn’t meaningfully reduce it: likely a surround-related effect rather than excursion-related. Without applying corrective EQ, the reviewer says the 4-6kHz brightness would make it harder to live with day to day.

Full Polk Reserve R500 review and specifications →

Bass Extension (-10dB)	33Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	51Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm)
Drivers	Two 5.25” Turbine Cone woofer, 1” Pinnacle Ring Radiator tweeter
Impedance	4.1 ohms minimum above 80Hz (measured, Erin’s Audio Corner; 8 ohms nominal per manufacturer)
Sensitivity	86.2dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	5.86
Spinorama Preference Score with Perfect Sub	7.44
Weight	39.2 lbs (17.8 kg) each
Woofer Cabinet	ported, rear

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#38 Linkwitz Lab LXmini: $505.00 per pair Madisound LXmini Kit eBay

Pros: Open-baffle/dipole upper driver and cylindrical woofer enclosure create a very large, open soundstage with unusually little cabinet signature. Erin praised the stable, well-controlled directivity: despite using a nominal full-range upper driver, off-axis response retains composure beyond its beaming region and the directivity index is smooth enough for reliable DSP voicing. Imaging can be precisely adjusted through placement and toe angle. Erin measured F3 at 50Hz and F10 at 33Hz, impressive for the narrow footprint, and found the system satisfying for much music without a subwoofer. The supplied miniDSP configuration is readily editable; broad shelf correction near 550Hz and a handful of narrow filters can make the response substantially more linear. The kit is mechanically simple, highly customizable and based on well-documented Linkwitz engineering. Measured bass extension of 50Hz (-3dB).

Cons: This is not a conventional passive pair: it requires a construction-plan license, assembly, miniDSP, four matched amplifier channels and careful gain/setup work, so the apparent kit price is not the complete system cost. Output below about 50Hz lacks kick-drum weight and benefits from subwoofers. Erin found rising second-order distortion near 1.5kHz on both samples, accompanied by an impedance blip that may indicate an enclosure reflection or driver-compliance effect. At high output the system behaves as if electronically limited even with miniDSP limiting bypassed, reducing bass and subjective dynamics. Default voicing is less linear than expected, with irregularities above roughly 2kHz, though its controlled directivity makes these correctable. Dipole rear radiation demands meaningful distance from the front wall and makes placement less flexible than a box speaker.

Full Linkwitz Lab LXmini review and specifications →

Amplifier Power	Four channels, 50W/channel minimum with identical voltage gain
Bass Extension (-10dB)	33Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	50Hz (measured, Erin’s Audio Corner)
Crossover Frequency	700Hz LR2, active DSP
DIY Kit	Yes
Drivers	6.5” SEAS woofer in sealed tube, 4” SEAS full-range dipole driver
Impedance	4 ohms upper driver / 8 ohms woofer nominal (separate actively bi-amplified loads; manufacturer specified)
Sensitivity	85dB upper driver / 87dB woofer @ 1W/1m (individual driver specifications; complete active-DSP system sensitivity is not directly specified)
Spinorama Preference Score	3.89 (measured, spinorama.org)
Spinorama Preference Score with Perfect Sub	5.77 (measured, spinorama.org)
Woofer Cabinet	sealed cylindrical enclosure; open-baffle upper driver

Check current price at Madisound LXmini Kit ($505.00) →Search eBay for Linkwitz Lab LXmini →

#39 PS Audio Aspen FR10: $12000 per pair PS Audio eBay

Pros: Distinctive driver layout: two 6” mid-bass drivers plus three 6x9” passive radiators, an 8” planar ribbon mid-range, and a 2.5” planar ribbon tweeter, with the woofers placed low near the floor to counteract typical floor-bounce cancellation in the mid-bass/lower-midrange handoff. Deliberately shelved bass response around 150Hz allows placement closer to the rear wall than typical, without the usual boominess. Extremely wide horizontal dispersion (the -6dB point isn’t reached until about 80-85° off-axis), giving a wide, enveloping soundstage that stays consistent rather than narrowing unevenly at different frequencies. Passed multiple stereo-imaging tests with precise placement despite the wide radiation, keeping instruments distinctly separated even in complex, heavily panned tracks. Exceptionally low multitone distortion at high frequency: among the best the reviewer has measured on any speaker. Bass extends smoothly to an F3 of 47Hz and F10 of 28Hz, potentially usable without a subwoofer for material that doesn’t dig much below 40Hz. Shows output enhancement rather than compression below about 50Hz even at high volume, adding extra punch and attack to bass transients. Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 84.4dB.

Cons: At roughly $12000/pair, expectations are high, and the reviewer found some measured shortfalls relative to that price. A scoop around 600Hz slightly thins out vocal fullness; EQ can restore some body there. A narrow but pronounced dip around 6-7kHz shows up in measurements, though EQ didn’t meaningfully improve it in testing and the reviewer says he’d rather have a dip than a peak in that sibilance-prone region. On-axis, the treble reads as mildly elevated (though far less than some rivals like Martin Logan or Focal); needs about 20° of toe-out, per the manufacturer’s own recommendation, to sound properly balanced and take on a warmer character. Sidewall acoustic treatment should be avoided, since the speaker’s wide, room-filling sound depends on that sidewall interaction, limiting setup flexibility in treated rooms. A minor resonance-like anomaly appears around 800Hz, and some compression shows up at the highest frequencies (around 12kHz) under extreme output testing, though unlikely to be audible in real listening. Large and heavy floorstander (about 76 lbs each, 41” tall).

Full PS Audio Aspen FR10 review and specifications →

Bass Extension (-10dB)	28Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	47Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	41.5”H x 11.8”W x 16.3”D (1054.1 x 298.5 x 412.8 mm)
Drivers	2x 6.5” carbon fiber cone woofers, 1x 8” planar magnetic ribbon midrange, 1x 2.5” planar magnetic ribbon tweeter + 3x passive radiators
Impedance	4 ohms nominal, 3.6 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	84.4dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	4.08
Spinorama Preference Score with Perfect Sub	5.40
Weight	119 lbs (54 kg)
Woofer Cabinet	passive radiator

Check current price at PS Audio ($12000) →Search eBay for PS Audio Aspen FR10 →

Links
- Official PS Audio Aspen FR10 Website
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#40 Infinity Primus 360: $650 per pair Discontinued eBay

Pros: A three-way tower from 2005 (two 6.5” mid-woofers, a 4” mid-range, and a 0.75” dome tweeter, 8 ohms nominal) that holds up remarkably well by modern measurement standards: on-axis linearity is within about ±2dB, and the listening window stays consistent out to roughly ±30° horizontal and ±10° vertical off the mid-range axis. Horizontal directivity is well controlled out to about ±75° before tonality starts to drift, meaning the reflected sound in a room stays close in character to the direct sound: a speaker that takes EQ well without fighting itself. Harmonic distortion measures low at both 86dB and 96dB, and multitone distortion stays under the reviewer’s 3% threshold. Silky, smooth midrange with a rich lower-midrange/upper-bass character. No mechanical issues or surround degradation found in a 20-year-old pair, and a second unit measured within about 1-1.5dB of the first, suggesting good long-term consistency for the design. Measured bass extension of 53Hz (-3dB), with a measured sensitivity of 89.4dB.

Cons: Manufacturer-spec sensitivity of 93dB runs about 3-4dB optimistic versus the measured 89.4dB average. Bass output drops off fairly quickly below about 50Hz in-room (F3 53Hz, F10 37Hz), so a subwoofer is needed for real low-end extension. Resonances show up around 170Hz, 220Hz, and 350Hz. On-axis, the lower treble can sound a bit bright or sibilant when the speaker is aimed directly at the listener; toeing out about 10-15° (rather than the more extreme 30°) gave the best balance, and some sidewall acoustic absorption further tamed a 4-5kHz peak. Placed close to the rear wall, bass gets boomy: pulling the speakers out about a foot resolves most of it, with roughly 1.5 feet from the wall as a good compromise between bass character and typical room aesthetics. Straying beyond about 25° above or below the mid-range axis introduces audible suckout. No longer in production, so it’s a used/secondhand purchase only.

Full Infinity Primus 360 review and specifications →

Bass Extension (-10dB)	37Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	53Hz (measured, Erin’s Audio Corner)
Crossover Frequency	350Hz & 3.3kHz, 24dB/octave
DIY Kit	No
Dimensions	39” x 8.2” x 13” (990 x 208 x 330 mm)
Drivers	Two 6.5” mid-woofers, 4” mid-range, 0.75” dome tweeter
Frequency Response	38Hz - 20kHz (±3dB, Manufacturer specified)
Impedance	8 ohms nominal, 3.5 ohms minimum (measured, Erin’s Audio Corner)
Recommended Power	10-200W
Sensitivity	89.4dB (measured, Erin’s Audio Corner; 93dB manufacturer specified)
Spinorama Preference Score	4.97
Spinorama Preference Score with Perfect Sub	7.10
Weight	48.5 lbs (22 kg) each

Search eBay for Infinity Primus 360 →

#41 Q Acoustics 5040: $2,472.98 per pair Amazon eBay

Pros: C3 (Continuous Curved Cone) driver profile technology provides smooth midrange integration, controlled cone breakup, and improved bass damping. High voltage sensitivity (91.5dB SPL at 2.83V/1m) allows loud listening with low-to-moderate amplifier wattage. Cabinet features Point-to-Point (P2P) internal bracing and Helmholtz Pressure Equalizer (HPE) tubes to suppress internal standing waves and panel vibrations. Measured bass extension of 70Hz (-3dB), with a measured sensitivity of 91.5dB.

Cons: Free-field frequency response exhibits a noticeable mid-bass scoop around 200Hz (~6dB lower than mean SPL), causing an F3 of 70Hz (F10 of 39Hz) in open space and requiring boundary placement (11-22 inches from front wall) to reinforce upper bass output. Measurements indicate an enclosure resonance near 300Hz visible in sound power data. Minimum impedance drops to 3.0 ohms, demanding a stable 4-ohm rated amplifier despite high sensitivity.

Full Q Acoustics 5040 review and specifications →

Bass Extension (-10dB)	39Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	70Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	38.1”H x 11.5”W x 14.2”D (967 x 293 x 361 mm)
Drivers	0.88 in. decoupled dome tweeter, twin 5.0 in. C3 Continuous Curved Cone woofers
Impedance	6 ohms nominal (3.0 ohms minimum, measured by Erin’s Audio Corner)
Sensitivity	91.5dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	3.80
Spinorama Preference Score with Perfect Sub	6.41
Weight	39.7 lbs (18.0 kg) each
Woofer Cabinet	ported, rear

Check current price at Amazon ($1,236.49) →Search eBay for Q Acoustics 5040 →

Links
- Official Q Acoustics 5040 Website
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Q Acoustics 5040 Floorstanding Speaker Review More from Erin’s Audio Corner →
- Erin’s Audio Corner Measurements (spinorama.org)
Head-to-Head Comparisons

#42 Klipsch Forte IV: $5,499.98 per pair Amazon Crutchfield eBay

Pros: Three-way heritage design: a 1” titanium tweeter and 1.75” compression driver for the midrange mated to a 12” woofer, plus a 15” passive radiator for extra bass reinforcement. Genuinely resonance-free cabinet, a clear improvement over the notably boomy, resonant Heresy 4 in the same lineup. Surprisingly wide, expansive soundstage that beat both the Heresy 4 and a KEF LS50 Wireless 2 in direct comparison: images occasionally appeared several feet outside the physical speaker location. Deeper bass extension than the Heresy 4 (F3 of 82Hz, about 10Hz lower). Distortion measures well below 1% at 86dB and stays mostly within 1% even at 96dB. Comes as a factory-matched serial-numbered pair, backed by an unusually generous 10-year warranty. Mostly above 4 ohms impedance, so it’s compatible with AVRs, solid-state, or tube amplifiers. More neutral overall than other Klipsch models the reviewer has tested, making it a reasonable pick for listeners who already like the “Klipsch sound” but want something more balanced. Measured bass extension of 82Hz (-3dB), with a measured sensitivity of 93.8dB.

Cons: Contrary to the classic Klipsch reputation for being forward and bright, this model is actually somewhat recessed in the 1.5-4kHz “presence” region, which can make some tracks sound dull or lacking in detail. A peak around 6kHz reads as sibilant and “painful” when seated exactly on the tweeter axis; sitting a bit above that axis reduces it somewhat. Klipsch’s marketed 99dB sensitivity figure is an in-room rating that assumes 3-6dB of boundary gain: anechoic sensitivity measures closer to 94dB, which the manufacturer does disclose but can still mislead buyers comparing spec sheets. Radiation width isn’t consistent across all frequencies: a noticeable notch around 2-3kHz interrupts otherwise wide dispersion, which can cause a fundamental tone and its harmonics to image in slightly different places in the soundstage. Uses shallow low-pass crossover slopes (despite Klipsch’s steep-crossover marketing, which applies only to the high-pass side), likely contributing to some of the measured dips and possible cone-breakup artifacts. Some compression shows up around the midrange crossover point at very high output (102dB), though likely only audible at extreme volumes. At around $5500/pair, a significant investment, and still needs a subwoofer for material extending below about 50Hz.

Full Klipsch Forte IV review and specifications →

Bass Extension (-10dB)	39Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	82Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	36”H x 16.5”W x 13”D (914.4 x 419.1 x 330.2 mm)
Drivers	1x 12” (305mm) fiber-composite woofer + 15” passive radiator, 1x 1.75” compression driver midrange on horn, 1x 1” titanium compression tweeter on horn
Impedance	8 ohms
Sensitivity	93.8dB (measured average, Erin’s Audio Corner; manufacturer rates 99dB in-room / ~94dB anechoic)
Spinorama Preference Score	3.78
Spinorama Preference Score with Perfect Sub	5.72
Weight	117.3 lbs (53.2 kg)
Woofer Cabinet	passive radiator

Check current price at Amazon ($5,499.98) →Check current price at Crutchfield →Search eBay for Klipsch Forte IV →

#43 Revival Audio Atalante 5: $5000 per pair Don Better Audio eBay

Pros: Strong, punchy mid-bass at moderate-to-loud volumes with no port chuffing or excursion strain even pushed hard: a rarity at this price. Good bass extension for the class (F3 42Hz, F10 30Hz), reaching about 40Hz in-room with authority. Distortion is very low (under 1% through most of the range) and compression is well controlled outside the extreme top octave. Striking build and looks, with a large 12” woofer and 3” dome midrange that give real visual presence. Measured bass extension of 42Hz (-3dB), with a measured sensitivity of 88.6dB.

Cons: A pronounced on-axis peak around 4kHz creates real glare/shoutiness on some material, and combined with a mid-bass emphasis that overshadows lower-midrange detail at higher volumes, tonal balance can feel inconsistent: the reviewer described some tracks as sounding notably different from the neutral mix. Imaging precision is looser than more directivity-controlled designs (coaxial or waveguide speakers), with instrument placement sounding a bit fuzzy rather than pinpoint. Horizontal directivity fluctuates between about 40-60 degrees rather than staying constant, worst right around the mid/tweeter crossover. Needs real room to breathe: at least 2-3 feet from the rear wall in ported mode (about a foot if sealed via the included port bungs), and benefits from 5-10 degrees of toe-out to tame the top end.

Full Revival Audio Atalante 5 review and specifications →

Bass Extension (-10dB)	30Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	42Hz (measured, Erin’s Audio Corner)
Country	France
Crossover Frequency	450Hz, 3.5kHz
DIY Kit	No
Dimensions	28” x 16.5” x 14” (710 x 420 x 355 mm)
Drivers	1.1” (28mm) dome tweeter, 3” dome midrange, 12” woofer
Frequency Response	28Hz - 22kHz -3dB (Manufacturer specified)
Impedance	4 ohms nominal (3.2 ohms minimum, measured above 80Hz, Erin’s Audio Corner)
Power Handling	30-200W recommended
Sensitivity	88.6dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	5.11
Spinorama Preference Score with Perfect Sub	6.69
Weight	72.8 lbs (33 kg)
Woofer Cabinet	3-way, switchable ported/sealed via port bungs

Check current price at Don Better Audio ($5000) →Search eBay for Revival Audio Atalante 5 →

Links
- Official Revival Audio Atalante 5 Product Page
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#44 KEF Q11 Meta: $2,499.98 per pair Amazon eBay

Pros: Three-way tower design with a coaxial layout: a 3/4” aluminum dome tweeter (with KEF’s Metamaterial Absorption Technology behind it) mounted at the center of a 4” mid-range, plus three 6.5” bass drivers. Extremely linear estimated in-room response when placed correctly, thanks to a deliberately declining on-axis response paired with well-controlled directivity: a technically sound design philosophy, even though it reads as “dark” in raw anechoic on-axis measurements. In-room bass extension to about 40-50Hz when placed near a wall, thanks to extended bass-shelf tuning. Sounds excellent whether pointed directly at the listener or toed out a full 30° parallel to the back wall: unusually flexible placement. More vertical listening leeway than standard non-coaxial two-way designs, thanks to the coincident tweeter/midrange. Distortion looks good at both 86dB and 96dB, and multitone distortion holds up well too. Comes with a plinth/outrigger kit for stability given its floorstanding height (about 43-44”). Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 88.6dB.

Cons: Genuinely dark-sounding on raw on-axis measurement, and needs a typical room with sidewall reflections (within about 6 feet/2 meters) to sound properly neutral: in a large room with little sidewall interaction, it may sound too dull for some listeners. Must be placed close to a rear wall (about 1 foot) to get proper bass: pulling it out to the “standard” 3-foot audiophile recommendation causes bass output to drop off noticeably. Horizontal radiation of about ±50° is narrower than the reviewer’s preferred ±60°, giving a slightly less enveloping soundstage than some rivals. Notably darker than sibling KEF models in the same product family: measures 2-5dB less top-end energy than the R3 Meta and a few dB less than the Q Concerto Meta. Minor lingering resonances appear in burst decay measurements between 500Hz-1kHz. The tweeter shows some strain at very high output volumes, a limitation the reviewer notes is common even among more budget-friendly speakers generally.

Full KEF Q11 Meta review and specifications →

Bass Extension (-10dB)	29Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	60Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	43.8”H x 12.5”W x 15”D (1112.8 x 317.5 x 381.0 mm)
Drivers	25mm tweeter + dual 165mm drivers
Impedance	4 ohms nominal (3.2 ohms minimum, measured, Erin’s Audio Corner)
Sensitivity	88.6dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	6.72
Spinorama Preference Score with Perfect Sub	8.03
Weight	106.9 lbs (48.5 kg)
Woofer Cabinet	ported, rear

Check current price at Amazon ($1,249.99) →Search eBay for KEF Q11 Meta →

#45 KLH Model Five: $2,998.00 per pair Amazon Crutchfield eBay

Pros: Exceptionally wide and even horizontal radiation of roughly +/-70-80 degrees gives a spacious soundstage without sacrificing image focus when toed out about 10 degrees. Three rear-panel mid/high attenuation settings are genuinely useful for room and placement matching; Erin preferred Low in his room, with the grille fitted and slight toe-out. The sealed 10-inch acoustic-suspension woofer reaches an Erin-measured F3 near 52Hz and integrates gradually with a subwoofer. At 96dB/1m, harmonic distortion stays mostly below 1%, and multitone distortion is also well controlled. Compression is good at ordinary and high listening levels until the most extreme sweep, supporting convincing dynamics. The included slanted stands aim the unusually low tweeter toward seated ear height. Near-wall placement naturally fills the mild 200Hz baffle-step depression, as the manual intends. Measured bass extension of 52Hz (-3dB), with a measured sensitivity of 85dB.

Cons: On-axis response is visibly irregular because the wide vintage baffle creates diffraction, and the upper/lower midbass mismatch around 200Hz can sound lean away from the intended wall placement. Erin heard a mild 800-900Hz resonance that coincides with a clear impedance blip, plus occasional hardness around the 2-4kHz crossover region at elevated level. Vertical directivity is narrow; the included five-degree slant bases are important because the tweeter otherwise aims below seated ears. The top end rolls off relative to the midrange, producing a warm balance that may not suit listeners seeking maximum air. At the highest test level the tweeter develops substantial compression. Large size, 52lb weight with stand and roughly $2998/pair price are significant commitments, and subwoofers remain necessary for the lowest octave.

Full KLH Model Five review and specifications →

Bass Extension (-10dB)	32.2Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	52Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	26”H x 13.8”W x 11.5”D (660 x 350 x 292 mm) without stand
Drivers	10” paper-cone woofer, 4” paper-cone midrange, 1” aluminum-dome tweeter
Impedance	6 ohms nominal, 3.5 ohms minimum at 140Hz (manufacturer specified)
Sensitivity	About 85dB @ 2.83V/1m (measured, Erin’s Audio Corner; 87.5dB free-field manufacturer specified)
Spinorama Preference Score	4.76
Spinorama Preference Score with Perfect Sub	6.71
Weight	44.1 lbs (20 kg) each without stand; 52 lbs (23.6 kg) with stand
Woofer Cabinet	sealed acoustic suspension

Check current price at Amazon ($2,998.00) →Check current price at Crutchfield ($2998) →Search eBay for KLH Model Five →

#46 Klipsch RP-5000F II: $1,199.98 per pair B&H Photo Video eBay

Pros: The most tonally coherent of the RP II floorstander line, with a mild baffle-step dip and treble tilt but no additional coloration issues beyond that. Precise imaging thanks to the controlled horn/waveguide directivity. Measured bass extension of 55Hz (-3dB), with a measured sensitivity of 90dB.

Cons: Bass extension is underwhelming for a floorstander (F3 at 55Hz, F10 at 41Hz) and needs a subwoofer. Narrow horizontal dispersion (~50-60 degrees) trades soundstage width for imaging precision. A mild high-frequency tilt and a slight lack of detail around 1-1.5kHz.

Full Klipsch RP-5000F II review and specifications →

Bass Extension (-10dB)	41Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	55Hz (measured, Erin’s Audio Corner)
Crossover Frequency	1900Hz
DIY Kit	No
Dimensions	36.1” x 8.1” x 14.8” (917 x 207 x 375 mm)
Drivers	1” titanium tweeter with Tractrix horn, dual 5.25” cerametallic woofers
Frequency Response	40Hz - 25kHz (+-3dB, Manufacturer specified)
Impedance	8 ohms nominal, 3.3 ohms minimum (measured above 80Hz, Erin’s Audio Corner)
Power Handling	100W continuous, 400W peak
Sensitivity	90dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	5.24
Spinorama Preference Score with Perfect Sub	7.25
Weight	38.6 lbs (17.5 kg)
Woofer Cabinet	ported, rear

Check current price at B&H Photo Video ($599.99) →Search eBay for Klipsch RP-5000F II →

#47 Monolith Encore T6: $800 per pair Amazon Monoprice eBay

Pros: Three 6.5-inch pulp-cone drivers provide more displacement and cleaner cinema output than the B6, with good compression behavior at normal levels. Erin found the revised waveguided tweeter’s horizontal radiation consistent enough for predictable EQ, while the gloss-capped, heavily braced 49lb cabinet feels far above its price. The tower can produce useful midbass impact when crossed to a subwoofer. Measured bass extension of ~68Hz (-3dB).

Cons: Despite its size, Erin measured F3 around 68Hz, so the tower does not eliminate the need for a subwoofer. The native response needs equalization: crossover-region unevenness and excess top-octave energy prevent a fully neutral presentation. The four-ohm load and low-frequency phase angle warrant a robust amplifier, and the tall multi-driver array creates a narrower vertical listening window than a compact two-way.

Full Monolith Encore T6 review and specifications →

Bass Extension (-10dB)	31.1Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	~68Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	40H x 7.9W x 13.8D inches
Drivers	Three 6.5-inch pulp woofers; 25mm waveguided silk dome
Impedance	4 ohms nominal
Sensitivity	87.8dB/2.83V/1m (manufacturer)
Spinorama Preference Score	4.57
Spinorama Preference Score with Perfect Sub	6.45
Weight	49.2 lbs (22.3 kg) each

Check current price at Amazon ($800) →Check current price at Monoprice →Search eBay for Monolith Encore T6 →

#48 Monolith THX-365T: $900 per pair Amazon Monoprice eBay

Pros: The coaxial midrange/tweeter produces coherent horizontal and vertical coverage through most of the vocal band, while twin 6.5-inch woofers deliver good 88.6dB measured sensitivity. Erin found low distortion above the bass and useful dynamic capacity for home theater; the sealed enclosure also makes the intended 80Hz THX crossover predictable. An integrated up-firing Atmos module and THX Ultra certification make this a compact, unusually versatile LCR/tower. Measured bass extension of 84Hz (-3dB), with a measured sensitivity of 88.6dB.

Cons: Erin measured F3 at 84Hz (F10 roughly 40Hz), so it categorically needs a subwoofer. Native response has enough upper-mid/treble irregularity that Erin recommended it only with EQ. Although mostly above four ohms, impedance falls to nearly 3 ohms with an adverse phase angle, potentially stressing an AVR; a separate four-ohm-capable amplifier is prudent. The Atmos module adds cost and height but cannot substitute for properly placed ceiling speakers.

Full Monolith THX-365T review and specifications →

Bass Extension (-10dB)	~40Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	84Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	22.9”H x 9.7”W x 10.8”D (581 x 246 x 275 mm) (without grille)
Drivers	Dual 6.5-inch woofers; 2-inch coaxial midrange/1-inch dome; 5.25-inch Atmos coaxial
Enclosure	Sealed
Impedance	4 ohms nominal; nearly 3 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	88.6dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	3.83
Spinorama Preference Score with Perfect Sub	6.90
Weight	28.4 lbs (12.9 kg) each

Check current price at Amazon ($900) →Check current price at Monoprice →Search eBay for Monolith THX-365T →

#49 Klipsch RP-8000F II: $1,159.98 per pair Amazon eBay

Pros: Highest sensitivity of the RP II floorstander line (~92dB measured) and the best dynamics/compression behavior of the three under load: the cleanest at high output. Dual 8-inch woofers and the highest power handling in the line. Measured bass extension of 67Hz (-3dB), with a measured sensitivity of 92dB.

Cons: Mid-bass sounds lean despite the dual 8-inch woofers, and bass extension disappointed for its size: expected to reach 50Hz, didn’t get there in-room. Has its own edgy upper-mid bump (2-6kHz) that’s harder to EQ out than the other two models’ issues, since it stems from the vertical horn/woofer offset rather than simple tonal balance. The most placement-critical of the three, with the narrowest horizontal (~40-50 degrees) and vertical (+5/-10 degrees) dispersion.

Full Klipsch RP-8000F II review and specifications →

Bass Extension (-10dB)	33Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	67Hz (measured, Erin’s Audio Corner)
Crossover Frequency	1630Hz
DIY Kit	No
Dimensions	43.1” x 10.8” x 18.3” (1095 x 275 x 464 mm)
Drivers	1” titanium tweeter with 90x90 Tractrix horn, dual 8” cerametallic woofers
Frequency Response	35Hz - 25kHz (+-3dB, Manufacturer specified)
Impedance	8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner)
Power Handling	150W continuous, 600W peak
Sensitivity	92dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	5.39
Spinorama Preference Score with Perfect Sub	7.12
Weight	61.3 lbs (27.8 kg)
Woofer Cabinet	ported, rear

Check current price at Amazon ($1,159.98) →Search eBay for Klipsch RP-8000F II →

#50 Dynaudio Emit 30: $1,274.25 per pair Amazon eBay

Pros: A 2.5-way floorstander: two 5.25” mid-woofers paired with a roughly 1” dome tweeter, driven through dual rear bass-reflex ports. The two woofers hand off at staggered crossover points (around 1kHz and 3.5kHz) rather than sharing one, which avoids the acoustic lobing a shared crossover point would cause between the tweeter and the lower woofer, and adds a few dB of sensitivity in the process. Genuinely deep bass for a speaker around this price: measured F3 near 44Hz and extends audibly down to about 40Hz in-room without much difficulty. Harmonic distortion measures clean and low at both 86dB and 96dB SPL/1m. Good CTA-2034 sound power and uniform directivity mean the speaker takes EQ correction well if a listener wants to dial in its one tonal weak point. Dynamic range and compression performance are strong overall, with only a minor, high-Q compression artifact tied to a cone-edge resonance that’s unlikely to be audible. Wide, consistent horizontal dispersion around ±70° with just a small ~10° narrowing between 1-3kHz, and a reasonably forgiving ±20° vertical window centered on the tweeter axis. Measured bass extension of 44Hz (-3dB).

Cons: A dip and inconsistency in the lower-treble presence region (roughly 2-5kHz) makes the top end sound uneven (sometimes soft, sometimes forward) depending on the specific instrument or frequency being reproduced; male vocals can lack presence and cymbals can lack sizzle as a result. A cone-edge surround resonance shows up around 1-1.3kHz in burst-decay measurements (a trait the reviewer has also seen on other Dynaudio models) and lines up with elevated multitone distortion across roughly 600Hz-1.5kHz. An enclosure resonance appears around 350Hz in the impedance curve. Placed too close to a rear wall, the dual ports make the bass noticeably boomy: pulling the speaker out is needed to keep the low end from overloading the room. Fully resolving the top-end inconsistency needs a modest EQ correction (roughly +2dB with a Q of about 1, centered 3-6kHz), so out-of-the-box tonal accuracy in that band isn’t quite class-leading despite otherwise strong measured performance.

Full Dynaudio Emit 30 review and specifications →

Bass Extension (-10dB)	36Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	44Hz (measured, Erin’s Audio Corner)
Country	Denmark
DIY Kit	No
Dimensions	35.4”H x 6.7”W x 10.7”D (900.0 x 170.0 x 272.0 mm)
Drivers	Dual 5.25” mid-woofers, 1” soft dome tweeter
Frequency Response	44Hz - 25kHz (±3dB, manufacturer specified)
Impedance	4 ohms
Power Handling	180W (IEC rated)
Sensitivity	87dB
Spinorama Preference Score	3.84
Spinorama Preference Score with Perfect Sub	5.69
Weight	34.2 lbs (15.5 kg)
Woofer Cabinet	ported, rear (dual)

Check current price at Amazon ($1,274.25) →Search eBay for Dynaudio Emit 30 →

Links
- Official Dynaudio Emit 30 Website
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: WANT Deep Bass Without Breaking the Bank? Dynaudio Emit 30 Review. More from Erin’s Audio Corner →
- Erin’s Audio Corner Measurements (spinorama.org)
Head-to-Head Comparisons

#51 Klipsch RP-6000F II: $1500 per pair Amazon eBay

Pros: Highest power handling and clean, well-behaved compression at typical volumes. Precise imaging from the controlled horn directivity. Measured bass extension of 67Hz (-3dB), with a measured sensitivity of 90dB.

Cons: Worse baffle-step coloration than the smaller RP-5000F II (3-4dB swing vs 2dB), plus a sibilance issue the 5000F doesn’t have: a real regression in tonal balance despite the higher price. Bass extension is mixed (less deep at -3dB (67Hz) than the 5000F) and needs a subwoofer regardless. Narrow horizontal dispersion (~50-60 degrees).

Full Klipsch RP-6000F II review and specifications →

Bass Extension (-10dB)	33Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	67Hz (measured, Erin’s Audio Corner)
Crossover Frequency	1770Hz
DIY Kit	No
Dimensions	39.6” x 9.3” x 17.6” (1006 x 236 x 446 mm)
Drivers	1” titanium tweeter with Tractrix horn, dual 6.5” cerametallic woofers
Frequency Response	38Hz - 25kHz (+-3dB, Manufacturer specified)
Impedance	8 ohms nominal (3.7 ohms minimum, measured, Erin’s Audio Corner)
Power Handling	125W continuous, 500W peak
Sensitivity	90dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	5.74
Spinorama Preference Score with Perfect Sub	7.47
Weight	49.4 lbs (22.4 kg)
Woofer Cabinet	ported, rear

Check current price at Amazon ($1500) →Search eBay for Klipsch RP-6000F II →

#52 Definitive Technology BP-9020: $500 per pair Discontinued eBay

Pros: Integrated powered 8” side-firing subwoofer with a 150-watt Class D amplifier provides exceptional sub-bass extension down to an F3 of 35Hz and F10 of 29Hz without requiring a standalone subwoofer enclosure. Forward-Focused Bipolar Array technology (dual 3.5” front midrange drivers + 1” annealed aluminum dome tweeter, plus a 3.5” rear-firing midrange driver) creates a remarkably wide, spacious soundstage with broad room envelopment. On-axis frequency response stays smooth and relatively neutral when listened to directly aligned with the tweeter. Measured average sensitivity of 87.7dB SPL (2.83V/1m) allows comfortable drive from standard multi-channel receivers. Measured bass extension of 35Hz (-3dB), with a measured sensitivity of 87.7dB.

Cons: Significant high-frequency boost creates notable treble brightness and noticeable sibilance on vocal s-sounds. Bipolar rear driver radiation creates a diffuse soundstage that compromises razor-sharp imaging focus and pinpoint instrument placement. DSP-based internal limiter aggressively compresses output below 80Hz at higher listening levels, causing lower mid-bass and sub-bass impact to diminish as volume increases. Midrange clarity shows slight ‘cuppiness’ and upper-frequency directivity irregularities due to front/rear driver interaction. Discontinued.

Full Definitive Technology BP-9020 review and specifications →

Bass Extension (-10dB)	29Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	35Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	35.3”H x 11”W x 13”D (895.4 x 279.4 x 330.2 mm)
Drivers	1 in. annealed aluminum dome tweeter, two 3.5 in. BDSS midrange (front), one 3.5 in. BDSS midrange (rear), 8 in. powered subwoofer
Impedance	8 ohms nominal
Sensitivity	87.7dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	5.08
Spinorama Preference Score with Perfect Sub	6.53
Weight	30 lbs (13.6 kg) each
Woofer Cabinet	ported, slot

Search eBay for Definitive Technology BP-9020 →

#53 SVS Ultra Evolution Pinnacle: $2,499.00 per pair Amazon SVS eBay

Pros: Flagship three-way tower with a diamond-coated tweeter, dual midranges and four force-balanced 8-inch woofers. Erin measured exceptional 27Hz extension, broad roughly +/-75-degree horizontal coverage, an 88.1dB sensitivity and a 4.91 preference score even without a subwoofer. Measured bass extension of 41.0Hz (-3dB).

Cons: The 5.25-to-8-inch transitions and complex array do not produce class-leading smoothness: 0.184 on-axis, 0.226 predicted in-room and 3.64 directivity-index consistency. At 96.7 pounds each, these are difficult to position, and their Q of 1.25 indicates some bass emphasis. A dip in the upper midrange followed closely by a peak around 2 to 3kHz gives vocals a shouty, forward quality that toe-out alone does not resolve.

Full SVS Ultra Evolution Pinnacle review and specifications →

Bass Extension (-3dB)	41.0Hz (measured, Erin’s Audio Corner via spinorama.org)
DIY Kit	No
Dimensions	50.2H x 11.8W x 18.1D in
Drivers	1” diamond-coated tweeter, dual 5.25” midranges, quad 8” woofers
Enclosure	3-way passive, dual rear ports
Impedance	6 ohms nominal
Sensitivity	88dB
Spinorama Preference Score	4.91
Spinorama Preference Score with Perfect Sub	6.13
Weight	96.8 lbs (43.9 kg) each

Check current price at Amazon ($2,499.00) →Check current price at SVS ($2,499.99 each) →Search eBay for SVS Ultra Evolution Pinnacle →

#54 Polk T50: $498 per pair Amazon eBay

Pros: Pretty deep bass for the price. Distortion at 86dB SPL/1m is reasonably controlled outside a narrow spike around 250Hz. The reviewer notes performance is “not too bad for a budget speaker” once the two main tonal issues are addressed with EQ. Measured bass extension of 47Hz (-3dB), with a measured sensitivity of 86.3dB.

Cons: 5dB peak at 1kHz, 4dB bright top end from 11kHz on up. Just okay vertical off axis. Impedance and phase show several resonances between 200Hz-1kHz, with a minimum impedance of 4.2 ohms. Distortion rises substantially at 96dB SPL/1m across the midrange, with repeated peaks between 100Hz-2kHz.

Full Polk T50 review and specifications →

Bass Extension (-10dB)	38Hz (measured, Audio Science Review)
Bass Extension (-3dB)	47Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	40.4”H x 9.3”W x 12.5”D (1026.2 x 235.0 x 317.5 mm)
Drivers	2x 6.5” bi-laminate paper cone woofers, 1x 1” Terylene dome tweeter + 2x 8” passive bass radiators
Impedance	4 ohms nominal (4.2 ohms minimum, measured by Audio Science Review)
Sensitivity	86.3dB (2.83V/1m, measured by Audio Science Review)
Spinorama Preference Score	4.14
Spinorama Preference Score with Perfect Sub	6.15
Weight	75.4 lbs (34.2 kg)
Woofer Cabinet	passive radiator

Check current price at Amazon ($249.00) →Search eBay for Polk T50 →

Links
- Official Polk T50 Website
Reviews, Comparisons and Sound Samples
- Audio Science Review Polk T50 More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#55 Vandersteen Treo CT: $11,090 per pair Audio Connection eBay

Pros: A time-aligned four-driver floorstander with carbon tweeter, first-order crossovers and exceptional measured bass reach. Erin’s data predicts 27Hz in-room extension, a 4.95 standalone preference score, smooth 0.106 sound power and a 6.17 score with a subwoofer. Measured bass extension of 43.9Hz (-3dB).

Cons: At $11090 per pair, 80 lb each and only 85dB sensitivity, it is costly and amplifier-demanding. The response rises about +0.62dB per octave, horizontal coverage narrows to roughly +/-40 degrees, and on-axis smoothness is only 0.170.

Full Vandersteen Treo CT review and specifications →

Bass Extension (-10dB)	22.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)	43.9Hz (measured, Erin’s Audio Corner via spinorama.org)
Country	United States
DIY Kit	No
Dimensions	43H x 10W x 15D in
Drivers	1” carbon tweeter, 4.5” midrange, 6.5” woofer, 8” acoustic coupler
Enclosure	4-driver, floorstanding bass-reflex
Impedance	6 ohms nominal, 4 ohms minimum
Sensitivity	85dB
Spinorama Preference Score	4.95
Spinorama Preference Score with Perfect Sub	6.17
Weight	80 lbs (36.3 kg) each

Check current price at Audio Connection ($11,090) →Search eBay for Vandersteen Treo CT →

Links
- Vandersteen Treo CT Resources
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner Measurements (spinorama.org) More from Erin’s Audio Corner →
Head-to-Head Comparisons

#56 Aperion Audio Novus N5T: $1,048.50 per pair Aperion Audio eBay

Pros: A compact direct-sale tower with dual 5.25-inch aramid-fiber woofers, a silk-dome tweeter, free shipping and a 30-day home trial. ASR found excellent sound-power smoothness of 0.122, controlled directivity, and deep 36Hz estimated in-room extension. Measured bass extension of 51.3Hz (-3dB), with a measured sensitivity of 86dB.

Cons: The -0.31dB-per-octave response tilt makes it moderately warm/dark, while on-axis smoothness of 0.267 is merely average. The measured 86dB sensitivity is lower than the maker’s 89dB specification.

Full Aperion Audio Novus N5T review and specifications →

Bass Extension (-10dB)	32.7Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)	51.3Hz (measured, ASR via spinorama.org)
Country	United States (design)
DIY Kit	No
Dimensions	39H x 7.5W x 10.6D in
Drivers	1” silk-dome tweeter, 2x 5.25” aramid-fiber woofers
Enclosure	2.5-way, rear-ported
Impedance	4 ohms nominal
Sensitivity	86dB measured
Spinorama Preference Score	4.88
Spinorama Preference Score with Perfect Sub	6.62
Weight	37 lbs (16.8 kg) each

Check current price at Aperion Audio ($524.25) →Search eBay for Aperion Audio Novus N5T →

Links
- Aperion Novus N5T Official Page
Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements (spinorama.org) More from Audio Science Review →
Head-to-Head Comparisons
- Aperion Audio Novus N5T vs Vandersteen Treo CT
- Aperion Audio Novus N5T vs Emotiva Airmotiv XT2

#57 Focal Aria Evo X N°2: $4,798 per pair Amazon eBay

Pros: Solid bass with a deliberate mid-bass bump (80-120Hz) that gives extra thump and weight, extending to about 40-50Hz in-room. High sensitivity (measured 88.2dB) makes it easy to drive, and distortion is low throughout the range even at high output: the reviewer found only a minor compression “glare” around 4.5kHz at very high volumes, not a real concern. Directivity components (mid-range and tweeter) transition smoothly rather than abruptly, and the overall soundstage is wide and enveloping. Measured bass extension of 50Hz (-3dB), with a measured sensitivity of 88.2dB.

Cons: Sounds very bright pointed directly at the listener: the tweeter comes in 5-6dB above the midrange with an unusually wide, roughly two-octave dip (1kHz-4kHz) leading into it, giving a laid-back, low-attack character even after toeing out ~20 degrees. Fixing this properly requires real EQ (a mini DSP or similar), not just toe-out or absorption alone; without EQ, expect it to sound bright for stereo listening. A mild dip around 200Hz makes male vocals sound slightly subdued. Narrow vertical directivity (about +/-15 degrees) means you need to stay close to tweeter-axis height. Impedance dips to 3.4 ohms (EPDR 1.4 ohms), so it wants a 4-ohm-capable amplifier, and requires a plinth for floor clearance since it’s bottom-ported.

Full Focal Aria Evo X N°2 review and specifications →

Bass Extension (-10dB)	38Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	50Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	40.7”H x 14.6”W x 11.6”D (1035 x 371 x 294 mm)
Drivers	Aluminum-magnesium inverted dome tweeter with waveguide, 6.5” flax midrange, dual 6.5” flax midbass woofers
Frequency Response	45Hz - 30kHz (Manufacturer specified)
Impedance	8 ohms nominal (2.9 ohms minimum, Manufacturer specified; 3.4 ohms minimum measured by Erin’s Audio Corner)
Recommended Power	40-250W
Sensitivity	88.2dB (2.83V/1m, measured by Erin’s Audio Corner; 91.5dB Manufacturer specified)
Spinorama Preference Score	4.88
Spinorama Preference Score with Perfect Sub	6.82
Weight	55.1 lbs (25 kg) each
Woofer Cabinet	3-way, bass reflex (bottom-firing port, requires plinth)

Check current price at Amazon ($2,399.00) →Search eBay for Focal Aria Evo X N°2 →

#58 Polk Audio XT70: $698 per pair Amazon eBay

Pros: The flagship tower in Polk’s current Monitor XT lineup, sitting above the XT60 and XT15 in the same series, adding a second 6.5” woofer and dual 8” passive radiators for more low-end output. Rated for both 4 and 8 ohm operation. Measured bass extension of 43.9Hz (-3dB).

Cons: On-axis smoothness (0.274) and listening-window smoothness (0.303) are unremarkable for a tower this size, with a pronounced +0.28dB per octave upward tonal tilt giving it a brighter-leaning balance and a predicted in-room smoothness of just 0.31. Directivity-index standard deviation of 3.33 is unremarkable either way.

Full Polk Audio XT70 review and specifications →

Bass Extension (-10dB)	37.7Hz (derived, sustained-crossing interpolation, Erin’s Audio Corner via spinorama.org)
Bass Extension (-3dB)	43.9Hz (measured, Erin’s Audio Corner via spinorama.org)
Country	China
DIY Kit	No
Dimensions	40.4H x 9.25W x 12.5D in
Drivers	1” Terylene dome tweeter, 2x 6.5” Dynamic Balance woofers, 2x 8” passive radiators
Enclosure	Ported, critically-braced MDF
Impedance	4/8 ohm compatible
Sensitivity	89dB @ 1W/1m
Spinorama Preference Score	5.16
Spinorama Preference Score with Perfect Sub	7.10
Weight	35.1 lbs (15.9 kg) each

Check current price at Amazon ($349.00) →Search eBay for Polk Audio XT70 →

Links
- Polk Audio Monitor XT70 Official Page
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner Measurements (spinorama.org) More from Erin’s Audio Corner →
Head-to-Head Comparisons

#59 Polk Audio XT60: $458 per pair Amazon B&H Photo Video Crutchfield eBay

Pros: Passive-radiator-loaded design (6.5” woofer plus two 6.5” passive radiators) gives deeper bass than the driver size alone would suggest: 43.9Hz at -3dB / 38.1Hz at -10dB, genuinely competitive extension for a budget tower. Hi-Res Audio certified, Dolby Atmos/DTS:X compatible, and works with either 4- or 8-ohm amplifier outputs. Measured bass extension of 43.9Hz (-3dB).

Cons: Bass alignment Q (lfq 0.96) is the highest, least-controlled figure in this entire batch, consistent with owner reports of a slightly loose, boomy low end at higher volumes. On-axis response is also relatively uneven, with narrow-band deviation of about 0.51dB. The vinyl-wrapped (not wood veneer) cabinet reads as budget up close per owner reviews, and at least one owner reported blowing a driver under sustained heavy bass: some caution is warranted with bass-heavy source material at volume.

Full Polk Audio XT60 review and specifications →

Bass Extension (-10dB)	38.1Hz (measured, spinorama.org)
Bass Extension (-3dB)	43.9Hz (measured, spinorama.org)
DIY Kit	No
Dimensions	19.05 x 92.5 x 23.09cm (7.5 x 36.4 x 9.09 in) each
Drivers	1” Terylene dome tweeter, 6.5” bilaminate polypropylene woofer, 2x 6.5” passive radiators
Impedance	4/8-ohm compatible
Sensitivity	86dB (1W/1m)
Spinorama Preference Score	5.19
Spinorama Preference Score with Perfect Sub	7.13
Weight	20 lbs (9.07 kg) each
Woofer Cabinet	Passive radiator-loaded

Check current price at Amazon ($229.00) →Check current price at B&H Photo Video ($229) →Check current price at Crutchfield ($229) →Search eBay for Polk Audio XT60 →

Links
- Official Polk Audio XT60 Product Page
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner Measurements (spinorama.org) More from Erin’s Audio Corner →
Head-to-Head Comparisons

#60 Infinity Reference 253: $400 per pair used Discontinued eBay

Pros: Horizontal beamwidth of about ±60 degrees is fairly smooth and well controlled. Really amazing value for the performance. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 86.9dB.

Cons: CEA2034 spinorama and predicted in-room response both show elevated treble above 4kHz (“too hot”), a dip around 2kHz, and bass shelved down relative to the midrange. Vertical directivity requires staying at or below the tweeter axis for accurate tonal balance. Distortion at 96dB SPL/1m is broadly elevated above the reviewer’s audibility threshold across much of the midrange. Minimum impedance dips to 4.2 ohms. Discontinued.

Full Infinity Reference 253 review and specifications →

Bass Extension (-10dB)	38Hz (measured, Audio Science Review)
Bass Extension (-3dB)	78Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	40.3”H x 6.8”W x 12.4”D (1023.6 x 172.7 x 315 mm)
Drivers	Dual 5.25” (130mm) CMMD™ woofers, 5.25” (130mm) flat-piston CMMD™ midrange, 1” (25mm) CMMD™ tweeter
Impedance	6 ohms
Sensitivity	86.9dB (measured by Audio Science Review; 88dB manufacturer specified)
Spinorama Preference Score	5.43 (spinorama.org)
Spinorama Preference Score with Perfect Sub	7.31 (spinorama.org)
Weight	39.2 lbs (17.8 kg) each
Woofer Cabinet	ported, rear

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#61 Magnepan LRS+: $1300 per pair Magnepan eBay

Pros: Thin, two-way planar-magnetic open-baffle/dipole panel design (about 48” tall, just 1” deep). Delivers a uniquely dramatic and enveloping soundstage with genuinely three-dimensional depth effects that work across all music genres, not just classical or orchestral material as commonly assumed. Extremely tight, locked-in center-phantom imaging when set up correctly. Open-baffle design avoids the “boxy” enclosure coloration of conventional cabinet speakers. Multitone distortion is remarkably consistent from low to high frequency, a characteristic the reviewer hasn’t observed in conventional cone-and-dome speakers. Compression at high output stays modest (about 0.5-1dB) through the midrange and treble, giving roughly 20-26dB of usable dynamic range in that region. At its price, a strong contender for a dedicated secondary listening room, even if not a main-system replacement. Measured bass extension of 74Hz (-3dB), with a measured sensitivity of 85.1dB.

Cons: Extremely current-hungry and power-hungry: even a pair of 600W Macintosh monoblock amplifiers only averaged about 90dB output. A robust, high-power amplifier is essentially mandatory, and budget amps won’t cut it. Bass rolls off very quickly (F3 74Hz, F10 67Hz, described as falling off “like a rock”), making a subwoofer an absolute requirement for any low-end content. A roughly 3dB dip in the mid-bass (100-300Hz) region thins out vocal body and fullness compared to a conventional bookshelf speaker. A resonance/bump around 400Hz adds a mild boxy quality, though it responds well to about 2dB of EQ correction. Extraordinarily fussy about exact positioning: both seating height (must align with the acoustic reference point between the panel’s lower tie-down points) and horizontal aiming are unusually critical; moving just a couple of inches can cause treble content above roughly 500-600Hz to nearly vanish. Distinct off-axis cancellation zones exist directly to the sides of the panel, where very little sound is audible at all. Fails badly under extreme dynamic-transient testing in the bass, and the reviewer blew fuses pushing the speaker during testing: not built for high-volume or highly dynamic playback. A genuinely different category from conventional hi-fi speakers, requiring more setup patience and experimentation than a typical monopole design.

Full Magnepan LRS+ review and specifications →

Bass Extension (-10dB)	67Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	74Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	48”H x 13.5”W x 1”D (1219.2 x 342.9 x 25.4 mm)
Drivers	Full-range planar magnetic dipole panel (48” tall x 13.5” wide); quasi-ribbon design, two-way with separate mid/bass and tweeter ribbon sections
Impedance	4 ohms nominal, 3 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	85.1dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	1.27
Spinorama Preference Score with Perfect Sub	4.32
Weight	30 lbs (13.6 kg)
Woofer Cabinet	open baffle

Check current price at Magnepan ($1300) →Search eBay for Magnepan LRS+ →

#62 Polk Signature Elite ES60: $599 per pair Crutchfield eBay

Pros: Three 6.5-inch woofers deliver strong output, 39Hz measured extension and about 89.5dB measured sensitivity. Its local Spinorama scores of 3.69 raw and 5.57 with subwoofer are respectable for a large value-oriented tower, with reasonably smooth listening-window behavior. Measured bass extension of 51.3Hz (-3dB), with a measured sensitivity of 90dB.

Cons: The measured data show enough directivity and response unevenness to keep it below the strongest neutral towers, and its large cabinet needs room. Polk’s 32Hz lower-limit claim is optimistic relative to the independent anechoic result.

Full Polk Signature Elite ES60 review and specifications →

Bass Extension (-10dB)	37.1Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)	51.3Hz (measured, ASR via spinorama.org)
DIY Kit	No
Dimensions	44.5H x 8.5W x 15.7D in
Drivers	1” Terylene tweeter, three 6.5” woofers
Enclosure	2-way floorstander with Power Port
Frequency Response	32Hz-40kHz (manufacturer)
Impedance	8 ohms compatible
Sensitivity	90dB specified; 89.5dB measured
Spinorama Preference Score	3.69
Spinorama Preference Score with Perfect Sub	5.57
Weight	52 lbs (23.6 kg) each

Check current price at Crutchfield ($599) →Search eBay for Polk Signature Elite ES60 →

Links
- Polk Signature Elite ES60 Official Page
Reviews, Comparisons and Sound Samples
- Polk ES60 Measurements (spinorama.org)
Head-to-Head Comparisons

#63 JBL Stage 2 280F: $1,319.90 per pair Amazon eBay

Pros: Genuinely impressive output capability and low compression/distortion for the price, courtesy of the dual 8” woofers: the reviewer’s standout praise for this pair. High sensitivity (89.5dB measured) and low impedance make it easy to drive. Decent bass extension (F3 48Hz, F10 30Hz) reaches about 50Hz in-room. Horizontal dispersion is reasonably consistent (~55 degrees), meaning the speaker takes reasonably well to EQ correction. Measured bass extension of 48Hz (-3dB), with a measured sensitivity of 89.5dB.

Cons: Explicitly called out as disappointing relative to expectations for the JBL name and this price point: lacks native linearity compared to similarly-priced alternatives like the Polk Reserve R500, which the reviewer recommends instead for anyone who doesn’t want to rely on EQ. Treble falls off a cliff above about 10-12kHz, giving a notable lack of air/space that needs real correction (a wide +Q0.5 boost from 10-20kHz) to fix. A sharp impedance resonance around 900Hz-1.1kHz is nearly impossible to EQ out cleanly even with narrow filters. Elevated multitone distortion in the 600Hz-2.5kHz range, tied to the midwoofer rather than the tweeter. Compared to the similarly-priced Klipsch RP-6000F II/RP-8000F II, this JBL is less directive and native-flat but does extend roughly 20Hz deeper in the bass: a real tradeoff either way, not a clean win.

Full JBL Stage 2 280F review and specifications →

Bass Extension (-10dB)	30Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	48Hz (measured, Erin’s Audio Corner)
Crossover Frequency	1.1kHz, 2.1kHz
DIY Kit	No
Dimensions	43.8” x 14.1” x 16.5” (1113 x 358 x 419 mm)
Drivers	1” anodized aluminum dome tweeter with HDI waveguide, dual 8” polycellulose woofers
Impedance	6 ohms nominal, 3.9 ohms minimum (measured, Erin’s Audio Corner)
Power Handling	125W RMS
Sensitivity	89.5dB (2.83V/1m, measured by Erin’s Audio Corner)
Spinorama Preference Score	4.69
Spinorama Preference Score with Perfect Sub	6.14
Weight	55.1 lbs (25 kg) each
Woofer Cabinet	ported, rear

Check current price at Amazon ($659.95) →Search eBay for JBL Stage 2 280F →

#64 Dali Rubikore 6: $8000 per pair Safe and Sound HQ eBay

Pros: Unusual 2.5-plus-half-way, four-driver configuration: two woofers overlap up to 800Hz, then one continues alone to about 2600Hz where the tweeter takes over, followed by a supertweeter engaging at 14kHz. A design layout the reviewer says he’d never encountered before. Bass extension reaches a solid 40-45Hz in-room. Distortion is quite low overall, with an especially impressive gap between second- and third-order harmonic distortion in the midwoofers. Wide horizontal radiation of about ±75°, close to the reviewer’s preferred range for an enveloping soundstage. Very good dynamic range, holding up to about 26dB of level increase (70dB to 102dB) with distortion staying within the reviewer’s 3% threshold even at full output. Multiple attractive finish options, including bi-wireable connections. Measured bass extension of 43Hz (-3dB), with a measured sensitivity of 86.4dB.

Cons: On-axis, the treble sits 3-5dB above the midrange (especially around 4kHz), giving a sibilant, hot top end that the manufacturer itself recommends compensating for with 30° of toe-out (firing the speakers straight into the room rather than at the listener). Even with that toe-out, the midrange still reads as somewhat scooped and recessed: the reviewer needed a wide, +2dB EQ boost around 2.5kHz to bring vocals back into proper balance. A high-Q resonance appears around 590Hz, and another shows up around 800Hz in burst decay measurements. Best combined with sidewall absorption to help tame the elevated 4-5kHz energy, adding to setup complexity. Needs specific listening-height positioning: ears should be at the tweeter (not supertweeter) level for the most accurate sound. Without EQ or acoustic treatment, the reviewer found the combination of a hot tweeter and recessed midrange a “tough sale” despite otherwise strong measured performance.

Full Dali Rubikore 6 review and specifications →

Bass Extension (-10dB)	31Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	43Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	39”H x 7.9”W x 15”D (990.0 x 200.0 x 380.0 mm)
Drivers	28mm tweeter + dual 180mm woofers
Impedance	4 ohms nominal (4.3 ohms minimum above 80Hz, measured, Erin’s Audio Corner)
Sensitivity	86.4dB (measured, Erin’s Audio Corner; 88.5dB manufacturer specified)
Spinorama Preference Score	5.27
Spinorama Preference Score with Perfect Sub	6.96
Weight	114.9 lbs (52.1 kg)
Woofer Cabinet	ported, rear

Check current price at Safe and Sound HQ ($8000) →Search eBay for Dali Rubikore 6 →

Links
- Official Dali Rubikore 6 Website
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

#65 Atlantic Technology 8600eLR: $5,700 per pair Atlantic Technology eBay

Pros: A sealed high-output flagship tower with four 8-inch woofers, dual 5.25-inch midranges, 91dB sensitivity and boundary/HF adjustment controls. The local snapshot measures 58Hz extension and scores 5.26 with a subwoofer. Measured bass extension of 68.8Hz (-3dB).

Cons: The raw preference score is only 2.65, making a subwoofer and correction essential despite the massive cabinet. Each tower weighs over 90 pounds, and value is weak if two-channel neutrality is the main goal.

Full Atlantic Technology 8600eLR review and specifications →

Bass Extension (-3dB)	68.8Hz (measured, Erin’s Audio Corner via spinorama.org)
DIY Kit	No
Dimensions	51.7H x 10.9W x 11.4D in
Drivers	1-inch aluminum-magnesium tweeter, dual 5.25-inch midranges, four 8-inch woofers
Enclosure	Sealed 3-way floorstander
Frequency Response	50Hz-25kHz +/-2dB
Impedance	6 ohms
Sensitivity	91dB
Spinorama Preference Score	2.65
Spinorama Preference Score with Perfect Sub	5.26
Weight	93.3 lbs (42.3 kg) each

Check current price at Atlantic Technology ($5,700) →Search eBay for Atlantic Technology 8600eLR →

Links
- Atlantic Technology 8600eLR Official Page
Reviews, Comparisons and Sound Samples
- Atlantic 8600eLR Measurements (spinorama.org)
Head-to-Head Comparisons

#66 Endow Audio Bravura 7: $14,000 per pair Discontinued eBay

Pros: A genuinely unusual radiation concept: nine small midrange drivers radiate nearly omnidirectionally from roughly 300Hz to 6kHz, producing an exceptionally large, enveloping soundstage and illuminating the sidewalls, floor and ceiling much more evenly than a conventional box. Erin found solid, snappy midbass and measured F3 at 50Hz and F10 at 36Hz. On-axis response below the tweeter transition is broadly linear for such an unconventional array. Multitone distortion remains comparatively well controlled at ordinary levels. The rear passive radiator and 7-inch woofer give useful extension, and the system’s room-filling spatial presentation is unlike a standard forward radiator. Measured bass extension of 50Hz (-3dB), with a measured sensitivity of 82dB.

Cons: The radiation pattern changes abruptly at 6kHz: below it the array is nearly omnidirectional, but the waveguided tweeter collapses to about +/-20 degrees horizontally and less than +/-10 degrees vertically. Ears must remain almost exactly on tweeter axis or the top octave largely disappears. Erin measured very low 81-82dB sensitivity despite the nine-driver array, so substantial amplifier power is required. A 7-8dB high-frequency peak suggests tweeter breakup or diffraction. The small midranges show notable compression at high level; 96dB is acceptable but the 102dB sweep loses significant midrange output, while the woofer compresses below about 60Hz. Harmonic distortion is high around 100Hz at 96dB. Its huge reflected-sound contribution makes results unusually room-dependent, and its price is extremely high for its sensitivity, output limits and discontinuous treble directivity. Discontinued.

Full Endow Audio Bravura 7 review and specifications →

Bass Extension (-10dB)	36Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	50Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	21”H x 9”W x 11”D (533 x 229 x 279 mm)
Drivers	7” woofer, nine 1.5” omnidirectional midrange drivers, waveguided tweeter, rear passive radiator
Impedance	4 ohms nominal, 3.1 ohms minimum above 80Hz; 1.5 ohms minimum EPDR (measured, Erin’s Audio Corner)
Sensitivity	81-82dB (measured, Erin’s Audio Corner)
Spinorama Preference Score	2.67
Spinorama Preference Score with Perfect Sub	4.62
Weight	24.3 lbs (11 kg) each
Woofer Cabinet	passive radiator, rear

Search eBay for Endow Audio Bravura 7 →

Links
- Official Endow Audio Website
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Endow Audio Bravura 7. The strangest speaker ever? More from Erin’s Audio Corner →
- Erin’s Audio Corner Measurements (spinorama.org)
Head-to-Head Comparisons

#67 Børresen X3: $11,000 per pair eBay

Pros: A 2.5-way tower built around a planar ribbon tweeter, a 4.5” mid-range driver, and dual 4.5” bass drivers, spec’d at 88dB/1W sensitivity into a 4-ohm nominal load (measured minimum impedance stays a friendly 6.1 ohms above 80Hz, so it doesn’t actually need much power despite the sub-90dB rating). Very wide, remarkably consistent horizontal directivity around ±70° gives an expansive, enveloping soundstage, helped by the reviewer’s pair measuring essentially identically to each other for tight image precision. A pronounced high-Q bass shelf centered around 80Hz (roughly 8dB above the mean level) delivers a punchy, attention-grabbing low-end thump at moderate volumes. Harmonic distortion is clean through the midrange at 86dB, and multitone distortion stays under about 3% even though the low end is handled by relatively small 4.5” drivers rather than something larger. Detailed, extended high frequencies when seated on the tweeter’s intended axis. Measured bass extension of 50Hz (-3dB).

Cons: A significant midrange suckout centered around 200-300Hz measures 8-11dB below the mean SPL, creating an audible hole in the mid-range that multiple independent listeners also flagged unprompted. The 80Hz bass shelf comes with the worst low-frequency ringing the reviewer says he has measured to date on a waterfall plot: it lingers well after the surrounding frequencies have decayed, giving kick drum and bass notes a boomy, one-note quality. Significant dynamic compression sets in as volume rises: bass output near 90Hz drops only about 1.5dB at 86dB SPL, but the loss grows substantially by 96dB and 102dB (around 26dB of total dynamic range), so the appealing bass punch measurably fades at higher listening levels. The upper-midrange and lower treble (2-4kHz) read soft and recessed unless the listener sits almost exactly on the tweeter’s reference axis, within about 15°: the manufacturer’s recommended setup (tweeter aimed above ear height, per their design intent) makes this worse rather than better for a seated listener at normal height. A crossover-related directivity kink between the tweeter and mid-range driver, visible in the vertical response, trades some pinpoint image precision for a more diffuse sense of envelopment compared to smaller two-way designs. Resonances appear in the impedance curve near 300Hz and 2kHz, coinciding with the measured midrange dip.

Full Børresen X3 review and specifications →

Bass Extension (-10dB)	25Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	50Hz (measured, Erin’s Audio Corner)
Country	Denmark
DIY Kit	No
Dimensions	50.8”H x 13.6”W x 23.9”D (1290.0 x 345.0 x 607.0 mm)
Drivers	Planar ribbon tweeter, 4.5” mid-range driver, dual 4.5” bass drivers
Frequency Response	35Hz - 50kHz (Manufacturer specified)
Impedance	4 ohms
Recommended Power	50W minimum
Sensitivity	88dB
Spinorama Preference Score	2.38
Spinorama Preference Score with Perfect Sub	3.50
Weight	121.3 lbs (55 kg)

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Links
- Official Børresen X3 Website
Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: The Hidden Secrets of BØRRESEN X3 SPEAKER Audiophiles Need to Know More from Erin’s Audio Corner →
- Erin’s Audio Corner Measurements (spinorama.org)
Head-to-Head Comparisons

#68 Sony SS-CS3: $450 per pair Discontinued eBay

Pros: Affordable entry-level floorstanding tower offering solid sensitivity (88.6dB SPL at 2.83V/1m), making it easy to power with standard budget AVRs. Harmonic distortion remains reasonably low at moderate listening levels (86dB SPL) when high-pass filtered above 80-100Hz with a dedicated subwoofer. Front-ported design allows relatively close placement to front boundaries without excessive port occlusion. Measured bass extension of 72Hz (-3dB), with a measured sensitivity of 88.6dB.

Cons: Severe cabinet and driver resonances plague the passband between 100Hz and 600Hz, imparting audible coloration and chesty resonances to male vocals and acoustic instruments. Irregular frequency response peaks and dips make automated receiver room correction difficult to equalize effectively. Poor low-frequency extension (F3 of 72Hz, F10 of 39Hz) for a floorstander, combined with rapid distortion escalation below 80Hz at higher SPLs (96dB+). Supertweeter driver adds crossover complexity without providing audible high-frequency benefit within the human hearing spectrum. Discontinued.

Full Sony SS-CS3 review and specifications →

Bass Extension (-10dB)	39Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	72Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	36.3”H x 9.1”W x 10.2”D (922 x 230 x 260 mm)
Drivers	0.75 in. supertweeter, 0.98 in. polyester main tweeter, dual 5.12 in. MRC woofers
Impedance	6 ohms nominal
Sensitivity	88.6dB (measured average, Erin’s Audio Corner)
Spinorama Preference Score	4.11
Spinorama Preference Score with Perfect Sub	6.65
Weight	25.4 lbs (11.5 kg) each
Woofer Cabinet	ported, front

Search eBay for Sony SS-CS3 →

#69 JBL Studio 590: $2,000 per pair Discontinued eBay

Newer model: the JBL Studio 698, ranked higher, rated 4.3/5.

Pros: Pretty deep bass. CEA2034 spinorama is flat on-axis at a high level, with high sensitivity around 89-90dB. Predicted in-room response is good aside from a dip between 800Hz-1.5kHz. Distortion at 86dB SPL/1m is good outside of the 8.5kHz resonance. Measured bass extension of 48Hz (-3dB), with a measured sensitivity of 90.3dB.

Cons: 3dB peak at 1.7kHz, about a 4dB peak from 8k to 13k, going to be bright up top. Just okay vertical off axis. Really bad resonance at 8.5kHz, which shows up as a sharp distortion spike at both 86dB and 96dB SPL/1m. Cumulative spectral decay (waterfall) reveals many fine resonances across the midrange and treble. At 96dB SPL/1m the midrange and treble get notably messier, with broad distortion elevation from 2-8kHz. Discontinued.

Full JBL Studio 590 review and specifications →

Bass Extension (-10dB)	32Hz (measured, Audio Science Review)
Bass Extension (-3dB)	48Hz (measured, Audio Science Review)
DIY Kit	No
Dimensions	49.7”H x 12.7”W x 16.3”D (1263.0 x 322.0 x 413.0 mm)
Drivers	2x 8” (200mm) PolyPlas cone woofers, 1x 1” (25mm) Teonex dome tweeter on Bi-Radial horn (2.5-way)
Impedance	6 ohms nominal (5 ohms measured minimum, Audio Science Review)
Sensitivity	90.3dB (2.83V/1m, measured by Audio Science Review)
Spinorama Preference Score	4.49
Spinorama Preference Score with Perfect Sub	6.22
Weight	107.8 lbs (48.9 kg)
Woofer Cabinet	ported, rear

Search eBay for JBL Studio 590 →

Links
- Official JBL Studio 590 Website
Reviews, Comparisons and Sound Samples
- Audio Science Review JBL Studio 590 More from Audio Science Review →
- Audio Science Review Measurements (spinorama.org)
Head-to-Head Comparisons

#70 Jamo S807: $299.00 per pair Discontinued Amazon eBay

Pros: A slim 2.5-way tower with two 5-inch woofers and a 1-inch tweeter in a shallow waveguide, with a front slot port so it can sit closer to a wall. Its 8-ohm load stays close to 8 ohms across the range in Erin’s Audio Corner’s measurements, so any receiver drives it easily, and harmonic distortion stays under 0.5% above 200Hz at an 85dB level. Metal fasteners on top accept Jamo’s S8 ATM Dolby Atmos elevation module. Measured bass extension of 51.9Hz (-3dB), with a measured sensitivity of 84dB.

Cons: Erin’s Audio Corner’s measurements show a smiley-face tuning: boosted bass around 80Hz and boosted treble with the dialogue range sitting 3 to 5dB lower, plus a resonance near 400Hz. The listening window spans 4.6dB between 300Hz and 5kHz, the predicted in-room response is rough (0.39 smoothness) and the preference score is 3.84 (5.94 with an ideal subwoofer). Measured sensitivity is about 84dB against the 90dB claim, and it loses about 2dB to compression at 40Hz at loud listening levels. Erin’s verdict was not to buy it. Jamo has phased out the Studio 8 series it belongs to, so it is mainly a used buy. Discontinued.

Full Jamo S807 review and specifications →

Bass Extension (-10dB)	36.2Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	51.9Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	36”H x 7.5”W x 9.9”D (915 x 191 x 252 mm)
Drivers	2x 5” woofer, 1” tweeter with waveguide (2.5-way)
Impedance	8 ohms nominal (manufacturer specified)
Power Handling	100W rated, 200W peak (manufacturer specified)
Sensitivity	84dB (measured average 300Hz-3kHz, Erin’s Audio Corner; 90dB manufacturer specified)
Spinorama Preference Score	3.84
Spinorama Preference Score with Perfect Sub	5.94
Weight	26 lbs (11.8 kg) each
Woofer Cabinet	ported, front slot

Check current price at Amazon ($299.00) →Search eBay for Jamo S807 →

#71 Triangle Esprit Antal Ez: $1,799 per pair Discontinued eBay

Pros: Predicted in-room response sums rather nicely aside from the resonance and bass issues. Horizontal beamwidth of about ±50 degrees is reasonably controlled. Measured bass extension of 85Hz (-3dB), with a measured sensitivity of 90.7dB.

Cons: Resonance around 260Hz and a number of other resonances show up on-axis, along with a dip in bass response. Two distinct distortion sources (one around 250-300Hz, another around 3-4kHz) already cross the reviewer’s audibility threshold even at moderate output, and get much worse at 96dB SPL/1m, where distortion broadly exceeds 50% relative level across large parts of the spectrum. Directivity is not great overall. The reviewer does not recommend it. Discontinued.

Full Triangle Esprit Antal Ez review and specifications →

Bass Extension (-10dB)	62Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower
Bass Extension (-3dB)	85Hz (measured, Audio Science Review) - low confidence - on-axis curve shows an unusual notch/dip around 250-300Hz for this floorstanding tower
DIY Kit	No
Dimensions	43.9”H x 11.8”W x 15.7”D (1115.0 x 300.0 x 400.0 mm)
Drivers	2x 6.5” (160mm) fiberglass cone woofers, 1x 6.5” (160mm) natural cellulose midrange, 1x 1” (25mm) titanium dome tweeter
Impedance	8 ohms nominal (2.7 ohms minimum, measured by Audio Science Review)
Sensitivity	90.7dB (2.83V/1m, measured by Audio Science Review)
Spinorama Preference Score	2.76
Spinorama Preference Score with Perfect Sub	5.37
Weight	98.5 lbs (44.7 kg)
Woofer Cabinet	ported, front

Search eBay for Triangle Esprit Antal Ez →

#72 Klipsch Heresy IV: $3,198 per pair Amazon Crutchfield eBay

Pros: Very high 94.5dB/2.83V/1m sensitivity in Erin’s anechoic measurement (well below Klipsch’s 99dB in-room claim, but still excellent) and strong short-term output from a 12-inch woofer plus horn-loaded midrange and tweeter. The compact, furniture-grade Heritage cabinet is easier to place than most high-efficiency designs, and dynamics at moderate levels can sound lively. A stable four-ohm-capable amplifier can produce substantial SPL with relatively little voltage. Measured bass extension of 77Hz (-3dB), with a measured sensitivity of 94.5dB.

Cons: Erin measured a 77Hz F3 and response rolling away near 100Hz in-room, so a subwoofer is required for modern full-range reproduction. The impedance dips to about 4 ohms, reducing the practical amplifier advantage implied by its sensitivity. Pronounced directivity mismatch at the driver transitions, impedance/response resonances and elevated distortion spikes around the crossover remain audible concerns that EQ cannot fully solve. At 102dB Erin measured roughly 1.5dB midband compression; at 96dB distortion rises around crossover. Performance is difficult to justify at the price, and Erin explicitly did not recommend it.

Full Klipsch Heresy IV review and specifications →

Bass Extension (-10dB)	50.0Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	77Hz (measured, Erin’s Audio Corner)
DIY Kit	No
Dimensions	24.8”H x 15.6”W x 13.3”D
Drivers	1” horn-loaded tweeter; 1.75” horn-loaded midrange; 12” woofer
Impedance	Approximately 4 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	94.5dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score	2.27
Spinorama Preference Score with Perfect Sub	5.02
Weight	45 lbs (20.4 kg) each
Woofer Cabinet	ported, rear

Check current price at Amazon ($3,198) →Check current price at Crutchfield ($3,198/pair) →Search eBay for Klipsch Heresy IV →

#73 Rockville RockTower 68B: $234.90 per pair Amazon Rockville eBay

Pros: An unusually inexpensive current 3-way tower with dual 6.5-inch woofers, a dedicated 6.5-inch midrange and silk-dome tweeter. Erin’s high-quality Spinorama data measures useful 54Hz extension, and the manufacturer sells each tower directly with free shipping. Measured bass extension of 60.1Hz (-3dB).

Cons: Objective performance is weak: its preference score is only 0.96 without a subwoofer and 3.42 with one, placing it near the bottom of the measured floorstanders. The large cabinet is lightly priced and specified sensitivity is only 87dB despite the multi-driver layout.

Full Rockville RockTower 68B review and specifications →

Bass Extension (-10dB)	43.1Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points)
Bass Extension (-3dB)	60.1Hz (measured, Erin’s Audio Corner via spinorama.org)
Bass Extension (-6dB)	54Hz (measured, Spinorama)
DIY Kit	No
Dimensions	41.7”H x 7.9”W x 10.4”D (1060 x 200 x 265 mm)
Drivers	1-inch silk-dome tweeter, 6.5-inch midrange, dual 6.5-inch woofers
Enclosure	Passive 3-way vented floorstander
Frequency Response	30Hz-20kHz (manufacturer specified)
Impedance	8 ohms
Power Handling	125W RMS / 500W peak
Sensitivity	87dB
Spinorama Preference Score	0.96
Spinorama Preference Score with Perfect Sub	3.42
Weight	55.1 lbs (25.0 kg) each

Check current price at Amazon ($234.90) →Check current price at Rockville ($109.95 each) →Search eBay for Rockville RockTower 68B →

Links
- Rockville RockTower 68B Product Page
Reviews, Comparisons and Sound Samples
- Rockville RockTower 68B Measurements (spinorama.org)
Head-to-Head Comparisons

#74 Bose 901 Series V Discontinued Amazon eBay

Pros: Historically distinctive direct/reflecting architecture uses eight rear-firing and one front-firing full-range drivers to create a very large, room-filling presentation. Erin measured a benign 6.2-ohm minimum impedance, so the raw electrical load is easier than many modern four-ohm speakers. The supplied active equalizer offers user-adjustable tonal balance and is integral to obtaining usable bandwidth. Measured bass extension of 55.8Hz (-3dB), with a measured sensitivity of 81dB.

Cons: Even with the required EQ, Erin measured only about 81dB sensitivity, grossly non-flat response, numerous impedance/resonance irregularities and very high distortion. Output above roughly 90-95dB at his seat became audibly poor; multitone testing reached only about 98dB before the distortion limit. The reflection-dominant radiation prevents precise imaging and makes results strongly room-dependent. It requires the proprietary equalizer and substantial amplifier power despite its benign impedance. Discontinued.

Full Bose 901 Series V review and specifications →

Bass Extension	Strongly dependent on supplied active equalizer and room (measured, Erin’s Audio Corner)
Bass Extension (-10dB)	34.5Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)	55.8Hz (measured, Erin’s Audio Corner)
DIY Kit	No
DSP	External analog active equalizer required
Dimensions	21”H x 21”W x 12.6”D (533.4 x 533.4 x 320.7 mm)
Drivers	Nine full-range drivers: eight rear-firing, one front-firing
Impedance	6.2 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity	Approximately 81dB/2.83V/1m with tested EQ setting (measured, Erin’s Audio Corner)
Spinorama Preference Score	0.43
Spinorama Preference Score with Perfect Sub	2.11
Weight	35.3 lbs (16 kg) each

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