Ascend Acoustics CMT-340 SE2 vs Arendal 1528 Monitor 8

Last updated: October 15, 2026

Short answer: the Ascend Acoustics CMT-340 SE2. Both are rated 4.4/5 for sound quality (#24 and #23 of 222 bookshelf speakers), and the Ascend Acoustics CMT-340 SE2 costs $798 against $6,000 for the Arendal 1528 Monitor 8, so with nothing between them on sound quality, price settles it.

Ascend Acoustics CMT-340 SE2 vs Arendal 1528 Monitor 8

Why pick the Ascend Acoustics CMT-340 SE2: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.99 preference score with a subwoofer. The tradeoff: Bass rolls off early for the cabinet size, measuring 77.6Hz at -3dB, 64.5Hz at -6dB, and 48.3Hz at -12dB; the preference score without a subwoofer is only 5.33.

The Arendal 1528 Monitor 8 is the deeper-bass option. Three-way design featuring a 28mm tweeter, 5” mid-range, and dual 8” mid-bass drivers in a convertible sealed/ported HDF cabinet, with a supplied port bung for sealed operation near a wall. Its bass reaches about 41Hz before falling 3dB, against 77.6Hz for the Ascend Acoustics CMT-340 SE2. The catch: A dip in the midbase around 100Hz noticeably reduces the “chestiness” of male vocals compared to the reviewer’s reference speaker.

Buy the Ascend Acoustics CMT-340 SE2. Both are rated the same for sound quality, and it costs $5,202 less than the Arendal 1528 Monitor 8.

Want more options? Browse the full Passive Home rankings.

Specifications Side By Side

Ascend Acoustics CMT-340 SE2 Arendal 1528 Monitor 8
Price$798 per pair$6000 per pair
Ranked#24 of 222 in Large Size Bookshelf Speakers#23 of 222 in Large Size Bookshelf Speakers
Bass Extension (-3dB)77.6Hz (measured, spinorama.org)41Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)approximately 53Hz (measured, spinorama.org)26Hz (measured, Erin’s Audio Corner)
DriversTwo 6.5-inch woofers; 27mm soft-dome tweeterDual 8” woofers, 5” midrange, 28mm tweeter
Sensitivity92dB at 2.83V/1m anechoic84.4dB (measured, Erin’s Audio Corner)
Impedance8 ohms nominal4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner)
Power Handling240W continuous; 400W short-term peak-
Dimensions21 x 7.5 x 10.5 in each31.8”H x 11.4”W x 17.6”D (807.7 x 289.6 x 447 mm)
Weight29.1 lbs (13.2 kg) each103.6 lbs (47 kg) each
Spinorama Preference Score5.335.59
Spinorama Preference Score with Perfect Sub7.997.04
DIY KitNoNo
Woofer Cabinet-ported

Frequency Response Compared

Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.

Listening window: the sound arriving straight at you, averaged over a small window around the listening position.
Ascend Acoustics CMT-340 SE2Arendal 1528 Monitor 8
Listening window of the Ascend Acoustics CMT-340 SE2 and Arendal 1528 Monitor 8-24-18-12-60+6dB20501002005001k2k5k10k20k
Estimated in-room response: what a typical room adds: reflections from walls and the floor make it tilt down toward the treble, and a gentle, even tilt is ideal.
Ascend Acoustics CMT-340 SE2Arendal 1528 Monitor 8
Estimated in-room response of the Ascend Acoustics CMT-340 SE2 and Arendal 1528 Monitor 8-24-18-12-60+6dB20501002005001k2k5k10k20k

Measurement data: Ascend Acoustics CMT-340 SE2 (measured by the manufacturer) and Arendal 1528 Monitor 8 (measured by Erin’s Audio Corner), via spinorama.org.

More top alternatives to Arendal 1528 Monitor 8:

Prices on this page were last checked October 15, 2026 at 5:41 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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The Two Speakers In Full

Ascend Acoustics CMT-340 SE2: $798 per pair Ascend Acoustics $798 eBay

Ascend Acoustics CMT-340 SE2 ranking card

Older model: the Ascend Acoustics CMT-340 SE Center (rated 3.7/5). See every Ascend CBM, HTM and CMT generation.

Same family: the Ascend Acoustics CBM-170 SE2 (smaller bookshelf, ranked lower, rated 3.8/5) and the Ascend Acoustics HTM-200SE2 (smaller bookshelf, rated 4.3/5).

Pros: High-quality manufacturer Klippel NFS data shows 0.295dB on-axis average absolute deviation, 0.531 listening-window smoothness, and a strong 7.99 preference score with a subwoofer. Its dual 6.5-inch woofers, 92dB anechoic sensitivity, and 240W continuous power rating support high output and dynamics. Measured bass extension of 77.6Hz (-3dB).

Cons: Bass rolls off early for the cabinet size, measuring 77.6Hz at -3dB, 64.5Hz at -6dB, and 48.3Hz at -12dB; the preference score without a subwoofer is only 5.33. The 4.35 sound-power directivity-index standard deviation also indicates more off-axis variation than the strongest designs, and the rear port needs placement clearance.

ReleasedNov 2022 (3 years ago)
Bass Extension (-10dB)approximately 53Hz (measured, spinorama.org)
Bass Extension (-3dB)77.6Hz (measured, spinorama.org)
DIY KitNo
Dimensions21 x 7.5 x 10.5 in each
DriversTwo 6.5-inch woofers; 27mm soft-dome tweeter
Impedance8 ohms nominal
Power Handling240W continuous; 400W short-term peak
Sensitivity92dB at 2.83V/1m anechoic
Spinorama Preference Score5.33
Spinorama Preference Score with Perfect Sub7.99
Weight29.1 lbs (13.2 kg) each

Arendal 1528 Monitor 8: $6000 per pair Arendal Sound $6000 eBay

Arendal 1528 Monitor 8 ranking card

Same family: the Arendal Sound 1528 Bookshelf 8 (smaller bookshelf, ranked lower, estimated 4.4/5), the Arendal Sound 1528 Tower 8 (floorstanding, estimated 4.5/5) and the Arendal Sound 1528 Center 8 (center, estimated 4.1/5).

Pros: Three-way design featuring a 28mm tweeter, 5” mid-range, and dual 8” mid-bass drivers in a convertible sealed/ported HDF cabinet, with a supplied port bung for sealed operation near a wall. In ported configuration, reaches down to about 35Hz in most rooms (F3 41Hz, F10 26Hz): deep enough that many listeners could skip a subwoofer unless they want output below 40Hz. Extremely low distortion and compression across the board (harmonic, multitone, and both long- and short-term compression testing): among the best the reviewer has tested at this price, beating speakers costing twice as much. Wide, consistent horizontal soundstage of about ±60°. Smooth, non-fatiguing high frequency rather than the elevated “detail” boost common on speakers marketed for resolution. A slight forwardness around 1.5kHz adds a touch of attack without tipping into brightness. Measured bass extension of 41Hz (-3dB), with a measured sensitivity of 84.4dB.

Cons: A dip in the midbase around 100Hz noticeably reduces the “chestiness” of male vocals compared to the reviewer’s reference speaker. A diffraction-related flare in the upper-midrange/lower-treble (around 1.5-2kHz) gives a mild forwardness that benefits from sidewall absorption panels, though it’s not a major issue. Vertical sweet spot is fairly narrow at about ±20°: a bigger consideration for multi-row home theater seating than rivals like the MoFi SourcePoint 8, which manages about ±60°. The MoFi SourcePoint 8, a similarly-priced rival, also has more linear bass with no midbase dip, at the cost of a more elevated top end. Minor resonances appear around 400Hz and 800Hz in measurements, though the reviewer considers them inaudible or insignificant. Very heavy (about 104 lbs each) HDF cabinet requires dedicated, sturdy stands. Low EPDR (dips to about 1.9 ohms in two spots) means a Class AB amplifier needs to comfortably handle a 4-ohm load without overheating; a Class D amp is a safer choice for full-range use.

Released2024 (2 years ago)
Bass Extension (-10dB)26Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)41Hz (measured, Erin’s Audio Corner)
DIY KitNo
Dimensions31.8”H x 11.4”W x 17.6”D (807.7 x 289.6 x 447 mm)
DriversDual 8” woofers, 5” midrange, 28mm tweeter
Impedance4 ohms nominal, 3.8 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity84.4dB (measured, Erin’s Audio Corner)
Spinorama Preference Score5.59
Spinorama Preference Score with Perfect Sub7.04
Weight103.6 lbs (47 kg) each
Woofer Cabinetported