Short answer: the Ascend Acoustics Sierra Titan Tower. It ranks #25 of 73 floorstanding speakers by sound quality, rated 4.4/5, at $2,998. The Polk Audio Reserve R700 ranks #33, rated 4.3/5, at $2,398, $600 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the Ascend Acoustics Sierra Titan Tower does well: 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. Watch for: Its listening window response is the least smooth of Ascend’s measured towers, trailing the pricier ELX Ribbon Tower.
The case for the Polk Audio Reserve R700: 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. Watch for: 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.
Buy the Ascend Acoustics Sierra Titan Tower. It is rated higher for sound quality, and the $600 saving on the Polk Audio Reserve R700 is not enough to make up the difference.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Ascend Acoustics Sierra Titan Tower | Polk Audio Reserve R700 | |
|---|---|---|
| Price | $2,998 per pair | $2,398 per pair |
| Ranked | #25 of 73 in Large Size Floorstanding Speakers | #33 of 73 in Large Size Floorstanding Speakers |
| Enclosure | ported | - |
| Drivers | SEAS Titan dome tweeter, 1x 5.25” midrange (sealed sub-chamber), 2x 5.25” mineral filled polypropylene woofers | 2x 8” polypropylene cone woofers, 1x 6.5” turbine cone midrange, 1x 1” Pinnacle ring radiator tweeter |
| Dimensions | 43”H x 7.5”W x 10.5”D (1092 x 190 x 267 mm) | 45”H x 12.6”W x 16.9”D (1143.8 x 320.7 x 428.3 mm) |
| Weight | 45 lbs (20.4 kg) each | 102.1 lbs (46.3 kg) |
| Sensitivity | 88dB @ 2.83V/1m in-room (manufacturer) | 87.5dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal | 4 ohms nominal, 3.5 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Power Handling | 300W continuous, 500W peak | - |
| Frequency Response | 32-27,000Hz typical in-room (manufacturer) | - |
| Bass Extension (-3dB) | 58.6Hz (measured, spinorama.org vendor data) | 40Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 34.6Hz (measured, spinorama.org vendor data) | 31Hz (measured, Erin’s Audio Corner) |
| Warranty | 7 years parts and labor | - |
| Country | United States | - |
| Spinorama Preference Score | 6.05 | 6.38 |
| Spinorama Preference Score with Perfect Sub | 8.00 | 7.83 |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, down-firing |
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Prices on this page were last checked September 29, 2026 at 3:43 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 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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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 MSRP, 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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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