Short answer: the Ascend Acoustics Sierra Titan Tower. It ranks #45 of 228 floorstanding speakers by sound quality, rated 4.4/5, at $2,998. The Polk Audio Reserve R700 ranks #65, 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 Ascend Acoustics ELX Ribbon Tower.
The Polk Audio Reserve R700 is the deeper-bass pick. 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. Its bass reaches about 40Hz before falling 3dB, against 58.6Hz for the Ascend Acoustics Sierra Titan Tower. 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.
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.
Ascend Acoustics $2,998 eBay
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.
Amazon $1,199.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| Ascend Acoustics Sierra Titan Tower | Polk Audio Reserve R700 | |
|---|---|---|
| Price | $2,998 per pair | $2,398 per pair |
| Ranked | #45 of 228 in Large Size Floorstanding Speakers | #65 of 228 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 |
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.
Measurement data: Ascend Acoustics Sierra Titan Tower (measured by the manufacturer) and Polk Audio Reserve R700 (measured by Erin’s Audio Corner), via spinorama.org.
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