Short answer: the Rythmik FV15HP. It ranks #55 of 143 subwoofers by sound quality, rated 4.2/5, at $2,127; the SVS PB17-Ultra R-Evolution ranks #86, rated 4.1/5, and costs $2,999, which makes this an easy call rather than a real tradeoff.
The case for the Rythmik FV15HP: A 15 inch ported subwoofer with output matching pricier rivals, plus balanced and RCA inputs for flexible setups. Watch for: Premium price ($2127), ported design room gain dependency, and mid-to-large 114.6 lbs (52 kg) footprint.
The case for the SVS PB17-Ultra R-Evolution: A giant ported 17 inch subwoofer that digs extremely deep and plays earth shaking movie bass in large rooms. The tradeoff: At 166.9 lbs (75.7 kg), or 167 lbs (75.8 kg), with recessed feet that leave little clearance, moving or repositioning this cabinet is a two-person job at minimum.
Buy the Rythmik FV15HP. It is rated higher for sound quality than the SVS PB17-Ultra R-Evolution and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Subwoofers rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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
| Rythmik FV15HP | SVS PB17-Ultra R-Evolution | |
|---|---|---|
| Price | $2,127 | $2,999.00 |
| Ranked | #55 of 143 in Large Home Subwoofers (Over 75 lbs) | #86 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, bottom |
| Output SPL at 12.5 Hz | 92.8 dB | 90.7 dB |
| Output SPL at 15 Hz | 105.1 dB | - |
| Output SPL at 20 Hz | 111.1 dB | 113.9 dB |
| Output SPL at 25 Hz | 116.1 dB | 117.5 dB |
| Output SPL at 31.5 Hz | 120.0 dB | 119.4 dB |
| Output SPL at 40 Hz | 122.5 dB | 120.1 dB |
| Output SPL at 50 Hz | 122.1 dB | 119.7 dB |
| Output SPL at 63 Hz | 121.8 dB | 119.0 dB |
| Output SPL at 80 Hz | 121.4 dB | 118.7 dB |
| Output SPL at 100 Hz | 121.2 dB | 119.8 dB |
| Output SPL at 125 Hz | 121.1 dB | - |
| CEA-2010-A Average (40-80Hz) | 122.0 dB | 119.4 dB |
| Dimensions | 24.5”H x 18.2”W x 24.2”D (622.3 x 463.5 x 615.9 mm) | 20”H x 19.5”W x 21.2”D (508.0 x 495.3 x 538.5 mm) |
| Weight | 115.1 lbs (52.2 kg) | 166.9 lbs (75.7 kg) |
| Warranty | 5/3 | - |
| Cabinet Color | black, white | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Drivers | 15” (381mm) driver | 17” driver, dual voice coil |
| Inputs | XLR (2), RCA (line/LFE) | XLR (balanced, LFE/stereo), RCA (LFE/stereo) |
| XLR Input | Yes | Yes |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Output SPL at 10 Hz | - | 76.7 dB |
| Output SPL at 16 Hz | - | 107.0 dB |
| Frequency Response | - | 15-320Hz, ±3dB |
| Amplifier Power | - | 2800W RMS |
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