Short answer: the Rythmik F18, if you are buying new. The Reaction Audio PV-15X ranks higher than it (#22 vs #85 of 143 subwoofers, 4.4/5 vs 4.1/5) but is discontinued, so only consider it used; the Rythmik F18 is still sold new at $2,344.
Buy the Rythmik F18, since the Reaction Audio PV-15X is discontinued and only worth hunting down used.
Still deciding? The full Subwoofers rankings cover every ranked option.
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
| Reaction Audio PV-15X | Rythmik F18 | |
|---|---|---|
| Price | $1,999 Passive, Discontinued | $2,344 |
| Ranked | #22 of 143 in Large Home Subwoofers (Over 75 lbs) | #85 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, rear | sealed |
| Output SPL at 15 Hz | 105.3 dB | 102.0 dB |
| Output SPL at 20 Hz | 111.3 dB | 106.2 dB |
| Output SPL at 25 Hz | 116.1 dB | 110.9 dB |
| Output SPL at 31.5 Hz | 119.8 dB | 114.3 dB |
| Output SPL at 40 Hz | 125.3 dB | 117.1 dB |
| Output SPL at 50 Hz | 126.8 dB | 119.1 dB |
| Output SPL at 63 Hz | 126.1 dB | 120.5 dB |
| Output SPL at 80 Hz | 126.5 dB | 121.2 dB |
| Output SPL at 100 Hz | 126.4 dB | 121.4 dB |
| Output SPL at 125 Hz | 126.1 dB | 121.4 dB |
| CEA-2010-A Average (40-80Hz) | 126.2 dB | 119.5 dB |
| Dimensions | 18”H x 22”W x 29”D (457.2 x 558.8 x 736.6 mm) | 20.5”H x 20.5”W x 21”D (520.7 x 520.7 x 533.4 mm) |
| Measurement Source | Data-bass | Data-bass |
| Weight | 149.9 lbs (68 kg) | 115.1 lbs (52.2 kg) |
| Drivers | 15” (381mm) driver | 18” (457mm) driver |
| Passive | Yes | - |
| Output SPL at 10 Hz | - | 93.7 dB |
| Output SPL at 12.5 Hz | - | 97.4 dB |
| Warranty | - | 5/3 |
| Cabinet Color | - | black |
| Country | - | United States |
| Inputs | - | XLR (2), RCA (line/LFE) |
| XLR Input | - | Yes |
| RCA Input | - | Yes |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | No |
| HDMI Input | - | No |
| AES Input | - | No |
| Aux Input | - | No |
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