Short answer: both are discontinued, so this only matters if you are buying used. Used, the Rythmik FV25HP is the better pick: it ranks #23 of 143 subwoofers by sound quality (rated 4.4/5), against #30 (rated 4.3/5) for the JTR Speakers Captivator 1400.
What the Rythmik FV25HP does well: A tall dual 15 inch ported subwoofer with strong, deep bass for big rooms and both balanced and RCA inputs. Watch for: The 1054.1H x 533.4W x 558.8D mm cabinet and 210.1 lbs (95.3 kg) mass make this a serious placement and moving commitment.
What the JTR Speakers Captivator 1400 does well: A low, wide 18 inch ported subwoofer with strong deep bass for movies, easy to tuck under a screen or riser. The catch: The 508.0H x 762.0W x 571.5D mm cabinet and 142 lbs (64.4 kg) mass make this a serious placement and moving commitment.
Buy the Rythmik FV25HP only if you find one used in good condition; both are discontinued, and it is the better rated of the two.
Still deciding? The full Subwoofers rankings cover every ranked option.
Prices on this page were last checked November 14, 2026 at 6:17 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 FV25HP | JTR Speakers Captivator 1400 | |
|---|---|---|
| Price | $2,499 Discontinued | $2,495 Discontinued |
| Ranked | #23 of 143 in Large Home Subwoofers (Over 75 lbs) | #30 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 10 Hz | 99.7 dB | - |
| Output SPL at 12.5 Hz | 108.4 dB | 99.3 dB |
| Output SPL at 15 Hz | 113.2 dB | 111.9 dB |
| Output SPL at 20 Hz | 116.6 dB | 116.1 dB |
| Output SPL at 25 Hz | 119.1 dB | 119.2 dB |
| Output SPL at 31.5 Hz | 122.4 dB | 121.7 dB |
| Output SPL at 40 Hz | 124.7 dB | 124.8 dB |
| Output SPL at 50 Hz | 126.1 dB | 126.4 dB |
| Output SPL at 63 Hz | 126.7 dB | 125.4 dB |
| Output SPL at 80 Hz | 127.3 dB | 124.0 dB |
| Output SPL at 100 Hz | 127.9 dB | 126.0 dB |
| Output SPL at 125 Hz | 127.8 dB | 124.7 dB |
| CEA-2010-A Average (40-80Hz) | 126.2 dB | 125.2 dB |
| Dimensions | 41.5”H x 21”W x 22”D (1054.1 x 533.4 x 558.8 mm) | 20”H x 30”W x 22.5”D (508.0 x 762.0 x 571.5 mm) |
| Weight | 210.1 lbs (95.3 kg) | 142 lbs (64.4 kg) |
| Warranty | 5/3 | 5/3 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Data-bass | Data-bass |
| Drivers | 2x 15” (381mm) driver | 18” (457mm) driver |
| Inputs | XLR (2), RCA (line/LFE) | XLR, RCA |
| 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 |
Where the Ratings Come From
- Rythmik FV25HP: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
- JTR Speakers Captivator 1400: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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