Short answer: the JTR Speakers Captivator 4000ULF. It ranks #6 of 143 subwoofers by sound quality (rated 4.5/5) at $5,699 and is still sold new; the HSU Research VTF-15H MK2 ranks #57 (rated 4.2/5) and is discontinued, so it is only an option used. The HSU Research VTF-15H MK2’s replacement, the HSU Research VTF-TN1, is rated 3.9/5 at $1,249.
Buy the JTR Speakers Captivator 4000ULF. It is rated higher for sound quality; the HSU Research VTF-15H MK2 is no longer sold new.
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
| HSU Research VTF-15H MK2 | JTR Speakers Captivator 4000ULF | |
|---|---|---|
| Price | $1,499 Discontinued | $5,699 each |
| Ranked | #57 of 143 in Large Home Subwoofers (Over 75 lbs) | #6 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 15 Hz | 101.6 dB | 119.3 dB |
| Output SPL at 20 Hz | 108.4 dB | 122.3 dB |
| Output SPL at 25 Hz | 114.8 dB | 126.1 dB |
| Output SPL at 31.5 Hz | 119.4 dB | 129.3 dB |
| Output SPL at 40 Hz | 122.9 dB | 130.7 dB |
| Output SPL at 50 Hz | 122.5 dB | 131.2 dB |
| Output SPL at 63 Hz | 121.1 dB | 130.9 dB |
| Output SPL at 80 Hz | 120.5 dB | 130.6 dB |
| CEA-2010-A Average (40-80Hz) | 121.8 dB | 130.8 dB |
| Dimensions | 24”H x 18”W x 26”D (609.6 x 457.2 x 660.4 mm) | 41”H x 20.5”W x 39.5”D (1041.4 x 520.7 x 1003.3 mm) |
| Weight | 110 lbs (49.9 kg) | 265 lbs (120.2 kg) |
| Warranty | 7/2(+3) | 5/3 |
| Cabinet Color | black, wood | black, custom |
| Country | United States | United States |
| Measurement Source | Manufacturer | Data-bass |
| Drivers | 15” (381mm) driver | 2x 18” (457mm) driver |
| Output SPL at 10 Hz | - | 111.0 dB |
| Output SPL at 12.5 Hz | - | 115.3 dB |
| Output SPL at 100 Hz | - | 130.5 dB |
| Output SPL at 125 Hz | - | 129.5 dB |
| Inputs | - | XLR, RCA |
| 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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