Short answer: the Pro Audio Technology LFC-24sm. It ranks #4 of 143 subwoofers by sound quality (rated 4.6/5) at $10,000 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.
What the HSU Research VTF-15H MK2 does well: A 15 inch ported subwoofer from a long running series, with strong output for movies at a reasonable price. The tradeoff: Ported enclosure prone to room modes at certain frequencies, mid-large 110.2 lbs (50 kg) size, and $1499 price point.
The Pro Audio Technology LFC-24sm is the better-sounding option. A giant 24 inch ported subwoofer with enormous deep bass output, built for large dedicated cinema rooms. The catch: The 660.4H x 1536.7W x 533.4D mm cabinet and 266.1 lbs (120.7 kg) mass still need deliberate placement and calibration.
Buy the Pro Audio Technology LFC-24sm. It is rated higher for sound quality, and the HSU Research VTF-15H MK2 is discontinued, so it is only available used.
Still deciding? The full Subwoofers rankings cover every ranked option.
A 15 inch ported subwoofer from a long running series, with strong output for movies at a reasonable price.
A giant 24 inch ported subwoofer with enormous deep bass output, built for large dedicated cinema rooms.
Prices on this page were last checked October 31, 2026 at 7:11 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 | Pro Audio Technology LFC-24sm | |
|---|---|---|
| Price | $1,499 Discontinued | $10,000 Passive |
| Ranked | #57 of 143 in Large Home Subwoofers (Over 75 lbs) | #4 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 15 Hz | 101.6 dB | - |
| Output SPL at 20 Hz | 108.4 dB | 123.7 dB |
| Output SPL at 25 Hz | 114.8 dB | 131.4 dB |
| Output SPL at 31.5 Hz | 119.4 dB | 133.6 dB |
| Output SPL at 40 Hz | 122.9 dB | 135.4 dB |
| Output SPL at 50 Hz | 122.5 dB | 136.0 dB |
| Output SPL at 63 Hz | 121.1 dB | 135.2 dB |
| Output SPL at 80 Hz | 120.5 dB | - |
| CEA-2010-A Average (40-80Hz) | 121.8 dB | 135.5 dB (avg of 3/4 bands) |
| Dimensions | 24”H x 18”W x 26”D (609.6 x 457.2 x 660.4 mm) | 26”H x 60.5”W x 21”D (660.4 x 1536.7 x 533.4 mm) |
| Weight | 110 lbs (49.9 kg) | 266.1 lbs (120.7 kg) |
| Warranty | 7/2(+3) | - |
| Cabinet Color | black, wood | black |
| Country | United States | United States |
| Measurement Source | Manufacturer | Brent Butterworth |
| Drivers | 15” (381mm) driver | 24” (610mm) driver |
| Passive | - | Yes |
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