The HSU Research VTF-1 MK3 is rated 3.8/5 for sound quality, #63 of 212 Medium Home Subwoofers (30-75 lbs). See all Subwoofers rankings for every top pick.

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Brand: HSU Research
#63 HSU Research VTF-1 MK3: $749 Discontinued eBay
Older model: the HSU Research VTF-1 MK2 (ranked lower, rated 3.7/5). See every HSU Research VTF-1 generation.
Pros: An affordable ported 10 inch subwoofer with switchable tuning modes and deep bass for smaller rooms, now discontinued. It has a 250W RMS amplifier and reaches down to 25Hz in single port mode, with 93.5dB measured at 20Hz. Measured output averages 114.4dB from 40 to 80Hz, strong for a 10 inch model. The switchable 25Hz, 32Hz and sealed configurations let you tune it to the room.
Cons: The cabinet is 19.1kg and about 50cm tall and 48cm deep, large for a 10 inch subwoofer. Output at 25Hz is 96.2dB, so the lowest effects are noticeably lighter than the midbass. Changing tuning modes means plugging or unplugging the port by hand. It is discontinued, so it can only be bought used or from remaining stock.
| Released | Nov 2016 (9 years ago) |
|---|---|
| Amplifier Power | 250W RMS / 1000W peak |
| CEA-2010-A Average (40-80Hz) | 114.4 dB |
| Country | United States |
| Dimensions | 19.5”H x 14.5”W x 19”D (495.3 x 368.3 x 482.6 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | ported, front |
| Frequency Response | 25Hz (ported) |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 93.5 dB |
| Output SPL at 25 Hz | 96.2 dB |
| Output SPL at 31.5 Hz | 108.6 dB |
| Output SPL at 40 Hz | 113.8 dB |
| Output SPL at 50 Hz | 115.0 dB |
| Output SPL at 63 Hz | 115.2 dB |
| Output SPL at 80 Hz | 113.6 dB |
| Output SPL at 100 Hz | 111.7 dB |
| Output SPL at 125 Hz | 110.4 dB |
| Warranty | 7/2(+3) |
| Weight | 42.1 lbs (19.1 kg) |
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- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.