The HSU Research VTF-2 MK4 is rated 3.7/5 for sound quality, #94 of 212 Medium Home Subwoofers (30-75 lbs). See all Subwoofers rankings for every top pick.

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Brand: HSU Research
#94 HSU Research VTF-2 MK4: $899 Discontinued eBay
Newer model: the HSU Research VTF-2 MK5, ranked higher, rated 3.9/5, released Sep 2017. See every HSU Research VTF generation.
Pros: A loud ported 12 inch subwoofer with variable tuning and a compact cabinet for its output, now discontinued. Measured output is 112.8dB average from 40 to 80Hz and 101.1dB at 20Hz, from a 250W RMS amplifier and a rating down to 18Hz. Variable port tuning lets you trade extension against output for your room. The bass is tuneful rather than one-note.
Cons: At 29.0 kg and 520.7H x 381.0W x 558.8D mm it is still a big, heavy cabinet. Measured numbers come from the manufacturer rather than an independent lab. It is discontinued, so you would be buying used or choosing its successor.
Is the HSU Research VTF-2 MK4 right for you?
Skip it if
- you need to move it often (29 kg each).
- you want to buy it new: it is discontinued.
| Released | 2011 (15 years ago) |
|---|---|
| Amplifier Power | 250W RMS |
| CEA-2010-A Average (40-80Hz) | 112.8 dB |
| Country | United States |
| Dimensions | 20.5”H x 15”W x 22”D (520.7 x 381.0 x 558.8 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | ported, rear |
| Frequency Response | 18-90Hz |
| Measurement Source | Manufacturer |
| Output SPL at 20 Hz | 101.1 dB |
| Output SPL at 25 Hz | 107.0 dB |
| Output SPL at 31.5 Hz | 110.2 dB |
| Output SPL at 40 Hz | 111.8 dB |
| Output SPL at 50 Hz | 113.5 dB |
| Output SPL at 63 Hz | 113.3 dB |
| Output SPL at 80 Hz | 112.8 dB |
| Warranty | 7/2 |
| Weight | 63.9 lbs (29.0 kg) |
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- These figures are manufacturer-specified rather than independently measured.