The Q Acoustics Q B12 is rated 3.8/5 for sound quality, #68 of 212 Medium Home Subwoofers (30-75 lbs). See all Subwoofers rankings for every top pick.
Prices on this page were last checked October 29, 2026 at 4:42 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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Brand: Q Acoustics
#68 Q Acoustics Q B12: $664.90 Discontinued eBay
Newer model: the Q Acoustics Q SUB120, ranked lower, estimated 3.8/5, released Mar 2025. See every Q Acoustics Subwoofers generation.
Pros: A sealed 12 inch subwoofer for music and movies that is easy to place in tricky rooms, now discontinued. It has a 220W RMS amplifier and measured output averages about 115dB from 40 to 80Hz, with 98dB at 20Hz and 95dB at 16Hz. A die-cast aluminum heat sink keeps the amplifier cool. The sealed design is more forgiving about placement in difficult rooms than a ported one.
Cons: Rated response starts at 28Hz, and output falls to 95dB at 16Hz, so the deepest effects are limited. At 220W RMS it has less headroom than larger or more powerful subs. It weighs 21.5kg and is about 399mm square. It is discontinued, so it can only be bought used.
| Released | Oct 2019 (7 years ago) |
|---|---|
| Amplifier Power | 220W RMS |
| CEA-2010-A Average (40-80Hz) | 115.2 dB |
| Cabinet Color | black, white |
| Country | United Kingdom |
| Dimensions | 15.7”H x 15.7”W x 17.6”D (398.8 x 398.8 x 447.0 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | sealed |
| Frequency Response | 28-300Hz |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 95.2 dB |
| Output SPL at 20 Hz | 98.4 dB |
| Output SPL at 25 Hz | 104.9 dB |
| Output SPL at 31.5 Hz | 108.5 dB |
| Output SPL at 40 Hz | 111.4 dB |
| Output SPL at 50 Hz | 114.6 dB |
| Output SPL at 63 Hz | 117.1 dB |
| Output SPL at 80 Hz | 117.7 dB |
| Warranty | 2 |
| Weight | 47.4 lbs (21.5 kg) |
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- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
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