The XTZ Sound 99 W12S is rated 3.8/5 for sound quality, #61 of 212 Medium Home Subwoofers (30-75 lbs). See all Subwoofers rankings for every top pick.

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Brand: XTZ
#61 XTZ Sound 99 W12S: $1,499 eBay
Pros: A ported 12 inch subwoofer with a strong amplifier, phase control and EQ switches for tuning it to the room. It uses a Bang & Olufsen ICEpower half-kilowatt amplifier and averages 114.5dB from 40 to 80Hz. A sweepable phase knob and EQ1 and EQ2 switches let you tune it to the room. Output reaches 117.4dB at 80Hz, which suits a medium to large room.
Cons: Deep output falls off sharply, with 86.5dB at 25Hz and 74.0dB at 20Hz, so it is weak for the lowest movie effects. At 30.5kg it is heavy for a 12-inch sub, and it costs a lot for this output. It has no app or room correction.
Is the XTZ Sound 99 W12S right for you?
Skip it if
- you need to move it often (30 kg each).
- you want the best value: the higher-rated Monoprice SW-12 costs about $1,134 less.
| Amplifier Power | Not fully specified |
|---|---|
| CEA-2010-A Average (40-80Hz) | 114.5 dB |
| Country | Sweden |
| Dimensions | 19.6”H x 13.8”W x 15.7”D (499.1 x 349.8 x 400.0 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | ported, rear |
| Frequency Response | Not fully specified |
| Measurement Source | Ilkka Rissanen |
| Output SPL at 20 Hz | 74.0 dB |
| Output SPL at 25 Hz | 86.5 dB |
| Output SPL at 31.5 Hz | 97.7 dB |
| Output SPL at 40 Hz | 108.3 dB |
| Output SPL at 50 Hz | 114.9 dB |
| Output SPL at 63 Hz | 117.3 dB |
| Output SPL at 80 Hz | 117.4 dB |
| Weight | 67.2 lbs (30.5 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Ilkka Rissanen; the published figures above come from this ASR subwoofer measurement thread.