Short answer: the Velodyne Acoustics SPL-1200 Series II over the Polk Audio PSW10. The Velodyne’s 12-inch sealed driver manages a 111.1dB CEA-2010-A average, second only to the pricier SVS SB-1000 PRO among compact subwoofers and well clear of the Polk’s 110.3 dB. Its limits are a small sealed driver that restricts extension below 20 Hz and a 20.9 lbs (9.5 kg) cabinet; the PSW10 is the cheaper, lighter-output alternative.

Buy the Velodyne Acoustics SPL-1200 Series II only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Edifier T5s instead.
Still deciding? The full Subwoofers rankings cover every ranked option.
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Specifications Side By Side
| Polk Audio PSW10 | Velodyne Acoustics SPL-1200 Series II | |
|---|---|---|
| Price | $249.00 Discontinued | $499 Discontinued |
| Ranked | #23 of 73 in Small Home Subwoofers (Under 30 lbs) | #14 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 31.5 Hz | 96.1 dB | 105.0 dB |
| Output SPL at 40 Hz | 104.7 dB | 109.7 dB |
| Output SPL at 50 Hz | 109.7 dB | 111.8 dB |
| Output SPL at 63 Hz | 113.8 dB | 112.0 dB |
| Output SPL at 80 Hz | 113.1 dB | 111.0 dB |
| Output SPL at 100 Hz | 112.2 dB | - |
| Output SPL at 125 Hz | 110.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 110.3 dB | 111.1 dB |
| Dimensions | 14.4”H x 14”W x 16.1”D (365.0 x 355.6 x 409.4 mm) | 14.7”H x 14.2”W x 16.4”D (374.6 x 361.9 x 415.8 mm) |
| Weight | 26 lbs (11.8 kg) | 20.9 lbs (9.5 kg) |
| Warranty | 5/3 | - |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | ErinsAudioCorner | Ilkka Rissanen |
| Drivers | 10” (254mm) driver | 12” (305mm) driver |
| Output SPL at 20 Hz | - | 95.2 dB |
| Output SPL at 25 Hz | - | 100.1 dB |
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