Short answer: the PSB Alpha S10. It ranks #31 of 73 subwoofers by sound quality, rated 3.4/5, at $849; the Bowers & Wilkins ASW610 ranks #41, rated 3.3/5, and costs $1,000, so there is little reason to consider the other one.
The case for the PSB Alpha S10: 10-inch polypropylene woofer in a rear-ported enclosure powered by a 150W continuous / 210W dynamic Class D amplifier. The tradeoff: Rear bass reflex port requires ample breathing space from back walls to avoid port turbulence.
The case for the Bowers & Wilkins ASW610: 10-inch long-throw paper/aramid fiber driver in a sealed cabinet powered by a 200W Class D amplifier. The tradeoff: 200W amplifier limits dynamic headroom during heavy low-frequency effects.
Buy the PSB Alpha S10. It is rated higher for sound quality than the Bowers & Wilkins ASW610 and costs less, so only choose the other one for a particular feature it does better.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: PSB Alpha S10 3.2 to 3.6; Bowers & Wilkins ASW610 3.1 to 3.5). Treat this verdict as provisional.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| PSB Alpha S10 | Bowers & Wilkins ASW610 | |
|---|---|---|
| Price | $849.00 | $1,000.00 |
| Ranked | #31 of 73 in Small Home Subwoofers (Under 30 lbs) Estimated | #41 of 73 in Small Home Subwoofers (Under 30 lbs) Estimated |
| Country | Canada | United Kingdom |
| Warranty | 5/1 | - |
| Enclosure | ported, rear port | sealed |
| Drivers | 10” (254mm) polypropylene cone, rubber surround | 10” (250mm) paper/aramid fiber cone |
| Amplifier Power | 150W continuous / 210W dynamic (Class D) | 200W (Class D) |
| Frequency Response | 28Hz - 150Hz (+/- 3dB, manufacturer specified) | 27Hz - 140Hz (+/- 3dB, manufacturer specified) |
| Dimensions | 14”H x 13”W x 15.7”D (356 x 330 x 399 mm) | 12.2”H x 12.2”W x 14.8”D (310 x 310 x 375 mm) |
| Weight | 30 lbs (13.6 kg) | 27.6 lbs (12.5 kg) |
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More worthwhile head-to-heads for PSB Alpha S10:
- MartinLogan Dynamo Foundation 12 vs PSB Alpha S10
- PSB Alpha S10 vs PSB SubSeries BP7
- PSB Alpha S10 vs PSB Alpha S8
- Bowers & Wilkins ASW610 vs JL Audio Dominion d108
- Bowers & Wilkins ASW610 vs PSB SubSeries BP7
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Speakers In Full
PSB Alpha S10: $849.00 Estimated Amazon eBay
Same family: the PSB Alpha S8 (smaller subwoofer, ranked lower, estimated 3.2/5).
Pros: 10-inch polypropylene woofer in a rear-ported enclosure powered by a 150W continuous / 210W dynamic Class D amplifier. Extends bass authority down to 28Hz (-3dB) with clean articulation for stereo music and movie soundtracks.
Cons: Rear bass reflex port requires ample breathing space from back walls to avoid port turbulence. Does not include onboard parametric EQ.
Full PSB Alpha S10 review and specifications →
| Released | 2020 (6 years ago) |
|---|---|
| Amplifier Power | 150W continuous / 210W dynamic (Class D) |
| Country | Canada |
| Dimensions | 14”H x 13”W x 15.7”D (356 x 330 x 399 mm) |
| Drivers | 10” (254mm) polypropylene cone, rubber surround |
| Enclosure | ported, rear port |
| Frequency Response | 28Hz - 150Hz (+/- 3dB, manufacturer specified) |
| Warranty | 5/1 |
| Weight | 30 lbs (13.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Bowers & Wilkins ASW610: $1,000.00 Estimated Amazon Crutchfield eBay
Same family: the Bowers & Wilkins ASW608 (smaller subwoofer, ranked lower, estimated 3.2/5) and the Bowers & Wilkins (B&W) ASW610XP (larger subwoofer, rated 3.4/5).
Pros: 10-inch long-throw paper/aramid fiber driver in a sealed cabinet powered by a 200W Class D amplifier. Offers greater air displacement and deeper bass reach down to 27Hz (-3dB) over the Bowers & Wilkins ASW608.
Cons: 200W amplifier limits dynamic headroom during heavy low-frequency effects. Lacks room EQ integration or mobile app calibration.
Full Bowers & Wilkins ASW610 review and specifications →
| Amplifier Power | 200W (Class D) |
|---|---|
| Country | United Kingdom |
| Dimensions | 12.2”H x 12.2”W x 14.8”D (310 x 310 x 375 mm) |
| Drivers | 10” (250mm) paper/aramid fiber cone |
| Enclosure | sealed |
| Frequency Response | 27Hz - 140Hz (+/- 3dB, manufacturer specified) |
| Weight | 27.6 lbs (12.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons