Short answer: the MartinLogan Dynamo Foundation 12. Both are rated 3.4/5 for sound quality (#33 and #31 of 73 subwoofers), and the MartinLogan Dynamo Foundation 12 costs $639.99 against $849 for the PSB Alpha S10, and with sound quality even, the cheaper one is the better buy.
The case for the MartinLogan Dynamo Foundation 12: A sealed 12” MartinLogan subwoofer with a 700W peak (350W continuous) Magnitude amplifier, rated 24 to 200Hz (±3dB), with app control, Anthem Room Correction support and XLR inputs, in a 29 lbs (13.2 kg) cabinet. The tradeoff: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured MartinLogan Dynamo 12 (110.6dB in the 40 to 80Hz CEA-2010 bands), which has more amplifier power and an aluminum woofer, so it is placed below it.
What the PSB Alpha S10 does well: 10-inch polypropylene woofer in a rear-ported enclosure powered by a 150W continuous / 210W dynamic Class D amplifier. The catch: Rear bass reflex port requires ample breathing space from back walls to avoid port turbulence.
Buy the MartinLogan Dynamo Foundation 12. Both are rated the same for sound quality, and it costs $209.01 less than the PSB Alpha S10.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: MartinLogan Dynamo Foundation 12 3.0 to 3.5; PSB Alpha S10 3.2 to 3.6). Treat this verdict as provisional.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| MartinLogan Dynamo Foundation 12 | PSB Alpha S10 | |
|---|---|---|
| Price | $639.99 | $849.00 |
| Ranked | #33 of 73 in Small Home Subwoofers (Under 30 lbs) Estimated | #31 of 73 in Small Home Subwoofers (Under 30 lbs) Estimated |
| Country | United States | Canada |
| Warranty | 3 | 5/1 |
| Enclosure | sealed | ported, rear port |
| Drivers | 12” polypropylene woofer | 10” (254mm) polypropylene cone, rubber surround |
| Amplifier Power | 350W continuous (700W peak) | 150W continuous / 210W dynamic (Class D) |
| Frequency Response | 24-200Hz ±3dB (manufacturer specified) | 28Hz - 150Hz (+/- 3dB, manufacturer specified) |
| Dimensions | 16”H x 14.1”W x 14.1”D (406 x 358 x 358 mm) | 14”H x 13”W x 15.7”D (356 x 330 x 399 mm) |
| Weight | 29.1 lbs (13.2 kg) | 30 lbs (13.6 kg) |
Related Speaker Comparisons
How PSB Alpha S10 compares with other leading options:
- PSB Alpha S10 vs Bowers & Wilkins ASW610
- PSB Alpha S10 vs PSB SubSeries BP7
- PSB Alpha S10 vs PSB Alpha S8
- MartinLogan Dynamo Foundation 12 vs Bowers & Wilkins ASW608
- MartinLogan Dynamo Foundation 12 vs MartinLogan Dynamo Foundation 10
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
MartinLogan Dynamo Foundation 12: $639.99 Estimated Amazon eBay
Same family: the MartinLogan Dynamo Foundation 10 (smaller subwoofer, ranked lower, estimated 3.1/5), the MartinLogan Dynamo 10 (larger subwoofer, estimated 3.4/5) and the MartinLogan Dynamo 12 (larger subwoofer, rated 3.5/5). See every MartinLogan Dynamo generation.
Pros: A sealed 12” MartinLogan subwoofer with a 700W peak (350W continuous) Magnitude amplifier, rated 24 to 200Hz (±3dB), with app control, Anthem Room Correction support and XLR inputs, in a 29 lb cabinet.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured MartinLogan Dynamo 12 (110.6dB in the 40 to 80Hz CEA-2010 bands), which has more amplifier power and an aluminum woofer, so it is placed below it.
Full MartinLogan Dynamo Foundation 12 review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| Amplifier Power | 350W continuous (700W peak) |
| Country | United States |
| Dimensions | 16”H x 14.1”W x 14.1”D (406 x 358 x 358 mm) |
| Drivers | 12” polypropylene woofer |
| Enclosure | sealed |
| Frequency Response | 24-200Hz ±3dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 29.1 lbs (13.2 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
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