Short answer: both are discontinued, and they are rated the same for sound quality (#23 and #25 of 73 subwoofers). Either one is only an option used, so choose on condition and price. If you want one new, the Edifier T5s ranks #2 at $169.99.

What the Polk Audio PSW10 does well: A discontinued affordable 10 inch ported subwoofer, easy to set up and a popular bass add for apartments and small rooms. Watch for: Budget-tier construction, ported room dependency, lower 110.3 dB output, and $249 entry-level positioning.
The case for the MartinLogan Dynamo 700w: A discontinued compact sealed 10 inch subwoofer that adds upper bass weight to movies and music. Watch for: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority.
Buy the Polk Audio PSW10 or the MartinLogan Dynamo 700w, whichever you find used in better condition; both are discontinued. For a new speaker, start with the Edifier T5s instead.
Still deciding? The full Subwoofers rankings cover every ranked option.
A discontinued affordable 10 inch ported subwoofer, easy to set up and a popular bass add for apartments and small rooms.
A discontinued compact sealed 10 inch subwoofer that adds upper bass weight to movies and music.
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Specifications Side By Side
| Polk Audio PSW10 | MartinLogan Dynamo 700w | |
|---|---|---|
| Price | $249.00 Discontinued | $999 Discontinued |
| Ranked | #23 of 73 in Small Home Subwoofers (Under 30 lbs) | #25 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 31.5 Hz | 96.1 dB | 94.6 dB |
| Output SPL at 40 Hz | 104.7 dB | 106.3 dB |
| Output SPL at 50 Hz | 109.7 dB | 110.3 dB |
| Output SPL at 63 Hz | 113.8 dB | 110.5 dB |
| Output SPL at 80 Hz | 113.1 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 | 109.0 dB (avg of 3/4 bands) |
| Dimensions | 14.4”H x 14”W x 16.1”D (365.0 x 355.6 x 409.4 mm) | 12.5”H x 11.7”W x 12.5”D (318.5 x 296.9 x 318.3 mm) |
| Weight | 26 lbs (11.8 kg) | 26.5 lbs (12.0 kg) |
| Warranty | 5/3 | 3 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | ErinsAudioCorner | Brent Butterworth |
| Drivers | 10” (254mm) driver | 10” (254mm) driver |
| Output SPL at 20 Hz | - | 86.3 dB |
| Output SPL at 25 Hz | - | 88.4 dB |
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