Short answer: both are discontinued, so this only matters if you are buying used. Used, the Onkyo SKW-204 is the better pick: it ranks #3 of 73 subwoofers by sound quality (rated 3.8/5), against #25 (rated 3.4/5) for the MartinLogan Dynamo 700w. If you want one new, the Edifier T5s ranks #2 at $199.99.
Buy the Onkyo SKW-204 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
| MartinLogan Dynamo 700w | Onkyo SKW-204 | |
|---|---|---|
| Price | $999 Discontinued | $299 Discontinued |
| Ranked | #25 of 73 in Small Home Subwoofers (Under 30 lbs) | #3 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 20 Hz | 86.3 dB | 77.3 dB |
| Output SPL at 25 Hz | 88.4 dB | 90.1 dB |
| Output SPL at 31.5 Hz | 94.6 dB | 103.3 dB |
| Output SPL at 40 Hz | 106.3 dB | 108.7 dB |
| Output SPL at 50 Hz | 110.3 dB | 114.0 dB |
| Output SPL at 63 Hz | 110.5 dB | 119.6 dB |
| CEA-2010-A Average (40-80Hz) | 109.0 dB (avg of 3/4 bands) | 115.9 dB |
| Dimensions | 12.5”H x 11.7”W x 12.5”D (318.5 x 296.9 x 318.3 mm) | 18.6”H x 10.8”W x 16.9”D (472.9 x 274.6 x 428.5 mm) |
| Weight | 26.5 lbs (12.0 kg) | 26 lbs (11.8 kg) |
| Warranty | 3 | 1 |
| Country | United States | Japan |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 10” (254mm) driver | 10” (254mm) driver |
| Output SPL at 80 Hz | - | 121.4 dB |
| Cabinet Color | - | black |
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