Short answer: the Onkyo SKW-204. It ranks #6 of 42 subwoofers at $299; the MartinLogan Dynamo 700w ranks #7 and costs $999, so there is not much of a tradeoff to weigh.
One note: the Onkyo SKW-204 is discontinued, but it still ranks #6 of 42 subwoofers, ahead of most of what is still sold new, so it is worth considering used.
Buy the MartinLogan Dynamo 700w if the price matters more than the ranking. Buy the Onkyo SKW-204 if the ranking matters more than the price.
Specifications Side By Side
| MartinLogan Dynamo 700w | Onkyo SKW-204 | |
|---|---|---|
| Price | $999 | $299 Discontinued |
| Ranked | #7 of 42 in Small Powered Home Subwoofers (Under 30 lbs) | #6 of 42 in Small Powered Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 20 Hz | 86.3 dB | 71.3 dB |
| Output SPL at 25 Hz | 88.4 dB | 84.1 dB |
| Output SPL at 31.5 Hz | 94.6 dB | 97.3 dB |
| Output SPL at 40 Hz | 106.3 dB | 102.7 dB |
| Output SPL at 50 Hz | 110.3 dB | 108.0 dB |
| Output SPL at 63 Hz | 110.5 dB | 113.6 dB |
| CEA-2010-A Average (40-80Hz) | 109.0 dB (avg of 3/4 bands) | 109.9 dB |
| Dimensions | 12.54"H x 11.69"W x 12.53"D (318.5 x 296.9 x 318.3 mm) | 18.62"H x 10.81"W x 16.87"D (472.9 x 274.6 x 428.5 mm) |
| Weight | 26.5 lbs / 12.0 kg | 26 lbs / 11.8 kg |
| Warranty | 3 | - |
| Country | United States | Japan |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 10" (254mm) driver | 10" (254mm) driver |
| Output SPL at 80 Hz | - | 115.4 dB |
| Cabinet Color | - | black |
| Discontinued | - | Yes |
The Two Speakers In Full
MartinLogan Dynamo 700w: $999
| CEA-2010-A Average (40-80Hz) | 109.0 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 12.54"H x 11.69"W x 12.53"D (318.5 x 296.9 x 318.3 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | sealed |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 86.3 dB |
| Output SPL at 25 Hz | 88.4 dB |
| Output SPL at 31.5 Hz | 94.6 dB |
| Output SPL at 40 Hz | 106.3 dB |
| Output SPL at 50 Hz | 110.3 dB |
| Output SPL at 63 Hz | 110.5 dB |
| Warranty | 3 |
| Weight | 26.5 lbs / 12.0 kg |
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Onkyo SKW-204: $299 Discontinued
Cons: Discontinued.
| CEA-2010-A Average (40-80Hz) | 109.9 dB |
|---|---|
| Cabinet Color | black |
| Country | Japan |
| Dimensions | 18.62"H x 10.81"W x 16.87"D (472.9 x 274.6 x 428.5 mm) |
| Discontinued | Yes |
| Drivers | 10" (254mm) driver |
| Enclosure | ported, front |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 71.3 dB |
| Output SPL at 25 Hz | 84.1 dB |
| Output SPL at 31.5 Hz | 97.3 dB |
| Output SPL at 40 Hz | 102.7 dB |
| Output SPL at 50 Hz | 108.0 dB |
| Output SPL at 63 Hz | 113.6 dB |
| Output SPL at 80 Hz | 115.4 dB |
| Weight | 26 lbs / 11.8 kg |
- Buy Used
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.