MartinLogan Dynamo 700w vs Onkyo SKW-204

Last updated: September 16, 2026

Short answer: the MartinLogan Dynamo 700w, if you are buying new. The Onkyo SKW-204 ranks higher than it (#3 vs #19 of 48 subwoofers, 3.8/5 vs 3.4/5) but is discontinued, so only consider it used; the MartinLogan Dynamo 700w is still sold new at $999.

MartinLogan Dynamo 700w vs Onkyo SKW-204

Buy the MartinLogan Dynamo 700w, since the Onkyo SKW-204 is discontinued and only worth hunting down used.

Still deciding? The full Subwoofers rankings cover every ranked option.

Specifications Side By Side

MartinLogan Dynamo 700w Onkyo SKW-204
Price$999$299 Discontinued
Ranked#19 of 48 in Small Home Subwoofers (Under 30 lbs)#3 of 48 in Small Home Subwoofers (Under 30 lbs)
Enclosuresealedported, front
Output SPL at 20 Hz86.3 dB77.3 dB
Output SPL at 25 Hz88.4 dB90.1 dB
Output SPL at 31.5 Hz94.6 dB103.3 dB
Output SPL at 40 Hz106.3 dB108.7 dB
Output SPL at 50 Hz110.3 dB114.0 dB
Output SPL at 63 Hz110.5 dB119.6 dB
CEA-2010-A Average (40-80Hz)109.0 dB (avg of 3/4 bands)115.9 dB
Dimensions12.5"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)
Weight26.5 lbs (12.0 kg)26 lbs (11.8 kg)
Warranty3-
CountryUnited StatesJapan
Measurement SourceBrent ButterworthBrent Butterworth
Drivers10" (254mm) driver10" (254mm) driver
Output SPL at 80 Hz-121.4 dB
Cabinet Color-black
Discontinued-Yes

More top alternatives to Onkyo SKW-204:

Prices on this page were last checked September 23, 2026 at 11:24 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 700w: $999 eBay

MartinLogan Dynamo 700w ranking card

Pros: Independent CEA-2010 testing records 86.3 dB at 20 Hz and 109.0 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music.

Cons: 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. The 318.5H x 296.9W x 318.3D mm cabinet and 12.0 kg mass still require deliberate placement and calibration.

Full MartinLogan Dynamo 700w review and specifications →

CEA-2010-A Average (40-80Hz)109.0 dB (avg of 3/4 bands)
CountryUnited States
Dimensions12.5"H x 11.7"W x 12.5"D (318.5 x 296.9 x 318.3 mm)
Drivers10" (254mm) driver
Enclosuresealed
Measurement SourceBrent Butterworth
Output SPL at 20 Hz86.3 dB
Output SPL at 25 Hz88.4 dB
Output SPL at 31.5 Hz94.6 dB
Output SPL at 40 Hz106.3 dB
Output SPL at 50 Hz110.3 dB
Output SPL at 63 Hz110.5 dB
Warranty3
Weight26.5 lbs (12.0 kg)
Search eBay for MartinLogan Dynamo 700w →

Onkyo SKW-204: $299 Discontinued eBay

Onkyo SKW-204 ranking card

Pros: Independent CEA-2010 testing records 77.3 dB at 20 Hz and 115.9 dB through 40-80 Hz. The ported, front enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music.

Cons: 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. The 472.9H x 274.6W x 428.5D mm cabinet and 11.8 kg mass still require deliberate placement and calibration. Discontinued.

Full Onkyo SKW-204 review and specifications →

CEA-2010-A Average (40-80Hz)115.9 dB
Cabinet Colorblack
CountryJapan
Dimensions18.6"H x 10.8"W x 16.9"D (472.9 x 274.6 x 428.5 mm)
DiscontinuedYes
Drivers10" (254mm) driver
Enclosureported, front
Measurement SourceBrent Butterworth
Output SPL at 20 Hz77.3 dB
Output SPL at 25 Hz90.1 dB
Output SPL at 31.5 Hz103.3 dB
Output SPL at 40 Hz108.7 dB
Output SPL at 50 Hz114.0 dB
Output SPL at 63 Hz119.6 dB
Output SPL at 80 Hz121.4 dB
Weight26 lbs (11.8 kg)
Search eBay for Onkyo SKW-204 →