Short answer: the SVS SB-1000 is the stronger value for deep bass, while the Dynamo 700w is the smaller sealed option. Independent CEA-2010 measurements give the SVS a 3.2dB advantage at 25Hz and a 2.5dB advantage at 31.5Hz, despite very similar cabinet weight. The SVS SB-1000 has been replaced by the SVS SB-1000 PRO. If you are buying new, get the SVS SB-1000 PRO.
Both subs are most convincing from 40Hz upward, where their averaged output is nearly tied. The SB-1000’s 12-inch driver gives it more margin on low movie effects, plus it carries a five-year warranty. The MartinLogan’s 10-inch cabinet is a little smaller in every dimension.
Buy the MartinLogan Dynamo 700w if a compact sealed subwoofer and strong upper-bass impact matter more than the lowest octave.
Buy the SVS SB-1000 if you want more measured output below 40Hz from a similarly sized sealed design.
Looking for alternatives? See the complete Subwoofers rankings.
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Specifications Side By Side
| MartinLogan Dynamo 700w | SVS SB-1000 | |
|---|---|---|
| Price | $999 Discontinued | $500 Discontinued |
| Ranked | #25 of 73 in Small Home Subwoofers (Under 30 lbs) | #1 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 20 Hz | 86.3 dB | 95.5 dB |
| Output SPL at 25 Hz | 88.4 dB | 103.1 dB |
| Output SPL at 31.5 Hz | 94.6 dB | 107.4 dB |
| Output SPL at 40 Hz | 106.3 dB | 111.9 dB |
| Output SPL at 50 Hz | 110.3 dB | 118.1 dB |
| Output SPL at 63 Hz | 110.5 dB | 118.6 dB |
| CEA-2010-A Average (40-80Hz) | 109.0 dB (avg of 3/4 bands) | 116.3 dB |
| Dimensions | 12.5”H x 11.7”W x 12.5”D (318.5 x 296.9 x 318.3 mm) | 13.5”H x 13”W x 14”D (342.9 x 330.2 x 355.6 mm) |
| Weight | 26.5 lbs (12.0 kg) | 26.9 lbs (12.2 kg) |
| Warranty | 3 | 5 |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 10” (254mm) driver | 12” (305mm) driver |
| Output SPL at 80 Hz | - | 116.5 dB |
| Cabinet Color | - | black, white |
| Output SPL at 16 Hz | - | 91.5 dB |
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