Short answer: the MartinLogan Dynamo 700w for the higher ranking, the Klipsch HD Theater 600 for the lower price. The MartinLogan Dynamo 700w ranks #7 of 42 subwoofers at $999. The Klipsch HD Theater 600 ranks #9 at $399, $600 cheaper.
Buy the Klipsch HD Theater 600 if the price matters more than the ranking. Buy the MartinLogan Dynamo 700w if the ranking matters more than the price.
Specifications Side By Side
| Klipsch HD Theater 600 | MartinLogan Dynamo 700w | |
|---|---|---|
| Price | $399 | $999 |
| Ranked | #9 of 42 in Small Powered Home Subwoofers (Under 30 lbs) | #7 of 42 in Small Powered Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, rear | sealed |
| Output SPL at 25 Hz | 87.1 dB | 88.4 dB |
| Output SPL at 31.5 Hz | 98.4 dB | 94.6 dB |
| Output SPL at 40 Hz | 104.9 dB | 106.3 dB |
| Output SPL at 50 Hz | 107.6 dB | 110.3 dB |
| Output SPL at 63 Hz | 112.1 dB | 110.5 dB |
| CEA-2010-A Average (40-80Hz) | 108.2 dB (avg of 3/4 bands) | 109.0 dB (avg of 3/4 bands) |
| Dimensions | 13.9"H x 12.5"W x 12.5"D (353.1 x 317.5 x 317.5 mm) | 12.54"H x 11.69"W x 12.53"D (318.5 x 296.9 x 318.3 mm) |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Weight | 17 lbs / 7.7 kg | 26.5 lbs / 12.0 kg |
| Drivers | 8" (203mm) driver | 10" (254mm) driver |
| Output SPL at 20 Hz | - | 86.3 dB |
| Warranty | - | 3 |
The Two Speakers In Full
Klipsch HD Theater 600: $399
| CEA-2010-A Average (40-80Hz) | 108.2 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 13.9"H x 12.5"W x 12.5"D (353.1 x 317.5 x 317.5 mm) |
| Drivers | 8" (203mm) driver |
| Enclosure | ported, rear |
| Measurement Source | Brent Butterworth |
| Output SPL at 25 Hz | 87.1 dB |
| Output SPL at 31.5 Hz | 98.4 dB |
| Output SPL at 40 Hz | 104.9 dB |
| Output SPL at 50 Hz | 107.6 dB |
| Output SPL at 63 Hz | 112.1 dB |
| Weight | 17 lbs / 7.7 kg |
- Head-to-Head Comparisons
- Links
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 |
- Head-to-Head Comparisons
- Links
As an Amazon Associate I earn from qualifying purchases.
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.