Short answer: both are discontinued, so this only matters if you are buying used. Used, the MartinLogan Dynamo 1600X is the better pick: it ranks #3 of 212 subwoofers by sound quality (rated 4.2/5), against #189 (rated 3.2/5) for the Jamo C 912 SUB.
The MartinLogan Dynamo 1600X is the better-sounding pick. A sealed 15 inch subwoofer with forceful, tight bass, front or down firing setup, and app based room correction, now discontinued. Watch for: Output falls to 86.2dB at 15Hz, so the very lowest effects are weaker than the strong midbass numbers suggest.
What the Jamo C 912 SUB does well: A 12 inch ported subwoofer with a front port for flexible placement, for music and movies, now discontinued. The catch: Maximum output in the upper bass trails the Infinity Speakers REFERENCE SUB R12, so it runs out of headroom sooner at high volume.
Buy the MartinLogan Dynamo 1600X only if you find one used in good condition; both are discontinued, and it is the better rated of the two.
Want more options? Browse the full Subwoofers rankings.
A sealed 15 inch subwoofer with forceful, tight bass, front or down firing setup, and app based room correction, now discontinued.
A 12 inch ported subwoofer with a front port for flexible placement, for music and movies, now discontinued.
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Specifications Side By Side
| MartinLogan Dynamo 1600X | Jamo C 912 SUB | |
|---|---|---|
| Price | $1,606.77 Discontinued | $599 Discontinued |
| Ranked | #3 of 212 in Medium Home Subwoofers (30-75 lbs) | #189 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 15 Hz | 86.2 dB | 78.4 dB |
| Output SPL at 20 Hz | 99.4 dB | 88.0 dB |
| Output SPL at 25 Hz | 103.9 dB | 95.5 dB |
| Output SPL at 31.5 Hz | 111.7 dB | 99.0 dB |
| Output SPL at 40 Hz | 118.4 dB | 103.4 dB |
| Output SPL at 50 Hz | 121.0 dB | 106.5 dB |
| Output SPL at 63 Hz | 121.8 dB | 108.6 dB |
| Output SPL at 80 Hz | 121.0 dB | 108.1 dB |
| Output SPL at 100 Hz | 120.2 dB | 106.6 dB |
| Output SPL at 125 Hz | 119.0 dB | 104.9 dB |
| CEA-2010-A Average (40-80Hz) | 120.5 dB | 106.7 dB |
| Dimensions | 20.1”H x 17.9”W x 19.1”D (510.5 x 454.7 x 485.1 mm) | 17.9”H x 14”W x 18.9”D (454.4 x 355.3 x 479.6 mm) |
| Weight | 56 lbs (25.4 kg) | 41.7 lbs (18.9 kg) |
| Warranty | 3 | 5/2 |
| Cabinet Color | black | black, white, wood |
| Country | United States | Denmark |
| Measurement Source | Audioholics | ErinsAudioCorner |
| Frequency Response | 20-200Hz, ±3dB | 29-125Hz |
| Amplifier Power | 900W RMS / 1800W peak | 200W RMS |
| Inputs | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) | - |
| Drivers | 15” (381mm) driver | 12” (305mm) driver |
| XLR Input | Yes | - |
| RCA Input | Yes | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | No | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Aux Input | No | - |
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