Short answer: the Dynamo 1600X for maximum output, the Monolith M-10 V2 for THX-certified deep bass. The sealed 15-inch Dynamo delivers a forceful, clean, tight low end from 900W RMS and 1800W peak, though its mid-range output is 121.5 dB and it costs $1,606.77. The 10-inch Monolith is THX-certified and ported with 500W RMS reaching 17-20Hz.
Buy the Monoprice Monolith M-10 V2 if you want one new; the MartinLogan Dynamo 1600X is discontinued, so only look for it used.
Still deciding? The full Subwoofers rankings cover every ranked option.
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Specifications Side By Side
| MartinLogan Dynamo 1600X | Monoprice Monolith M-10 V2 | |
|---|---|---|
| Price | $1,606.77 Discontinued | $735.10 |
| Ranked | #3 of 212 in Medium Home Subwoofers (30-75 lbs) | #161 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 15 Hz | 86.2 dB | 93.9 dB |
| Output SPL at 20 Hz | 99.4 dB | 104.8 dB |
| Output SPL at 25 Hz | 103.9 dB | 108.5 dB |
| Output SPL at 31.5 Hz | 111.7 dB | 109.3 dB |
| Output SPL at 40 Hz | 118.4 dB | 109.7 dB |
| Output SPL at 50 Hz | 121.0 dB | 110.1 dB |
| Output SPL at 63 Hz | 121.8 dB | 110.6 dB |
| Output SPL at 80 Hz | 121.0 dB | 110.9 dB |
| Output SPL at 100 Hz | 120.2 dB | 111.2 dB |
| Output SPL at 125 Hz | 119.0 dB | 111.5 dB |
| CEA-2010-A Average (40-80Hz) | 120.5 dB | 110.3 dB |
| Dimensions | 20.1”H x 17.9”W x 19.1”D (510.5 x 454.7 x 485.1 mm) | 20.9”H x 15”W x 18.9”D (530.9 x 381.0 x 480.1 mm) |
| Weight | 56 lbs (25.4 kg) | 72.5 lbs (32.9 kg) |
| Warranty | 3 | 5 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Manufacturer |
| Frequency Response | 20-200Hz, ±3dB | 17-20Hz |
| Amplifier Power | 900W RMS / 1800W peak | 500W RMS |
| Inputs | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) | XLR, RCA, XLR passthrough out |
| Drivers | 15” (381mm) driver | 10” (254mm) driver |
| XLR Input | Yes | Yes |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
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