Short answer: the Dynamo 1600X for headroom, the Monoprice SW-12 for budget impact. The sealed 15-inch Dynamo’s 900W RMS and 1800W peak give forceful, clean, tight low bass, but its 121.5 dB mid-range output and $1,606.77 price are the tradeoffs. The 12-inch ported SW-12 hits hard with clean, tight transients at $364.99, though its output capability is lower at 112.3 dB.
Buy the Monoprice SW-12, since the MartinLogan Dynamo 1600X is discontinued and only worth hunting down used.
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Specifications Side By Side
| MartinLogan Dynamo 1600X | Monoprice SW-12 | |
|---|---|---|
| Price | $1,606.77 Discontinued | $364.99 |
| Ranked | #3 of 212 in Medium Home Subwoofers (30-75 lbs) | #6 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 15 Hz | 86.2 dB | - |
| Output SPL at 20 Hz | 99.4 dB | 102.7 dB |
| Output SPL at 25 Hz | 103.9 dB | 111.1 dB |
| Output SPL at 31.5 Hz | 111.7 dB | 115.2 dB |
| Output SPL at 40 Hz | 118.4 dB | 119.0 dB |
| Output SPL at 50 Hz | 121.0 dB | 119.7 dB |
| Output SPL at 63 Hz | 121.8 dB | 122.9 dB |
| Output SPL at 80 Hz | 121.0 dB | 123.0 dB |
| Output SPL at 100 Hz | 120.2 dB | - |
| Output SPL at 125 Hz | 119.0 dB | - |
| CEA-2010-A Average (40-80Hz) | 120.5 dB | 121.2 dB |
| Dimensions | 20.1”H x 17.9”W x 19.1”D (510.5 x 454.7 x 485.1 mm) | 14.9”H x 18.3”W x 19.1”D (378.5 x 464.8 x 485.1 mm) |
| Weight | 56 lbs (25.4 kg) | 50.7 lbs (23.0 kg) |
| Warranty | 3 | 1 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 20-200Hz, ±3dB | 35-150Hz, -10dB |
| Amplifier Power | 900W RMS / 1800W peak | 400W RMS / 600W peak |
| 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 | - |
| Output SPL at 16 Hz | - | 90.6 dB |
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