Short answer: the MartinLogan Dynamo 1600X is the stronger midbass-output subwoofer, while the SVS SB-3000 reaches lower and offers more precise user control for less. The sealed 15-inch Dynamo delivers 120.5dB across 40 to 80Hz, can be configured forward or down firing, and includes Anthem Room Correction through its app.
The sealed 13-inch SB-3000 trades some 40 to 80Hz output for stronger 15Hz output, a five-year warranty, and three-band parametric EQ with 1Hz adjustment. Its measured average is 118.7dB, but it is considerably smaller and costs $1,199 versus $1,606.77.
Room and listening priorities decide this one. The Dynamo is compelling when higher upper-bass output and ARC integration are valuable; the SB-3000 is the more flexible choice for deep effects and manual calibration.
Buy the MartinLogan Dynamo 1600X if you want the 15-inch driver’s stronger 40 to 80Hz output and Anthem Room Correction.
Buy the SVS SB-3000 if you want deeper 15Hz performance, compact dimensions and detailed onboard EQ at a lower price.
Looking for alternatives? See the complete Subwoofers rankings.
Sealed 15-inch with 900W RMS, 1800W peak delivers forceful clean tight low bass.
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13-inch sealed design with 800W RMS (2500W peak) that Audioholics measured at a 118.7dB CEA-2010-A average from 40-80Hz, and rated by SVS at 18-270Hz within ±3dB.
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Specifications Side By Side
| MartinLogan Dynamo 1600X | SVS SB-3000 | |
|---|---|---|
| Price | $1,606.77 Discontinued | $1,199.00 |
| Ranked | #3 of 212 in Medium Home Subwoofers (30-75 lbs) | #15 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 15 Hz | 86.2 dB | 90.3 dB |
| Output SPL at 20 Hz | 99.4 dB | 96.6 dB |
| Output SPL at 25 Hz | 103.9 dB | 101.7 dB |
| Output SPL at 31.5 Hz | 111.7 dB | 107.8 dB |
| Output SPL at 40 Hz | 118.4 dB | 114.6 dB |
| Output SPL at 50 Hz | 121.0 dB | 118.7 dB |
| Output SPL at 63 Hz | 121.8 dB | 120.7 dB |
| Output SPL at 80 Hz | 121.0 dB | 120.9 dB |
| Output SPL at 100 Hz | 120.2 dB | 120.8 dB |
| Output SPL at 125 Hz | 119.0 dB | 120.7 dB |
| CEA-2010-A Average (40-80Hz) | 120.5 dB | 118.7 dB |
| Dimensions | 20.1”H x 17.9”W x 19.1”D (510.5 x 454.7 x 485.1 mm) | 15.6”H x 15.2”W x 15.7”D (396.2 x 386.1 x 398.8 mm) |
| Weight | 56 lbs (25.4 kg) | 54.5 lbs (24.7 kg) |
| Warranty | 3 | 5 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 20-200Hz, ±3dB | 18-270Hz, ±3dB |
| Amplifier Power | 900W RMS / 1800W peak | 800W RMS / 2500W peak |
| Inputs | RCA (stereo and LFE), XLR (LFE), speaker-level (banana) | RCA (unbalanced), USB |
| Drivers | 15” (381mm) driver | 13” (330mm) 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 | - |
| Crossover Frequency | - | 30-200Hz adjustable, 6/12/18/24dB slopes |
| Phase Control | - | 0°-180° |
| Features | - | Auto/On, 3-12V AC/DC trigger |
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