Short answer: the SVS SB-3000. It ranks #15 of 212 subwoofers by sound quality (rated 4.1/5) at $1,149 and is still sold new; the MartinLogan Dynamo 1500X ranks #38 (rated 3.9/5) and is discontinued, so it is only an option used.
The case for the SVS SB-3000: A well made sealed subwoofer with tight, accurate bass and handy app controls, great for music and medium rooms. The catch: Being sealed, it gives up deep-bass output: Audioholics measured 96.6dB at 20Hz and 101.7dB at 25Hz, about 15dB behind the ported SVS PB-3000 from the same series, so a large room or reference-level movie bass may call for a second sub.
The case for the MartinLogan Dynamo 1500X: A sealed 15 inch subwoofer with forceful, clean low bass that can fire forward or down, with room correction for several seats. Watch for: Output drops to 100.4dB at 20Hz and 92.9dB at 12.5Hz, which is typical of a sealed design and leaves less room for the deepest effects than a ported 15 inch.
Buy the SVS SB-3000. It is rated higher for sound quality; the MartinLogan Dynamo 1500X is no longer sold new.
Want more options? Browse the full Subwoofers rankings.
A well made sealed subwoofer with tight, accurate bass and handy app controls, great for music and medium rooms.
A sealed 15 inch subwoofer with forceful, clean low bass that can fire forward or down, with room correction for several seats.
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Specifications Side By Side
| SVS SB-3000 | MartinLogan Dynamo 1500X | |
|---|---|---|
| Price | $1,149.00 | $1,299 Discontinued |
| Ranked | #15 of 212 in Medium Home Subwoofers (30-75 lbs) | #38 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 15 Hz | 90.3 dB | 95.6 dB |
| Output SPL at 20 Hz | 96.6 dB | 100.4 dB |
| Output SPL at 25 Hz | 101.7 dB | 104.4 dB |
| Output SPL at 31.5 Hz | 107.8 dB | 108.3 dB |
| Output SPL at 40 Hz | 114.6 dB | 113.0 dB |
| Output SPL at 50 Hz | 118.7 dB | 117.1 dB |
| Output SPL at 63 Hz | 120.7 dB | 118.3 dB |
| Output SPL at 80 Hz | 120.9 dB | 117.4 dB |
| Output SPL at 100 Hz | 120.8 dB | 116.2 dB |
| Output SPL at 125 Hz | 120.7 dB | 115.1 dB |
| CEA-2010-A Average (40-80Hz) | 118.7 dB | 116.5 dB |
| Dimensions | 15.6”H x 15.2”W x 15.7”D (396.2 x 386.1 x 398.8 mm) | 18.3”H x 16.7”W x 17.6”D (464.8 x 425.4 x 447.0 mm) |
| Weight | 54.5 lbs (24.7 kg) | 52 lbs (23.6 kg) |
| Warranty | 5 | 3 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 18-270Hz, ±3dB | 20Hz+ (with room correction) |
| Amplifier Power | 800W RMS / 2500W peak | 650W RMS / 1300W peak |
| Crossover Frequency | 30-200Hz adjustable, 6/12/18/24dB slopes | - |
| Inputs | RCA (unbalanced), USB | XLR (LFE), RCA (LFE), RCA (stereo), speaker-level |
| Phase Control | 0°-180° | - |
| Features | Auto/On, 3-12V AC/DC trigger | - |
| Drivers | 13” (330mm) driver | 15” (381mm) driver |
| Output SPL at 12.5 Hz | - | 92.9 dB |
| 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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