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 REL Acoustics T-7 ranks #139 (rated 3.6/5) and is discontinued, so it is only an option used. The REL Acoustics T-7’s replacement, the REL Acoustics T/7x, is rated 3.6/5 at $1,199.
The SVS SB-3000 is the better-sounding pick. A well made sealed subwoofer with tight, accurate bass and handy app controls, great for music and medium rooms. Watch for: 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.
What the REL Acoustics T-7 does well: A compact 8 inch subwoofer with a passive radiator and REL’s speaker level connection, aimed at music systems. The tradeoff: Output drops to 93.9dB at 25Hz and 74.0dB at 20Hz, so it adds little below about 30Hz and is rated only to 30Hz at -6dB.
Buy the SVS SB-3000. It is rated higher for sound quality and still sold new, while the REL Acoustics T-7 is discontinued.
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 compact 8 inch subwoofer with a passive radiator and REL’s speaker level connection, aimed at music systems.
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Specifications Side By Side
| SVS SB-3000 | REL Acoustics T-7 | |
|---|---|---|
| Price | $1,149.00 | $699 Discontinued |
| Ranked | #15 of 212 in Medium Home Subwoofers (30-75 lbs) | #139 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | passive radiator |
| Output SPL at 15 Hz | 90.3 dB | - |
| Output SPL at 20 Hz | 96.6 dB | 74.0 dB |
| Output SPL at 25 Hz | 101.7 dB | 93.9 dB |
| Output SPL at 31.5 Hz | 107.8 dB | 104.9 dB |
| Output SPL at 40 Hz | 114.6 dB | 111.9 dB |
| Output SPL at 50 Hz | 118.7 dB | 113.3 dB |
| Output SPL at 63 Hz | 120.7 dB | 111.5 dB |
| Output SPL at 80 Hz | 120.9 dB | - |
| Output SPL at 100 Hz | 120.8 dB | - |
| Output SPL at 125 Hz | 120.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 118.7 dB | 112.2 dB (avg of 3/4 bands) |
| Dimensions | 15.6”H x 15.2”W x 15.7”D (396.2 x 386.1 x 398.8 mm) | 13.7”H x 12”W x 13.7”D (349.2 x 304.8 x 349.2 mm) |
| Weight | 54.5 lbs (24.7 kg) | 31.1 lbs (14.1 kg) |
| Warranty | 5 | 3 |
| Cabinet Color | black | - |
| Country | United States | United Kingdom |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 18-270Hz, ±3dB | 30Hz -6dB |
| Amplifier Power | 800W RMS / 2500W peak | 200W RMS |
| Crossover Frequency | 30-200Hz adjustable, 6/12/18/24dB slopes | - |
| Inputs | RCA (unbalanced), USB | - |
| Phase Control | 0°-180° | - |
| Features | Auto/On, 3-12V AC/DC trigger | - |
| Drivers | 13” (330mm) driver | 8” (203mm) driver |
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