Short answer: the SVS SB-3000. It ranks #15 of 212 subwoofers by sound quality, rated 4.1/5, at $1,199; the REL Acoustics T/7x ranks #144, rated 3.6/5, at $1,199. Close enough in price that the sound-quality gap is the deciding factor.
The case for the REL Acoustics T/7x: A compact 8 inch REL subwoofer with a passive radiator and speaker level plus LFE inputs for music and movies at once. The catch: No independent measurements yet, so its output can’t be compared with ranked subwoofers.
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. 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.
Buy the SVS SB-3000. It is rated higher for sound quality than the REL Acoustics T/7x at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Worth knowing: the REL Acoustics T/7x has not been measured yet. Its rating is estimated from related models, with a likely range of 3.4 to 3.8, so treat this verdict as provisional.
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Specifications Side By Side
| REL Acoustics T/7x | SVS SB-3000 | |
|---|---|---|
| Price | $1,199.00 | $1,199.00 |
| Ranked | #144 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated | #15 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Weight | 38.6 lbs (17.5 kg) | 54.5 lbs (24.7 kg) |
| Dimensions | 12.6”H x 14”W x 14.3”D (320 x 356 x 363 mm) | 15.6”H x 15.2”W x 15.7”D (396.2 x 386.1 x 398.8 mm) |
| Warranty | 3 | 5 |
| Enclosure | sealed, passive radiator | sealed |
| Drivers | 8” driver + 10” passive radiator | 13” (330mm) driver |
| Amplifier Power | 200W (Class A/B) | 800W RMS / 2500W peak |
| Frequency Response | 30Hz (-6dB) (Manufacturer specified) | 18-270Hz, ±3dB |
| Country | United Kingdom | United States |
| Output SPL at 15 Hz | - | 90.3 dB |
| Output SPL at 20 Hz | - | 96.6 dB |
| Output SPL at 25 Hz | - | 101.7 dB |
| Output SPL at 31.5 Hz | - | 107.8 dB |
| Output SPL at 40 Hz | - | 114.6 dB |
| Output SPL at 50 Hz | - | 118.7 dB |
| Output SPL at 63 Hz | - | 120.7 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 |
| Cabinet Color | - | black |
| Measurement Source | - | Audioholics |
| 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 |
Where the Ratings Come From
- REL Acoustics T/7x: reviews by The Absolute Sound.
- SVS SB-3000: reviews by Erin’s Audio Corner and Audioholics.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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