The REL Acoustics S/550 ranks #147 out of 202 total Medium Home Subwoofers (30-75 lbs) for sound quality. See all Subwoofers rankings for every top pick.
Brand: REL Acoustics
Prices on this page were last checked October 7, 2026 at 9:25 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#147 REL Acoustics S/550: $3,299.00 Estimated Audio Advice eBay
Same family: the REL Acoustics S/850 (larger subwoofer, ranked higher, estimated 3.7/5), the REL Acoustics Carbon Special Black Label (larger subwoofer, estimated 3.9/5) and the REL Acoustics 212 Black Label (larger subwoofer, estimated 4.2/5).
Pros: The smallest model in REL’s 2025 Serie S, replacing the S/510: a 10” CarbonAlloy active driver and a 12” down-firing passive radiator driven by a 550W Linear Class D amplifier, reaching 19Hz (-6dB). It includes REL’s high-level speaker connection for integrating with stereo amplifiers.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from REL’s measured R-528 (112.8dB in three of the four 40 to 80Hz CEA-2010 bands) and its sibling S/850. It is placed below the larger S/850, and at 31.7kg it is heavy for a 10” sub.
| Amplifier Power | 550W Linear Class D |
|---|---|
| Dimensions | 16.1”H x 15.7”W x 18.3”D (410 x 400 x 464 mm) |
| Drivers | 10” CarbonAlloy driver, 12” down-firing passive radiator |
| Enclosure | passive radiator |
| Frequency Response | 19Hz -6dB (manufacturer specified) |
| Weight | 69.9 lbs (31.7 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.