Coverage note. Speaker Ranking currently covers 14 REL Acoustics models across subwoofers. These are the products in our database, not a complete list of everything REL Acoustics makes.
What this page covers. The REL Acoustics models ranked here span subwoofers, including REL Acoustics HT/1205 MKII, REL Acoustics T/9x and REL Acoustics R-528. Use each model’s category position to compare it with alternatives of the same size and use case.
This page lists all 14 REL Acoustics speakers ranked on this site across subwoofers. Each model is shown in the category where it competes, with its current rank and the size of that ranking.
Use the category position rather than the brand name alone: speakers from the same manufacturer can perform very differently by size, price and product family.
Prices on this page were last checked October 15, 2026 at 5:41 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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Quick Navigation
- Small Home Subwoofers (Under 30 lbs)
- Medium Home Subwoofers (30-75 lbs)
- Large Home Subwoofers (Over 75 lbs)
- Discontinued REL Acoustics Models
- Product Line History
Small Home Subwoofers (Under 30 lbs)
Ranked #73 of 73 in Small Home Subwoofers (Under 30 lbs) - REL Acoustics Tzero MKIII: $549.00 Amazon $549.00 eBay
Pros: Independent CEA-2010 testing records 89.2 dB through 40-80 Hz. The sealed enclosure with 6.5” (165mm) driver is intended to add useful bass support without a full-size cabinet.
Cons: Without a published 20 Hz output result, deep-bass capability is less certain than its midbass figure. The 241.3H x 215.9W x 266.7D mm cabinet and 6.8 kg mass still need careful placement and calibration.
Full REL Acoustics Tzero MKIII review and specifications →
| Released | Oct 2020 (6 years ago) |
|---|---|
| CEA-2010-A Average (40-80Hz) | 89.2 dB |
| Cabinet Color | black, white |
| Country | United Kingdom |
| Dimensions | 9.5”H x 8.5”W x 10.5”D (241.3 x 215.9 x 266.7 mm) |
| Drivers | 6.5” (165mm) driver |
| Enclosure | sealed |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 25 Hz | 70.4 dB |
| Output SPL at 31.5 Hz | 76.6 dB |
| Output SPL at 40 Hz | 83.7 dB |
| Output SPL at 50 Hz | 89.7 dB |
| Output SPL at 63 Hz | 91.5 dB |
| Output SPL at 80 Hz | 92.1 dB |
| Output SPL at 100 Hz | 90.8 dB |
| Warranty | 3 |
| Weight | 15 lbs (6.8 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Medium Home Subwoofers (30-75 lbs)
Ranked #45 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics HT/1205 MKII: $899.00 Amazon $899.00 eBay
Same family: the REL Acoustics HT/1003 MKII (smaller subwoofer, ranked lower, estimated 3.7/5) and the REL Acoustics HT/1510 Predator II (larger subwoofer, rated 4.1/5).
Pros: High-output 12-inch CarbonGlas driver paired with a 500W RMS NextGen5 Class D amplifier in a compact sealed cabinet. Provides deep bass extension down to 22Hz (-6dB) and strong dynamic impact for dedicated cinema setups.
Cons: Lacks high-level input connectivity and digital parametric EQ filters. As a sealed design, infrasonic output below 20Hz trails similarly priced ported alternatives.
Full REL Acoustics HT/1205 MKII review and specifications →
| Released | Oct 2022 (4 years ago) |
|---|---|
| Amplifier Power | 500W RMS (NextGen5 Class D) |
| Country | United Kingdom |
| Dimensions | 16.3”H x 15.2”W x 17.2”D (413 x 387 x 438 mm) |
| Drivers | 12” (300mm) CarbonGlas cone, inverted carbon fiber dust cap |
| Enclosure | sealed |
| Frequency Response | 22Hz at -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 43.2 lbs (19.6 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #47 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics T/9x: $1,549.00 Amazon $1,549.00 eBay
Same family: the REL Acoustics T/5x (smaller subwoofer, ranked lower, estimated 3.5/5) and the REL Acoustics T/7x (smaller subwoofer, ranked lower, estimated 3.6/5). See every REL T Series generation.
Pros: Flagship of the Serie T/x line pairing a front-firing 10-inch FibreAlloy driver with a down-firing 10-inch passive radiator powered by a 300W Class A/B amplifier. Extends reach down to 27Hz at -6dB with fast musical transient speed.
Cons: Passive radiator configuration requires careful boundary positioning away from corners to avoid room mode excitation. Commands a premium price without onboard DSP or smartphone app calibration.
Full REL Acoustics T/9x review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Amplifier Power | 300W RMS (Class A/B) |
| Country | United Kingdom |
| Dimensions | 13.4”H x 15.2”W x 15.5”D (340 x 387 x 393 mm) |
| Drivers | 10” (254mm) active FibreAlloy driver, 10” (254mm) down-firing passive radiator |
| Enclosure | passive radiator |
| Frequency Response | 27Hz at -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 45.4 lbs (20.6 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #105 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics HT/1003 MKII: $624.44 Amazon $624.44 eBay
Same family: the REL Acoustics HT/1205 MKII (larger subwoofer, ranked higher, estimated 3.9/5) and the REL Acoustics HT/1510 Predator II (larger subwoofer, rated 4.1/5).
Pros: Dedicated home theater design with a front-firing 10-inch CarbonGlas driver and NextGen5 300W Class D amplifier. Delivers energetic, punchy bass response down to 24Hz (-6dB) in a compact, braced sealed cabinet.
Cons: Omits REL traditional high-level speaker wire input, connecting exclusively via line-level RCA/LFE. Sealed 10-inch cabinet runs into compression on sub-25Hz movie bursts compared to 12-inch and 15-inch models.
Full REL Acoustics HT/1003 MKII review and specifications →
| Released | Sep 2022 (4 years ago) |
|---|---|
| Amplifier Power | 300W RMS (NextGen5 Class D) |
| Country | United Kingdom |
| Dimensions | 14.3”H x 14.3”W x 15.5”D (362 x 362 x 393 mm) |
| Drivers | 10” (250mm) CarbonGlas cone, inverted carbon fiber dust cap |
| Enclosure | sealed |
| Frequency Response | 24Hz at -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 34.2 lbs (15.5 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #110 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics S/850: $3,999.00 REL Acoustics $3,999.00 eBay
Older model: the REL Acoustics R-528 (ranked higher, rated 3.7/5). See every REL S and Reference Series generation.
Same family: the REL Acoustics S/550 (smaller subwoofer, ranked lower, estimated 3.5/5), 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: Front-firing 12 inch carbon and aluminum driver plus a down-firing 12 inch passive radiator, driven by an 850W RMS Class D amplifier (1,000W peak). REL rates it at 19Hz at the -6dB point. High level Speakon, RCA and LFE RCA/XLR inputs, and REL’s Airship wireless option, make it easy to blend with stereo and theater systems.
Cons: No independent measurements yet, so its output can’t be compared with ranked subwoofers; the rating is estimated from the measured REL Acoustics R-528, an older 12 inch REL that averaged 112.8dB in the CEA-2010 bands but fell to 92.7dB at 25Hz. At 42.5 kg it is very heavy, and it costs far more than measured 12 inch subwoofers with more output.
Full REL Acoustics S/850 review and specifications →
| Released | Sep 2025 (1 year ago) |
|---|---|
| Amplifier Power | 850W RMS (1,000W peak) |
| Cabinet Color | black, white |
| Country | United Kingdom |
| Dimensions | 16.1”H x 19.2”W x 21.3”D (410 x 488 x 540 mm) |
| Drivers | 12” (305mm) driver, 12” passive radiator |
| Enclosure | passive radiator |
| Frequency Response | 19Hz (-6dB, manufacturer specified) |
| Warranty | 3 |
| Weight | 93.7 lbs (42.5 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #144 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics T/7x: $1,199.00 Amazon $1,199.00 eBay
Older models: the REL Acoustics T/7i (ranked lower, estimated 3.6/5) and the REL Acoustics T-7 (ranked higher, rated 3.6/5). See every REL T Series generation.
Same family: the REL Acoustics T/5x (smaller subwoofer, ranked lower, estimated 3.5/5) and the REL Acoustics T/9x (larger subwoofer, ranked higher, estimated 3.9/5).
Pros: Sealed subwoofer with a front-firing 8-inch driver and a down-firing 10-inch passive radiator, driven by a 200W Class A/B amplifier. REL rates extension to 30Hz at -6dB. A high-level speaker-wire input and an RCA/LFE input can be connected at the same time for music and movies.
Cons: No independent measurements yet, so its output can’t be compared with ranked subwoofers. There is no app, EQ or room correction, and an 8-inch driver limits output in a large room.
Full REL Acoustics T/7x review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Amplifier Power | 200W (Class A/B) |
| Country | United Kingdom |
| Dimensions | 12.6”H x 14”W x 14.3”D (320 x 356 x 363 mm) |
| Drivers | 8” driver + 10” passive radiator |
| Enclosure | sealed, passive radiator |
| Frequency Response | 30Hz (-6dB) (Manufacturer specified) |
| Warranty | 3 |
| Weight | 38.6 lbs (17.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #151 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics T/5x: $699.00 Amazon $699.00 eBay
Same family: the REL Acoustics T/7x (larger subwoofer, ranked higher, estimated 3.6/5) and the REL Acoustics T/9x (larger subwoofer, ranked higher, estimated 3.9/5). See every REL T Series generation.
Pros: Compact sealed enclosure with a down-firing 8-inch long-throw FibreAlloy driver powered by a 125W Class A/B amplifier. Includes REL signature high-level Neutrik Speakon input alongside RCA/LFE inputs for seamless stereo music integration.
Cons: Single 8-inch sealed driver rolls off below 32Hz (-6dB) and provides limited headroom for visceral home theater low-frequency effects in medium to large rooms. Lacks onboard app control or parametric EQ.
Full REL Acoustics T/5x review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Amplifier Power | 125W RMS (Class A/B) |
| Country | United Kingdom |
| Dimensions | 11.8”H x 12.1”W x 12.3”D (300 x 307 x 313 mm) |
| Drivers | 8” (200mm) down-firing long-throw FibreAlloy cone |
| Enclosure | sealed |
| Frequency Response | 32Hz at -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 31.5 lbs (14.3 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #155 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics S/550: $3,299.00 Audio Advice $3,299.00 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). See every REL S and Reference Series generation.
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 the measured REL Acoustics R-528 (112.8dB in three of the four 40 to 80Hz CEA-2010 bands) and its sibling REL Acoustics S/850. It is placed below the larger REL Acoustics S/850, and at 31.7kg it is heavy for a 10” sub.
Full REL Acoustics S/550 review and specifications →
| Released | Oct 2025 (1 year ago) |
|---|---|
| Amplifier Power | 550W Linear Class D |
| Country | United Kingdom |
| 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) |
| Warranty | 3 |
| Weight | 69.9 lbs (31.7 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Large Home Subwoofers (Over 75 lbs)
Ranked #75 of 143 in Large Home Subwoofers (Over 75 lbs) - REL Acoustics 212 Black Label: $5,999.00 Audio Advice $5,999.00 eBay
Same family: the REL Acoustics S/550 (smaller subwoofer, estimated 3.5/5), the REL Acoustics S/850 (smaller subwoofer, estimated 3.7/5) and the REL Acoustics Carbon Special Black Label (smaller subwoofer, ranked lower, estimated 3.9/5). See every REL S and Reference Series generation.
Pros: REL’s largest Serie S subwoofer: two 12” CarbonAlloy active drivers and two 12” passive radiators, over 450 square inches of cone area, driven by a 1000W amplifier and reaching 18Hz (-6dB).
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured REL Acoustics HT/1510 Predator II (118.1dB in the 40 to 80Hz CEA-2010 bands): two active 12” drivers and two passive radiators should add several dB over it. It weighs 61kg.
Full REL Acoustics 212 Black Label review and specifications →
| Released | Sep 2025 (1 year ago) |
|---|---|
| Amplifier Power | 1000W RMS |
| Country | United Kingdom |
| Dimensions | 33.1”H x 14.3”W x 20.6”D (840 x 362 x 523 mm) |
| Drivers | 2 x 12” CarbonAlloy drivers, 2 x 12” passive radiators |
| Enclosure | passive radiator |
| Frequency Response | 18Hz -6dB (manufacturer specified) |
| Warranty | 3 |
| Weight | 134 lbs (60.8 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Ranked #98 of 143 in Large Home Subwoofers (Over 75 lbs) - REL Acoustics HT/1510 Predator II: $2,199.00 Amazon $2,199.00 eBay
Same family: the REL Acoustics HT/1003 MKII (smaller subwoofer, estimated 3.7/5) and the REL Acoustics HT/1205 MKII (smaller subwoofer, estimated 3.9/5).
Pros: Independent CEA-2010 testing records 98.0 dB at 20 Hz and 118.1 dB through 40-80 Hz. The sealed enclosure with 15” (381mm) driver delivers substantial upper-bass output for movie effects and music.
Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 457.2H x 541.0W x 492.8D mm cabinet and 45.2 kg mass still require deliberate placement and calibration.
Full REL Acoustics HT/1510 Predator II review and specifications →
| Released | Jun 2022 (4 years ago) |
|---|---|
| CEA-2010-A Average (40-80Hz) | 118.1 dB |
| Cabinet Color | black |
| Country | United Kingdom |
| Dimensions | 18”H x 21.3”W x 19.4”D (457.2 x 541.0 x 492.8 mm) |
| Drivers | 15” (381mm) driver |
| Enclosure | sealed |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 91.4 dB |
| Output SPL at 20 Hz | 98.0 dB |
| Output SPL at 25 Hz | 104.4 dB |
| Output SPL at 31.5 Hz | 111.1 dB |
| Output SPL at 40 Hz | 116.9 dB |
| Output SPL at 50 Hz | 118.5 dB |
| Output SPL at 63 Hz | 118.5 dB |
| Output SPL at 80 Hz | 118.4 dB |
| Output SPL at 100 Hz | 118.5 dB |
| Output SPL at 125 Hz | 118.0 dB |
| Warranty | 3 |
| Weight | 99.6 lbs (45.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- REL Acoustics HT/1510 Predator II vs Outlaw Audio Ultra-X13
- REL Acoustics HT/1510 Predator II vs SVS PB17-Ultra R-Evolution
- REL Acoustics HT/1510 Predator II vs SVS PB12-Plus
- REL Acoustics HT/1510 Predator II vs SVS PB-5000 R-Evolution
- REL Acoustics HT/1510 Predator II vs HSU Research VTF-3 MK5 HP
- REL Acoustics HT/1510 Predator II vs HSU Research VTF-15H MK2
- REL Acoustics HT/1510 Predator II vs Monoprice Monolith 16 THX Ultra
- REL Acoustics HT/1510 Predator II vs JTR Speakers Captivator S2
Ranked #124 of 143 in Large Home Subwoofers (Over 75 lbs) - REL Acoustics Carbon Special Black Label: $4,999.00 ListenUp $4,999.00 eBay
Same family: the REL Acoustics S/550 (smaller subwoofer, estimated 3.5/5), the REL Acoustics S/850 (smaller subwoofer, estimated 3.7/5) and the REL Acoustics 212 Black Label (larger subwoofer, ranked higher, estimated 4.2/5). See every REL S and Reference Series generation.
Pros: A Serie S flagship with an all-carbon fiber 12” active driver and a 12” down-firing passive radiator, driven by a 900W Linear Class D amplifier and reaching 19Hz (-6dB) in-room.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured REL Acoustics HT/1510 Predator II (118.1dB in the 40 to 80Hz CEA-2010 bands) and REL Acoustics R-528. It weighs 44.5kg.
Full REL Acoustics Carbon Special Black Label review and specifications →
| Released | Oct 2025 (1 year ago) |
|---|---|
| Amplifier Power | 900W Linear Class D |
| Country | United Kingdom |
| Dimensions | 16.1”H x 19.2”W x 22.2”D (410 x 488 x 565 mm) |
| Drivers | 12” carbon fiber driver, 12” down-firing passive radiator |
| Enclosure | passive radiator |
| Frequency Response | 19Hz -6dB in-room (manufacturer specified) |
| Warranty | 3 |
| Weight | 98.1 lbs (44.5 kg) |
- Links
- 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.
- Head-to-Head Comparisons
Discontinued REL Acoustics Models
Still ranked, and often still worth buying used, but no longer in production. Check availability before planning around one of these.
Medium Home Subwoofers (30-75 lbs)
Ranked #95 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics R-528: $1,999 Discontinued eBay
Newer model: the REL Acoustics S/850, ranked lower, estimated 3.7/5, released Sep 2025. See every REL S and Reference Series generation.
Pros: 12-inch carbon-fiber passive radiator with 500W RMS Class D amp reaches 21Hz. Fast impulse response best in REL series. Breathtaking bass reach and low distortion in compact package. Speed and detail-oriented musicality. Premium fit and finish.
Cons: Discontinued.
Full REL Acoustics R-528 review and specifications →
| Released | 2010 (16 years ago) |
|---|---|
| Amplifier Power | 500W RMS |
| CEA-2010-A Average (40-80Hz) | 112.8 dB (avg of 3/4 bands) |
| Country | United Kingdom |
| Dimensions | 17.5”H x 15.5”W x 17.2”D (444.5 x 393.7 x 436.9 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | passive radiator |
| Frequency Response | 21Hz-6dB |
| Measurement Source | Brent Butterworth |
| Output SPL at 25 Hz | 92.7 dB |
| Output SPL at 31.5 Hz | 106.5 dB |
| Output SPL at 40 Hz | 111.0 dB |
| Output SPL at 50 Hz | 112.7 dB |
| Output SPL at 63 Hz | 114.6 dB |
| Warranty | 3 |
| Weight | 58 lbs (26.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
Ranked #139 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics T-7: $699 Discontinued eBay
Newer model: the REL Acoustics T/7x, ranked lower, estimated 3.6/5, released Apr 2021. See every REL T Series generation.
Pros: Compact 8-inch with 200W RMS stays extremely solid and composed at high volumes. Fast agile response ideal for music with speed and depth. No overhang or bloat. Excellent Speakon connectivity and build quality.
Cons: Discontinued.
Full REL Acoustics T-7 review and specifications →
| Released | 2011 (15 years ago) |
|---|---|
| Amplifier Power | 200W RMS |
| CEA-2010-A Average (40-80Hz) | 112.2 dB (avg of 3/4 bands) |
| Country | United Kingdom |
| Dimensions | 13.7”H x 12”W x 13.7”D (349.2 x 304.8 x 349.2 mm) |
| Drivers | 8” (203mm) driver |
| Enclosure | passive radiator |
| Frequency Response | 30Hz -6dB |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 74.0 dB |
| Output SPL at 25 Hz | 93.9 dB |
| Output SPL at 31.5 Hz | 104.9 dB |
| Output SPL at 40 Hz | 111.9 dB |
| Output SPL at 50 Hz | 113.3 dB |
| Output SPL at 63 Hz | 111.5 dB |
| Warranty | 3 |
| Weight | 31.1 lbs (14.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
Ranked #148 of 212 in Medium Home Subwoofers (30-75 lbs) - REL Acoustics T/7i: $999 Discontinued eBay
Newer model: the REL Acoustics T/7x, ranked higher, estimated 3.6/5, released Apr 2021.
Older model: the REL Acoustics T-7 (ranked higher, rated 3.6/5). See every REL T Series generation.
Pros: The 2015 T/i replacement for the REL Acoustics T-7, pairing an 8” active driver with a 10” down-firing passive radiator and a 200W amplifier, in a larger, better-braced cabinet. REL’s high-level input lets it blend with a stereo amplifier’s own speaker outputs.
Cons: No independent measurements yet, so its output can’t be compared with ranked subwoofers. The Absolute Sound found the REL Acoustics T/7x that replaced it weightier, with more extension and better decay. Discontinued.
Full REL Acoustics T/7i review and specifications →
| Released | Feb 2017 (9 years ago) |
|---|---|
| Amplifier Power | 200W (Class A/B) |
| Country | United Kingdom |
| Dimensions | 14.3”H x 12”W x 15”D (362 x 305 x 382 mm) |
| Drivers | 1x 8” active driver, 1x 10” down-firing passive radiator |
| Weight | 35.9 lbs (16.3 kg) |
- Reviews, Comparisons and Sound Samples
Product Line History
How these product lines changed from one generation to the next.
- REL T Series generations (3): T-7 → T/7i → T/7x
- REL S and Reference Series generations (2): R-528 → S/850