Short answer: the Klipsch RP-1000SW. It ranks #142 of 212 subwoofers by sound quality, rated 3.6/5, at $674.99; the REL Acoustics T/5x ranks #151, rated 3.5/5, and costs $699, so there is little reason to consider the other one.
Why pick the Klipsch RP-1000SW: The entry 10-inch model in Klipsch’s flagship Reference Premiere high-excursion subwoofer family. The catch: The 10-inch driver naturally gives up bottom-octave (16-25Hz) maximum output compared to the 12-inch Klipsch RP-1200SW and 14-inch Klipsch Reference Premiere RP-1400SW in larger home theater rooms.
Why pick the REL Acoustics T/5x: Compact sealed enclosure with a down-firing 8-inch long-throw FibreAlloy driver powered by a 125W Class A/B amplifier. Watch for: 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.
Buy the Klipsch RP-1000SW. It is rated higher for sound quality than the REL Acoustics T/5x and costs less, which makes it the one to get unless you need something the other one does better.
About the ratings: the REL Acoustics T/5x’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 3.3 to 3.7, so this verdict could change once it is measured.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Klipsch RP-1000SW | REL Acoustics T/5x | |
|---|---|---|
| Price | $674.99 each | $699.00 |
| Ranked | #142 of 212 in Medium Home Subwoofers (30-75 lbs) | #151 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated |
| Warranty | 5 | 3 |
| Country | United States | United Kingdom |
| Amplifier Power | 300W RMS, 600W peak Class D | 125W RMS (Class A/B) |
| Bass Extension (-3dB) | 19Hz (measured, Audioholics) | - |
| Crossover Frequency | 40Hz - 160Hz variable | - |
| Dimensions | 16.7” x 15” x 21” (423 x 381 x 534 mm) | 11.8”H x 12.1”W x 12.3”D (300 x 307 x 313 mm) |
| Drivers | 10” front-firing Cerametallic high-excursion woofer | 8” (200mm) down-firing long-throw FibreAlloy cone |
| Enclosure | Ported, front Aerofoil slot port | sealed |
| Frequency Response | 19Hz - 131Hz (+/- 3dB, Manufacturer specified) | 32Hz at -6dB (manufacturer specified) |
| Inputs | Dual RCA line-in, WA-2 wireless port | - |
| Maximum SPL | 118.5dB (in-room) | - |
| Phase Control | 0° / 180° switch | - |
| RCA Input | Yes | - |
| Weight | 56.7 lbs (25.7 kg) | 31.5 lbs (14.3 kg) |
Related Speaker Comparisons
More top alternatives to Klipsch RP-1000SW:
- REL Acoustics HT/1003 MKII vs Klipsch RP-1000SW
- JBL L10cs Classic vs Klipsch RP-1000SW
- Klipsch RP-1000SW vs ELAC Varro PS250
- ELAC Varro PS250 vs REL Acoustics T/5x
- REL Acoustics T/5x vs Monoprice Monolith M-10 V2
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Speakers In Full
Klipsch RP-1000SW: $674.99 each Amazon eBay
Same family: the Klipsch RP-1200SW (larger subwoofer, ranked higher, rated 3.8/5), the Klipsch Reference Premiere RP-1400SW (larger subwoofer, estimated 4/5) and the Klipsch RP-1600SW (larger subwoofer, rated 4.2/5).
Pros: The entry 10-inch model in Klipsch’s flagship Reference Premiere high-excursion subwoofer family. Combines a newly developed 10-inch front-firing spun-copper Cerametallic driver with an analog preamp stage and 300W RMS / 600W peak Class D amplifier. Features Klipsch’s internal flare Aerofoil slot port that eliminates port chuffing and turbulence at high velocity. CEA-2010 output data confirms robust output across the 31.5Hz to 80Hz range with extension reaching 19Hz in-room, providing tight, articulate musical punch with excellent transient speed.
Cons: The 10-inch driver naturally gives up bottom-octave (16-25Hz) maximum output compared to the 12-inch Klipsch RP-1200SW and 14-inch Klipsch Reference Premiere RP-1400SW in larger home theater rooms. The cabinet depth (534 mm) is substantial for a 10-inch sub.
Full Klipsch RP-1000SW review and specifications →
| Released | 2023 (3 years ago) |
|---|---|
| Amplifier Power | 300W RMS, 600W peak Class D |
| Bass Extension (-3dB) | 19Hz (measured, Audioholics) |
| Country | United States |
| Crossover Frequency | 40Hz - 160Hz variable |
| Dimensions | 16.7” x 15” x 21” (423 x 381 x 534 mm) |
| Drivers | 10” front-firing Cerametallic high-excursion woofer |
| Enclosure | Ported, front Aerofoil slot port |
| Frequency Response | 19Hz - 131Hz (+/- 3dB, Manufacturer specified) |
| Inputs | Dual RCA line-in, WA-2 wireless port |
| Maximum SPL | 118.5dB (in-room) |
| Phase Control | 0° / 180° switch |
| RCA Input | Yes |
| Warranty | 5 |
| Weight | 56.7 lbs (25.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
REL Acoustics T/5x: $699.00 Estimated Amazon 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