Short answer: the Power Sound Audio (PSA) TRIAX on measured sound quality, the Reaction Audio PV-15X on price. The Power Sound Audio (PSA) TRIAX ranks #5 of 110 subwoofers, rated 4.5/5, at $7995. The Reaction Audio PV-15X ranks #21, rated 4.4/5, at $1999, $5996 cheaper.
What the Reaction Audio PV-15X gets right: 15-inch ported driver delivers 126.2dB CEA-2010-A average from a purpose-built cinema-style cabinet. The catch: Passive design requires a separate external amplifier and weighs 68 kg (149.9 lbs).
Worth knowing: the Reaction Audio PV-15X is discontinued, though it still ranks #21 of 110 subwoofers by sound quality, so a used unit beats most of what is still sold new.
Buy the Power Sound Audio (PSA) TRIAX if sound quality is the priority over the price, or the Reaction Audio PV-15X if the price is the priority over sound quality.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Power Sound Audio (PSA) TRIAX | Reaction Audio PV-15X | |
|---|---|---|
| Price | $7995 | $1999 Discontinued |
| Ranked | #5 of 110 in Large Home Subwoofers (Over 75 lbs) | #21 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | ported, rear |
| Output SPL at 20 Hz | 119.8 dB | 111.3 dB |
| Output SPL at 25 Hz | 119.8 dB | 116.1 dB |
| Output SPL at 31.5 Hz | 119.8 dB | 119.8 dB |
| Output SPL at 40 Hz | 130.9 dB | 125.3 dB |
| Output SPL at 50 Hz | 130.9 dB | 126.8 dB |
| Output SPL at 63 Hz | 130.9 dB | 126.1 dB |
| CEA-2010-A Average (40-80Hz) | 130.9 dB (avg of 3/4 bands) | 126.2 dB |
| Dimensions | 23.5"H x 31"W x 27.5"D (596.9 x 787.4 x 698.5 mm) | 18"H x 22"W x 29"D (457.2 x 558.8 x 736.6 mm) |
| Weight | 229.9 lbs (104.3 kg) | 149.9 lbs (68 kg) |
| Warranty | 5 | - |
| Country | United States | - |
| Measurement Source | Manufacturer | Data-bass |
| Drivers | 3x 15" (381mm) driver | 15" (381mm) driver |
| Inputs | XLR (balanced, with loop output) | - |
| XLR Input | Yes | - |
| RCA Input | No | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | No | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Aux Input | No | - |
| Output SPL at 15 Hz | - | 105.3 dB |
| Output SPL at 80 Hz | - | 126.5 dB |
| Output SPL at 100 Hz | - | 126.4 dB |
| Output SPL at 125 Hz | - | 126.1 dB |
| Discontinued | - | Yes |
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Prices on this page were last checked September 23, 2026 at 11:24 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
Power Sound Audio (PSA) TRIAX: $7995 eBay
Pros: Published CEA-2010 specifications list 119.8 dB at 20 Hz and 130.9 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 3x 15” (381mm) driver has the headroom for demanding film bass in a large room.
Cons: The 596.9H x 787.4W x 698.5D mm cabinet and 104.3 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
Full Power Sound Audio (PSA) TRIAX review and specifications →
| AES Input | No |
|---|---|
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 130.9 dB (avg of 3/4 bands) |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 23.5"H x 31"W x 27.5"D (596.9 x 787.4 x 698.5 mm) |
| Drivers | 3x 15" (381mm) driver |
| Enclosure | sealed |
| HDMI Input | No |
| Inputs | XLR (balanced, with loop output) |
| Measurement Source | Manufacturer |
| Optical Input | No |
| Output SPL at 20 Hz | 119.8 dB |
| Output SPL at 25 Hz | 119.8 dB |
| Output SPL at 31.5 Hz | 119.8 dB |
| Output SPL at 40 Hz | 130.9 dB |
| Output SPL at 50 Hz | 130.9 dB |
| Output SPL at 63 Hz | 130.9 dB |
| RCA Input | No |
| TRS Input | No |
| USB Input | No |
| Warranty | 5 |
| Weight | 229.9 lbs (104.3 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
- Power Sound Audio (PSA) TRIAX vs JTR Speakers Captivator 4000ULF
- Power Sound Audio (PSA) TRIAX vs JTR Speakers Captivator 215PRO
- Power Sound Audio (PSA) TRIAX vs JTR Speakers Orbit Shifter LFU
- Power Sound Audio (PSA) TRIAX vs JTR Speakers Orbit Shifter PRO
- Power Sound Audio (PSA) TRIAX vs JTR Speakers Captivator S2
- Power Sound Audio (PSA) TRIAX vs Monoprice Monolith 16 THX Ultra
- Power Sound Audio (PSA) TRIAX vs Monoprice Monolith M-215
- Power Sound Audio (PSA) TRIAX vs Rythmik FV15HP
- See all 14 comparisons
Reaction Audio PV-15X: $1999 Discontinued eBay
Pros: 15-inch ported driver delivers 126.2dB CEA-2010-A average from a purpose-built cinema-style cabinet.
Cons: Passive design requires a separate external amplifier and weighs 68 kg. Discontinued.
Full Reaction Audio PV-15X review and specifications →
| CEA-2010-A Average (40-80Hz) | 126.2 dB |
|---|---|
| Dimensions | 18"H x 22"W x 29"D (457.2 x 558.8 x 736.6 mm) |
| Discontinued | Yes |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, rear |
| Measurement Source | Data-bass |
| Output SPL at 15 Hz | 105.3 dB |
| Output SPL at 20 Hz | 111.3 dB |
| Output SPL at 25 Hz | 116.1 dB |
| Output SPL at 31.5 Hz | 119.8 dB |
| Output SPL at 40 Hz | 125.3 dB |
| Output SPL at 50 Hz | 126.8 dB |
| Output SPL at 63 Hz | 126.1 dB |
| Output SPL at 80 Hz | 126.5 dB |
| Output SPL at 100 Hz | 126.4 dB |
| Output SPL at 125 Hz | 126.1 dB |
| Weight | 149.9 lbs (68 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Data-bass; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Reaction Audio PV-15X vs JTR Speakers Captivator 2400
- Reaction Audio PV-15X vs Funk Audio Ultra 21.0LX
- Reaction Audio PV-15X vs Monoprice Monolith M-215
- Reaction Audio PV-15X vs Monoprice Monolith 16 THX Ultra
- Reaction Audio PV-15X vs JBL 4645C
- Reaction Audio PV-15X vs Danley Sound Labs DTS10
- Reaction Audio PV-15X vs JTR Speakers Growler (2015)
- Reaction Audio PV-15X vs Chase Home Theater SS18.1
- See all 23 comparisons