Short answer: the JTR Speakers Captivator 215PRO. Both are rated 4.5/5 for sound quality (#7 and #5 of 110 subwoofers), and the JTR Speakers Captivator 215PRO costs $3500 against $7995 for the Power Sound Audio (PSA) TRIAX, and with sound quality even, the cheaper one is the better buy.
Buy the JTR Speakers Captivator 215PRO. Both are rated the same for sound quality, and it costs $4495 less than the Power Sound Audio (PSA) TRIAX.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| JTR Speakers Captivator 215PRO | Power Sound Audio (PSA) TRIAX | |
|---|---|---|
| Price | $3,500 | $7995 |
| Ranked | #7 of 110 in Large Home Subwoofers (Over 75 lbs) | #5 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 15 Hz | 103.6 dB | - |
| Output SPL at 20 Hz | 106.6 dB | 119.8 dB |
| Output SPL at 25 Hz | 122.1 dB | 119.8 dB |
| Output SPL at 31.5 Hz | 126.8 dB | 119.8 dB |
| Output SPL at 40 Hz | 129.3 dB | 130.9 dB |
| Output SPL at 50 Hz | 131.2 dB | 130.9 dB |
| Output SPL at 63 Hz | 131.3 dB | 130.9 dB |
| Output SPL at 80 Hz | 130.9 dB | - |
| Output SPL at 100 Hz | 130.7 dB | - |
| Output SPL at 125 Hz | 131.1 dB | - |
| CEA-2010-A Average (40-80Hz) | 130.7 dB | 130.9 dB (avg of 3/4 bands) |
| Dimensions | 40"H x 18"W x 30"D (1016.0 x 457.2 x 762.0 mm) | 23.5"H x 31"W x 27.5"D (596.9 x 787.4 x 698.5 mm) |
| Weight | 149 lbs (67.6 kg) | 229.9 lbs (104.3 kg) |
| Warranty | 5 | 5 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Manufacturer |
| Drivers | 2x 15" (381mm) drivers | 3x 15" (381mm) driver |
| Inputs | XLR, RCA | XLR (balanced, with loop output) |
| XLR Input | Yes | Yes |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
Related Speaker Comparisons
How Power Sound Audio (PSA) TRIAX compares with other leading options:
- JTR Speakers Orbit Shifter PRO vs Power Sound Audio (PSA) TRIAX
- JTR Speakers Orbit Shifter LFU vs Power Sound Audio (PSA) TRIAX
- JTR Speakers Captivator 4000ULF vs Power Sound Audio (PSA) TRIAX
- JTR Speakers Captivator S2 vs Power Sound Audio (PSA) TRIAX
- Monoprice Monolith 16 THX Ultra vs Power Sound Audio (PSA) TRIAX
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
JTR Speakers Captivator 215PRO: $3,500 eBay
Pros: Independent CEA-2010 testing records 106.6 dB at 20 Hz and 130.7 dB through 40-80 Hz. The ported, front enclosure with 2x 15” (381mm) drivers delivers formidable 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 1016.0H x 457.2W x 762.0D mm cabinet and 67.6 kg mass still require deliberate placement and calibration.
Notes: Looks like “PA sub”
Full JTR Speakers Captivator 215PRO review and specifications →
| AES Input | No |
|---|---|
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 130.7 dB |
| Cabinet Color | black |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 40"H x 18"W x 30"D (1016.0 x 457.2 x 762.0 mm) |
| Drivers | 2x 15" (381mm) drivers |
| Enclosure | ported, front |
| HDMI Input | No |
| Inputs | XLR, RCA |
| Measurement Source | Audioholics |
| Optical Input | No |
| Output SPL at 15 Hz | 103.6 dB |
| Output SPL at 20 Hz | 106.6 dB |
| Output SPL at 25 Hz | 122.1 dB |
| Output SPL at 31.5 Hz | 126.8 dB |
| Output SPL at 40 Hz | 129.3 dB |
| Output SPL at 50 Hz | 131.2 dB |
| Output SPL at 63 Hz | 131.3 dB |
| Output SPL at 80 Hz | 130.9 dB |
| Output SPL at 100 Hz | 130.7 dB |
| Output SPL at 125 Hz | 131.1 dB |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Warranty | 5 |
| Weight | 149 lbs (67.6 kg) |
| XLR Input | Yes |
- 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
- JTR Speakers Captivator 215PRO vs JTR Speakers Captivator 4000ULF
- JTR Speakers Captivator 215PRO vs Power Sound Audio (PSA) T18
- JTR Speakers Captivator 215PRO vs JTR Speakers Captivator S2
- JTR Speakers Captivator 215PRO vs Monoprice Monolith 16 THX Ultra
- JTR Speakers Captivator 215PRO vs HSU Research VTF-3 MK5 HP
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 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 Reaction Audio PV-15X
- Power Sound Audio (PSA) TRIAX vs Monoprice Monolith M-215
- Power Sound Audio (PSA) TRIAX vs Rythmik FV15HP
- See all 14 comparisons