Short answer: the Power Sound Audio (PSA) TRIAX on measured sound quality, the HSU Research VTF-15H MK2 on price. The Power Sound Audio (PSA) TRIAX ranks #5 of 110 subwoofers, rated 4.5/5, at $7995. The HSU Research VTF-15H MK2 ranks #50, rated 4.2/5, at $1499, $6496 cheaper.
The case for the HSU Research VTF-15H MK2: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series. Set against that: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg (110.2 lbs) size, and $1,500 price point.
Buy the HSU Research VTF-15H MK2 if the price matters more than sound quality. Buy the Power Sound Audio (PSA) TRIAX if sound quality matters more than the price.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| HSU Research VTF-15H MK2 | Power Sound Audio (PSA) TRIAX | |
|---|---|---|
| Price | $1,499 | $7995 |
| Ranked | #50 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 | 101.6 dB | - |
| Output SPL at 20 Hz | 108.4 dB | 119.8 dB |
| Output SPL at 25 Hz | 114.8 dB | 119.8 dB |
| Output SPL at 31.5 Hz | 119.4 dB | 119.8 dB |
| Output SPL at 40 Hz | 122.9 dB | 130.9 dB |
| Output SPL at 50 Hz | 122.5 dB | 130.9 dB |
| Output SPL at 63 Hz | 121.1 dB | 130.9 dB |
| Output SPL at 80 Hz | 120.5 dB | - |
| CEA-2010-A Average (40-80Hz) | 121.8 dB | 130.9 dB (avg of 3/4 bands) |
| Dimensions | 24"H x 18"W x 26"D (609.6 x 457.2 x 660.4 mm) | 23.5"H x 31"W x 27.5"D (596.9 x 787.4 x 698.5 mm) |
| Weight | 110 lbs (49.9 kg) | 229.9 lbs (104.3 kg) |
| Warranty | 7/2(+3) | 5 |
| Cabinet Color | black, wood | - |
| Country | United States | United States |
| Measurement Source | Manufacturer | Manufacturer |
| Drivers | 15" (381mm) driver | 3x 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 |
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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
HSU Research VTF-15H MK2: $1,499 eBay
Pros: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series.
Cons: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1499 price point.
Notes: Price includes shipping
Full HSU Research VTF-15H MK2 review and specifications →
| CEA-2010-A Average (40-80Hz) | 121.8 dB |
|---|---|
| Cabinet Color | black, wood |
| Country | United States |
| Dimensions | 24"H x 18"W x 26"D (609.6 x 457.2 x 660.4 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, front |
| Measurement Source | Manufacturer |
| Output SPL at 15 Hz | 101.6 dB |
| Output SPL at 20 Hz | 108.4 dB |
| Output SPL at 25 Hz | 114.8 dB |
| Output SPL at 31.5 Hz | 119.4 dB |
| Output SPL at 40 Hz | 122.9 dB |
| Output SPL at 50 Hz | 122.5 dB |
| Output SPL at 63 Hz | 121.1 dB |
| Output SPL at 80 Hz | 120.5 dB |
| Warranty | 7/2(+3) |
| Weight | 110 lbs (49.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
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- HSU Research VTF-15H MK2 vs Rythmik FV15HP
- HSU Research VTF-15H MK2 vs SVS PB-4000
- HSU Research VTF-15H MK2 vs Monoprice Monolith M-15 V2
- HSU Research VTF-15H MK2 vs Chase Home Theater SS18.1
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- HSU Research VTF-15H MK2 vs Monoprice Monolith M15-S
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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 Reaction Audio PV-15X
- Power Sound Audio (PSA) TRIAX vs Monoprice Monolith M-215
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