Short answer: the Power Sound Audio (PSA) TRIAX for the higher ranking, the HSU Research VTF-15H MK2 for the lower price. The Power Sound Audio (PSA) TRIAX ranks #3 of 97 subwoofers at $7995. The HSU Research VTF-15H MK2 ranks #41 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 size, and $1,500 price point.
Buy the HSU Research VTF-15H MK2 if the price matters more than the ranking. Buy the Power Sound Audio (PSA) TRIAX if the ranking matters more than the price.
Specifications Side By Side
| HSU Research VTF-15H MK2 | Power Sound Audio (PSA) TRIAX | |
|---|---|---|
| Price | $1,499 | $7995 |
| Ranked | #41 of 97 in Large Powered Home Subwoofers (Over 75 lbs) | #3 of 97 in Large Powered 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 | 24.0"H x 18.0"W x 26.0"D (609.6 x 457.2 x 660.4 mm) | 23.5"H x 31.0"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 |
The Two Speakers In Full
HSU Research VTF-15H MK2: $1,499
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 $1,500 price point.
Notes: Price includes shipping
| CEA-2010-A Average (40-80Hz) | 121.8 dB |
|---|---|
| Cabinet Color | black, wood |
| Country | United States |
| Dimensions | 24.0"H x 18.0"W x 26.0"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 |
- Head-to-Head Comparisons
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- Links
Power Sound Audio (PSA) TRIAX: $7995
| CEA-2010-A Average (40-80Hz) | 130.9 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 23.5"H x 31.0"W x 27.5"D (596.9 x 787.4 x 698.5 mm) |
| Drivers | 3x 15" (381mm) driver |
| Enclosure | sealed |
| Measurement Source | Manufacturer |
| 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 |
| Warranty | 5 |
| Weight | 229.9 lbs / 104.3 kg |
- Head-to-Head Comparisons
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- Power Sound Audio (PSA) TRIAX vs JTR Speakers Orbit Shifter LFU
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- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.