Short answer: the HSU Research VTF-15H MK2. It ranks #50 of 110 subwoofers by sound quality, rated 4.2/5, at $1,499; the REL Acoustics HT/1510 Predator II ranks #82, rated 4.1/5, and costs $2,526.62, which makes this an easy call rather than a real tradeoff.
Why pick 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. Watch for: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1499 price point.
What the REL Acoustics HT/1510 Predator II does well: Independent CEA-2010 testing records 98.0 dB at 20 Hz and 118.1 dB through 40-80 Hz. The catch: 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.
Buy the HSU Research VTF-15H MK2. It is rated higher for sound quality than the REL Acoustics HT/1510 Predator II and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| HSU Research VTF-15H MK2 | REL Acoustics HT/1510 Predator II | |
|---|---|---|
| Price | $1,499 | $2,526.62 |
| Ranked | #50 of 110 in Large Home Subwoofers (Over 75 lbs) | #82 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 15 Hz | 101.6 dB | 91.4 dB |
| Output SPL at 20 Hz | 108.4 dB | 98.0 dB |
| Output SPL at 25 Hz | 114.8 dB | 104.4 dB |
| Output SPL at 31.5 Hz | 119.4 dB | 111.1 dB |
| Output SPL at 40 Hz | 122.9 dB | 116.9 dB |
| Output SPL at 50 Hz | 122.5 dB | 118.5 dB |
| Output SPL at 63 Hz | 121.1 dB | 118.5 dB |
| Output SPL at 80 Hz | 120.5 dB | 118.4 dB |
| CEA-2010-A Average (40-80Hz) | 121.8 dB | 118.1 dB |
| Dimensions | 24”H x 18”W x 26”D (609.6 x 457.2 x 660.4 mm) | 18”H x 21.3”W x 19.4”D (457.2 x 541.0 x 492.8 mm) |
| Weight | 110 lbs (49.9 kg) | 99.6 lbs (45.2 kg) |
| Warranty | 7/2(+3) | 3 |
| Cabinet Color | black, wood | black |
| Country | United States | United Kingdom |
| Measurement Source | Manufacturer | Audioholics |
| Drivers | 15” (381mm) driver | 15” (381mm) driver |
| Output SPL at 100 Hz | - | 118.5 dB |
| Output SPL at 125 Hz | - | 118.0 dB |
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Prices on this page were last checked September 26, 2026 at 11:14 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
Older model: the HSU Research VTF-15H (rated 4.1/5).
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
- HSU Research VTF-15H MK2 vs SVS PB-3000
- HSU Research VTF-15H MK2 vs HSU Research VTF-3 MK5 HP
- HSU Research VTF-15H MK2 vs Rythmik FV15HP
- HSU Research VTF-15H MK2 vs Monoprice Monolith 13 THX Ultra
- 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 Arendal 1723 Subwoofer 2S
- HSU Research VTF-15H MK2 vs Chase Home Theater SS18.1
- See all 29 comparisons
REL Acoustics HT/1510 Predator II: $2,526.62 eBay
Pros: Independent CEA-2010 testing records 98.0 dB at 20 Hz and 118.1 dB through 40-80 Hz. The sealed enclosure with 15” (381mm) driver delivers substantial 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 457.2H x 541.0W x 492.8D mm cabinet and 45.2 kg mass still require deliberate placement and calibration.
Full REL Acoustics HT/1510 Predator II review and specifications →
| CEA-2010-A Average (40-80Hz) | 118.1 dB |
|---|---|
| Cabinet Color | black |
| Country | United Kingdom |
| Dimensions | 18”H x 21.3”W x 19.4”D (457.2 x 541.0 x 492.8 mm) |
| Drivers | 15” (381mm) driver |
| Enclosure | sealed |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 91.4 dB |
| Output SPL at 20 Hz | 98.0 dB |
| Output SPL at 25 Hz | 104.4 dB |
| Output SPL at 31.5 Hz | 111.1 dB |
| Output SPL at 40 Hz | 116.9 dB |
| Output SPL at 50 Hz | 118.5 dB |
| Output SPL at 63 Hz | 118.5 dB |
| Output SPL at 80 Hz | 118.4 dB |
| Output SPL at 100 Hz | 118.5 dB |
| Output SPL at 125 Hz | 118.0 dB |
| Warranty | 3 |
| Weight | 99.6 lbs (45.2 kg) |
- 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
- REL Acoustics HT/1510 Predator II vs Outlaw Audio Ultra-X13
- REL Acoustics HT/1510 Predator II vs SVS PB12-Plus
- REL Acoustics HT/1510 Predator II vs SVS PB17-Ultra R-Evolution
- REL Acoustics HT/1510 Predator II vs HSU Research VTF-3 MK5 HP
- REL Acoustics HT/1510 Predator II vs Monoprice Monolith 16 THX Ultra
- REL Acoustics HT/1510 Predator II vs JTR Speakers Captivator S2