Short answer: the HSU Research ULS-15 MK2. It ranks #3 of 145 subwoofers at $999 against the Power Sound Audio XV15’s #9 at $1995, and its sealed cabinet delivers tight, accurate bass with low bloat. The PSA XV15 is a 15-inch ported downfirer with 500W that digs deep into the lowest frequencies, so it is the one to consider if output and extension matter more than pitch definition.
What the HSU Research ULS-15 MK2 gets right: Sealed design delivers tight, accurate bass with low bloat.
On the Power Sound Audio (PSA) XV15 side: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies.
Buy the HSU Research ULS-15 MK2. It is rated higher for sound quality than the Power Sound Audio (PSA) XV15 and costs less, so there is no real case for the other one.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| HSU Research ULS-15 MK2 | Power Sound Audio (PSA) XV15 | |
|---|---|---|
| Price | $1,035 | $1995 |
| Ranked | #3 of 145 in Medium Home Subwoofers (30-75 lbs) | #9 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 12.5 Hz | 93.7 dB | - |
| Output SPL at 15 Hz | 98.0 dB | - |
| Output SPL at 20 Hz | 102.4 dB | 110.2 dB |
| Output SPL at 25 Hz | 107.7 dB | 110.2 dB |
| Output SPL at 31.5 Hz | 113.4 dB | 110.2 dB |
| Output SPL at 40 Hz | 118.3 dB | 119.5 dB |
| Output SPL at 50 Hz | 120.8 dB | 119.5 dB |
| Output SPL at 63 Hz | 121.2 dB | 119.5 dB |
| Output SPL at 80 Hz | 121.1 dB | - |
| Output SPL at 100 Hz | 120.7 dB | - |
| Output SPL at 125 Hz | 120.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 120.3 dB | 119.5 dB (avg of 3/4 bands) |
| Dimensions | 19"H x 18"W x 19.5"D (482.6 x 457.2 x 495.3 mm) | 23"H x 17"W x 22"D (584.2 x 431.8 x 558.8 mm) |
| Weight | 65 lbs (29.5 kg) | 75 lbs (34.0 kg) |
| Warranty | 7/2(+3) | 5 |
| Cabinet Color | black, wood | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 20-200Hz, ±1dB | 21-200Hz |
| Amplifier Power | 600W RMS / 2000W peak | 500W RMS / 1000W peak |
| Crossover Frequency | 30-90Hz adjustable | - |
| Phase Control | 0°-180° | - |
| Features | Q control, sealed subwoofer, EQ1/EQ2 modes | - |
| Drivers | 15" (381mm) driver | 15" (381mm) driver |
| Inputs | - | Stereo line level and speaker level |
Related Speaker Comparisons
More worthwhile head-to-heads for HSU Research ULS-15 MK2:
- HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO
- HSU Research ULS-15 MK2 vs MartinLogan Dynamo 1600X
- HSU Research ULS-15 MK2 vs Monoprice SW-12
- HSU Research ULS-15 MK2 vs Paradigm Defiance X12
- HSU Research ULS-15 MK2 vs Monoprice SW-15
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 ULS-15 MK2: $1,035 HSU Research eBay
Pros: Sealed design delivers tight, accurate bass with low bloat. 600W BASH amplifier. 30% less expensive and 20 lbs lighter than predecessor. Easy integration with Q and EQ controls. Great value in the 15” sub market.
Notes: Price includes shipping
Full HSU Research ULS-15 MK2 review and specifications →
| Amplifier Power | 600W RMS / 2000W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 120.3 dB |
| Cabinet Color | black, wood |
| Country | United States |
| Crossover Frequency | 30-90Hz adjustable |
| Dimensions | 19"H x 18"W x 19.5"D (482.6 x 457.2 x 495.3 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | sealed |
| Features | Q control, sealed subwoofer, EQ1/EQ2 modes |
| Frequency Response | 20-200Hz, ±1dB |
| Measurement Source | Audioholics |
| Output SPL at 12.5 Hz | 93.7 dB |
| Output SPL at 15 Hz | 98.0 dB |
| Output SPL at 20 Hz | 102.4 dB |
| Output SPL at 25 Hz | 107.7 dB |
| Output SPL at 31.5 Hz | 113.4 dB |
| Output SPL at 40 Hz | 118.3 dB |
| Output SPL at 50 Hz | 120.8 dB |
| Output SPL at 63 Hz | 121.2 dB |
| Output SPL at 80 Hz | 121.1 dB |
| Output SPL at 100 Hz | 120.7 dB |
| Output SPL at 125 Hz | 120.7 dB |
| Phase Control | 0°-180° |
| Warranty | 7/2(+3) |
| Weight | 65 lbs (29.5 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
- HSU Research ULS-15 MK2 vs MartinLogan Dynamo 1600X
- HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO
- HSU Research ULS-15 MK2 vs Monoprice SW-12
- HSU Research ULS-15 MK2 vs Paradigm Defiance X12
- HSU Research ULS-15 MK2 vs Monoprice SW-15
- HSU Research ULS-15 MK2 vs SVS SB-3000
- HSU Research ULS-15 MK2 vs Klipsch SPL-120
- HSU Research ULS-15 MK2 vs Rythmik F12
- See all 19 comparisons
Power Sound Audio (PSA) XV15: $1995 eBay
Pros: 15-inch ported downfirer with 500W delivers crisp detailed bass digging deep into lowest frequencies. 119.5dB output plays loud clean at 115dB peaks with no distortion. USA-built with durable finish.
Full Power Sound Audio (PSA) XV15 review and specifications →
| Amplifier Power | 500W RMS / 1000W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.5 dB (avg of 3/4 bands) |
| Country | United States |
| Dimensions | 23"H x 17"W x 22"D (584.2 x 431.8 x 558.8 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 21-200Hz |
| Inputs | Stereo line level and speaker level |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 110.2 dB |
| Output SPL at 25 Hz | 110.2 dB |
| Output SPL at 31.5 Hz | 110.2 dB |
| Output SPL at 40 Hz | 119.5 dB |
| Output SPL at 50 Hz | 119.5 dB |
| Output SPL at 63 Hz | 119.5 dB |
| Warranty | 5 |
| Weight | 75 lbs (34.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Power Sound Audio (PSA) XV15 vs Paradigm Defiance X12
- Power Sound Audio (PSA) XV15 vs Power Sound Audio (PSA) XV15-BASE
- Power Sound Audio (PSA) XV15 vs Monoprice SW-15
- Power Sound Audio (PSA) XV15 vs Monoprice SW-12
- Power Sound Audio (PSA) XV15 vs SVS SB-3000
- Power Sound Audio (PSA) XV15 vs MartinLogan Dynamo 1600X
- Power Sound Audio (PSA) XV15 vs JTR Speakers Captivator 212PRO
- Power Sound Audio (PSA) XV15 vs Rythmik F12
- See all 17 comparisons