Short answer: the HSU Research ULS-15 MK2. It ranks #3 of 137 subwoofers at $1035; the SVS SB-3000 ranks #9 and costs $1199, so there is not much of a tradeoff to weigh.
On the HSU Research ULS-15 MK2 side: Sealed design delivers tight, accurate bass with low bloat.
The case for the SVS SB-3000: 13-inch sealed with 800W RMS (2500W peak) delivers 118.7dB average with exceptional accuracy. The tradeoff: Ported cabinet room-mode dependency, compact 25 kg size limits bass extension, and $1,100 investment.
Buy the HSU Research ULS-15 MK2 if the ranking matters more than the price. Buy the SVS SB-3000 if the price matters more than the ranking.
Specifications Side By Side
| HSU Research ULS-15 MK2 | SVS SB-3000 | |
|---|---|---|
| Price | $1,035 | $1,199.00 |
| Ranked | #3 of 137 in Medium Powered Home Subwoofers (30-75 lbs) | #9 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 12.5 Hz | 93.7 dB | - |
| Output SPL at 15 Hz | 98.0 dB | 90.3 dB |
| Output SPL at 20 Hz | 102.4 dB | 96.6 dB |
| Output SPL at 25 Hz | 107.7 dB | 101.7 dB |
| Output SPL at 31.5 Hz | 113.4 dB | 107.8 dB |
| Output SPL at 40 Hz | 118.3 dB | 114.6 dB |
| Output SPL at 50 Hz | 120.8 dB | 118.7 dB |
| Output SPL at 63 Hz | 121.2 dB | 120.7 dB |
| Output SPL at 80 Hz | 121.1 dB | 120.9 dB |
| Output SPL at 100 Hz | 120.7 dB | 120.8 dB |
| Output SPL at 125 Hz | 120.7 dB | 120.7 dB |
| CEA-2010-A Average (40-80Hz) | 120.3 dB | 118.7 dB |
| Dimensions | 19.0"H x 18.0"W x 19.5"D (482.6 x 457.2 x 495.3 mm) | 15.6"H x 15.2"W x 15.7"D (396.2 x 386.1 x 398.8 mm) |
| Weight | 65 lbs / 29.5 kg | 54.5 lbs / 24.7 kg |
| Warranty | 7/2(+3) | 5 |
| Cabinet Color | black, wood | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 20-200Hz, ±1dB | 18-270Hz, ±3dB |
| Power Output (Watts) | 600W RMS / 2000W peak | 800W RMS / 2500W peak |
| Crossover | 30-90Hz adjustable | 30-200Hz adjustable, 6/12/18/24dB slopes |
| Phase Control | 0°-180° | 0°-180° |
| Features | Q control, sealed subwoofer, EQ1/EQ2 modes | Auto/On, 3-12V AC/DC trigger |
| Drivers | 15" (381mm) driver | 13" (330mm) driver |
| Input Connections | - | RCA (unbalanced), USB |
The Two Speakers In Full
HSU Research ULS-15 MK2: $1,035
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 at under $850 shipped.
Notes: Price includes shipping
| CEA-2010-A Average (40-80Hz) | 120.3 dB |
|---|---|
| Cabinet Color | black, wood |
| Country | United States |
| Crossover | 30-90Hz adjustable |
| Dimensions | 19.0"H x 18.0"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° |
| Power Output (Watts) | 600W RMS / 2000W peak |
| Warranty | 7/2(+3) |
| Weight | 65 lbs / 29.5 kg |
- Head-to-Head Comparisons
- HSU Research ULS-15 MK2 vs MartinLogan Dynamo 1600X
- HSU Research ULS-15 MK2 vs Power Sound Audio (PSA) XV15
- HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO
- 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 PB-1000 PRO
- HSU Research ULS-15 MK2 vs Monoprice SW-12
- HSU Research ULS-15 MK2 vs Rythmik F12
- See all 14 comparisons
- Links
SVS SB-3000: $1,199.00 Amazon
Pros: 13-inch sealed with 800W RMS (2500W peak) delivers 118.7dB average with exceptional accuracy. Beautifully made with pinpoint control and flawless tonal accuracy. Sweet spot performance-to-value ratio. Three-band parametric EQ with 1Hz precision adjustment.
Cons: Ported cabinet room-mode dependency, compact 25 kg size limits bass extension, and $1,100 investment.
| CEA-2010-A Average (40-80Hz) | 118.7 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Crossover | 30-200Hz adjustable, 6/12/18/24dB slopes |
| Dimensions | 15.6"H x 15.2"W x 15.7"D (396.2 x 386.1 x 398.8 mm) |
| Drivers | 13" (330mm) driver |
| Enclosure | sealed |
| Features | Auto/On, 3-12V AC/DC trigger |
| Frequency Response | 18-270Hz, ±3dB |
| Input Connections | RCA (unbalanced), USB |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.3 dB |
| Output SPL at 20 Hz | 96.6 dB |
| Output SPL at 25 Hz | 101.7 dB |
| Output SPL at 31.5 Hz | 107.8 dB |
| Output SPL at 40 Hz | 114.6 dB |
| Output SPL at 50 Hz | 118.7 dB |
| Output SPL at 63 Hz | 120.7 dB |
| Output SPL at 80 Hz | 120.9 dB |
| Output SPL at 100 Hz | 120.8 dB |
| Output SPL at 125 Hz | 120.7 dB |
| Phase Control | 0°-180° |
| Power Output (Watts) | 800W RMS / 2500W peak |
| Warranty | 5 |
| Weight | 54.5 lbs / 24.7 kg |
- Head-to-Head Comparisons
- SVS SB-3000 vs Monoprice SW-15
- SVS SB-3000 vs Power Sound Audio (PSA) XS15
- SVS SB-3000 vs Power Sound Audio (PSA) XV15SEICE-BASE
- SVS SB-3000 vs Power Sound Audio (PSA) XS15-BASE
- SVS SB-3000 vs MartinLogan Dynamo 1600X
- SVS SB-3000 vs JTR Speakers Captivator 212PRO
- SVS SB-3000 vs SVS PB-1000 PRO
- SVS SB-3000 vs Monoprice SW-12
- See all 16 comparisons
- 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.