Short answer: both are discontinued, and they are rated the same for sound quality (#30 and #31 of 212 subwoofers). Either one is only an option used, so choose on condition and price. If you want one new, the HSU Research ULS-15 MK2 ranks #4 at $999.
Buy the Power Sound Audio (PSA) XS15SE or the Starke Sound SW15, whichever you find used in better condition; both are discontinued. For a new speaker, start with the HSU Research ULS-15 MK2 instead.
Still deciding? The full Subwoofers rankings cover every ranked option.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Power Sound Audio (PSA) XS15SE | Starke Sound SW15 | |
|---|---|---|
| Price | $1,499 Discontinued | $1,075 Discontinued |
| Ranked | #30 of 212 in Medium Home Subwoofers (30-75 lbs) | #31 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 12.5 Hz | 91.9 dB | 86.0 dB |
| Output SPL at 15 Hz | 96.5 dB | 90.8 dB |
| Output SPL at 20 Hz | 100.6 dB | 98.0 dB |
| Output SPL at 25 Hz | 107.2 dB | 104.6 dB |
| Output SPL at 31.5 Hz | 110.6 dB | 110.0 dB |
| Output SPL at 40 Hz | 114.7 dB | 114.6 dB |
| Output SPL at 50 Hz | 117.9 dB | 118.4 dB |
| Output SPL at 63 Hz | 119.1 dB | 119.1 dB |
| Output SPL at 80 Hz | 119.4 dB | 117.2 dB |
| Output SPL at 100 Hz | 119.3 dB | 115.2 dB |
| Output SPL at 125 Hz | 118.6 dB | 113.8 dB |
| CEA-2010-A Average (40-80Hz) | 117.8 dB | 117.3 dB |
| Dimensions | 19.5”H x 17”W x 18”D (495.3 x 431.8 x 457.2 mm) | 17.3”H x 16.5”W x 18.9”D (439.4 x 419.1 x 480.1 mm) |
| Weight | 67 lbs (30.4 kg) | 54.9 lbs (24.9 kg) |
| Warranty | 5 | - |
| Country | United States | United States |
| Measurement Source | Data-bass | Audioholics |
| Frequency Response | 23-200Hz, ±3dB | 14-240Hz, ±3dB |
| Amplifier Power | 550W RMS / 1650W peak | 450W RMS / 900W peak |
| Drivers | 15” (381mm) driver | 15” (381mm) driver |
| Cabinet Color | - | black |
| Crossover Frequency | - | 50-200Hz adjustable |
| Phase Control | - | 0°-180° adjustable |
| Inputs | - | 1 XLR (balanced), 3 RCA (unbalanced) |
| Features | - | Sealed subwoofer, outputs: XLR |
| XLR Input | - | Yes |
| RCA Input | - | Yes |
| 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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