Short answer: the Monoprice SW-15 for a ported design at less money, the PSA XS15 for a sealed cabinet. Both are 15-inch subs that reach the Bassaholic Large Room category, the Monoprice through a 600W RMS (800W peak) ported cabinet and the PSA through a 550W RMS sealed one. The Monoprice’s catch is budget-tier build, ported room-gain dependency, a 30 kg (66.1 lbs) cabinet and limited dynamic headroom.
Buy the Monoprice SW-15 new; the Power Sound Audio (PSA) XS15 is no longer sold new, so it only makes sense as a used find.
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Specifications Side By Side
| Monoprice SW-15 | Power Sound Audio (PSA) XS15 | |
|---|---|---|
| Price | $499.99 | $1,299 Discontinued |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #16 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | sealed |
| Output SPL at 15 Hz | 90.0 dB | - |
| Output SPL at 20 Hz | 101.2 dB | 107.1 dB |
| Output SPL at 25 Hz | 106.3 dB | 107.1 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 107.1 dB |
| Output SPL at 40 Hz | 116.0 dB | 118.2 dB |
| Output SPL at 50 Hz | 120.2 dB | 118.2 dB |
| Output SPL at 63 Hz | 120.5 dB | 118.2 dB |
| Output SPL at 80 Hz | 119.5 dB | - |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 118.2 dB (avg of 3/4 bands) |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 19.5”H x 17”W x 18”D (495.3 x 431.8 x 457.2 mm) |
| Weight | 66.1 lbs (30.0 kg) | 59.1 lbs (26.8 kg) |
| Warranty | 1 | 5 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Audioholics | Manufacturer |
| Frequency Response | 30-150Hz (-10dB) | 23-200Hz, ±3dB |
| Amplifier Power | 600W RMS / 800W peak | 550W RMS / 1650W peak |
| Crossover Frequency | 40-150Hz, 18dB/octave | - |
| Phase Control | 0° or 180° | - |
| Inputs | Stereo line level and speaker level | - |
| Drivers | 15” (381mm) driver | 15” (381mm) driver |
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