Short answer: the Monoprice SW-15 for output per dollar. Its 15-inch ported cabinet and 600W RMS amplifier earn a Large-room Bassaholic rating and the #14 spot of 212 subwoofers at $499.99, though it is a budget design that leans on ported room gain and offers limited dynamic headroom. The RSL Speedwoofer 10S MKII pairs its 10-inch driver with a 400W RMS XDR amplifier and ranks #124.
Buy the Monoprice SW-15. It is rated higher for sound quality, and the $0.99 saving on the RSL (Rogersound Labs) Speedwoofer 10S MKII is not enough to make up the difference.
Looking for alternatives? See the complete Subwoofers rankings.
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Specifications Side By Side
| Monoprice SW-15 | RSL (Rogersound Labs) Speedwoofer 10S MKII | |
|---|---|---|
| Price | $499.99 | $499 |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #124 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | ported, rear |
| Output SPL at 15 Hz | 90.0 dB | 89.0 dB |
| Output SPL at 20 Hz | 101.2 dB | 100.0 dB |
| Output SPL at 25 Hz | 106.3 dB | 105.0 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 107.7 dB |
| Output SPL at 40 Hz | 116.0 dB | 110.3 dB |
| Output SPL at 50 Hz | 120.2 dB | 112.9 dB |
| Output SPL at 63 Hz | 120.5 dB | 113.0 dB |
| Output SPL at 80 Hz | 119.5 dB | 112.1 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 112.1 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 15.5”H x 15”W x 15.7”D (393.7 x 381.0 x 400.0 mm) |
| Weight | 66.1 lbs (30.0 kg) | 40.6 lbs (18.4 kg) |
| Warranty | 1 | 5/2 |
| Cabinet Color | black | black, white |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 30-150Hz (-10dB) | 21-200Hz |
| Amplifier Power | 600W RMS / 800W peak | 400W RMS |
| Crossover Frequency | 40-150Hz, 18dB/octave | - |
| Phase Control | 0° or 180° | - |
| Inputs | Stereo line level and speaker level | - |
| Drivers | 15” (381mm) driver | 10” (254mm) driver |
| Output SPL at 100 Hz | - | 111.4 dB |
| Output SPL at 125 Hz | - | 110.7 dB |
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