Short answer: the Monoprice SW-15. It ranks #14 of 212 subwoofers by sound quality (rated 4.1/5) at $499.99 and is still sold new; the RSL (Rogersound Labs) Speedwoofer 10S ranks #166 (rated 3.4/5) and is discontinued, so it is only an option used. The RSL (Rogersound Labs) Speedwoofer 10S’s replacement, the RSL (Rogersound Labs) Speedwoofer 10S MKII, is rated 3.6/5 at $499.
The Monoprice SW-15 is the better-sounding choice. A big 15 inch subwoofer with powerful, punchy bass at a budget price, great for movies in a large room. The tradeoff: Budget-tier design, ported room gain dependency, 66.1 lbs (30 kg) mid-size, and limited dynamic headroom.
The case for the RSL (Rogersound Labs) Speedwoofer 10S: A 10 inch ported subwoofer with a well braced cabinet and a slot for a wireless receiver, now discontinued. The catch: Output falls to about 96dB at 20Hz, so deep movie effects are limited.
Buy the Monoprice SW-15. It is rated higher for sound quality; the RSL (Rogersound Labs) Speedwoofer 10S is no longer sold new.
Looking for alternatives? See the complete Subwoofers rankings.
A big 15 inch subwoofer with powerful, punchy bass at a budget price, great for movies in a large room.
A 10 inch ported subwoofer with a well braced cabinet and a slot for a wireless receiver, now discontinued.
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Specifications Side By Side
| Monoprice SW-15 | RSL (Rogersound Labs) Speedwoofer 10S | |
|---|---|---|
| Price | $499.99 | $349 Discontinued |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #166 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | ported, front |
| Output SPL at 15 Hz | 90.0 dB | - |
| Output SPL at 20 Hz | 101.2 dB | 95.5 dB |
| Output SPL at 25 Hz | 106.3 dB | 101.2 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 105.2 dB |
| Output SPL at 40 Hz | 116.0 dB | 107.0 dB |
| Output SPL at 50 Hz | 120.2 dB | 109.9 dB |
| Output SPL at 63 Hz | 120.5 dB | 111.1 dB |
| Output SPL at 80 Hz | 119.5 dB | 110.5 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 109.6 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 16”H x 15”W x 16.7”D (406.4 x 381.0 x 425.4 mm) |
| Weight | 66.1 lbs (30.0 kg) | 45 lbs (20.4 kg) |
| Warranty | 1 | 2 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 30-150Hz (-10dB) | 24-200Hz |
| Amplifier Power | 600W RMS / 800W peak | 350W 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 |
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