Short answer: the Monoprice SW-15. It ranks #14 of 212 subwoofers by sound quality, rated 4.1/5, at $499.99; the JBL L10cs Classic ranks #125, rated 3.6/5, and costs $769, which makes this an easy call rather than a real tradeoff.
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 catch: Budget-tier design, ported room gain dependency, 66.1 lbs (30 kg) mid-size, and limited dynamic headroom.
The case for the JBL L10cs Classic: A 10 inch down-firing subwoofer in real wood veneer finishes, with a simple design that suits music systems. The tradeoff: Output drops steeply below 31.5Hz, reaching 97.0dB at 25Hz and 78.9dB at 20Hz, so it adds little deep movie rumble.
Buy the Monoprice SW-15. It is rated higher for sound quality than the JBL L10cs Classic and costs less, so only choose the other one for a particular feature it does better.
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 down-firing subwoofer in real wood veneer finishes, with a simple design that suits music systems.
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Specifications Side By Side
| Monoprice SW-15 | JBL L10cs Classic | |
|---|---|---|
| Price | $499.99 | $769.00 |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #125 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | ported, rear |
| Output SPL at 15 Hz | 90.0 dB | - |
| Output SPL at 20 Hz | 101.2 dB | 78.9 dB |
| Output SPL at 25 Hz | 106.3 dB | 97.0 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 102.9 dB |
| Output SPL at 40 Hz | 116.0 dB | 109.6 dB |
| Output SPL at 50 Hz | 120.2 dB | 112.2 dB |
| Output SPL at 63 Hz | 120.5 dB | 114.0 dB |
| Output SPL at 80 Hz | 119.5 dB | 111.8 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 111.9 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 15.4”H x 13.3”W x 15.6”D (391.2 x 337.8 x 396.2 mm) |
| Weight | 66.1 lbs (30.0 kg) | 31.1 lbs (14.1 kg) |
| Warranty | 1 | - |
| Cabinet Color | black | black, wood |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 30-150Hz (-10dB) | 32-150Hz |
| Amplifier Power | 600W RMS / 800W peak | 250W 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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