Short answer: the Monoprice SW-15. It ranks #14 of 212 subwoofers by sound quality (rated 4.1/5); the BK Electronics XLS200-DF MK2 ranks #192 (rated 3.2/5).
The Monoprice SW-15 is the better-sounding option. 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.
What the BK Electronics XLS200-DF MK2 does well: A compact sealed 10 inch subwoofer with a down-firing driver that is easy to place, plus solid build and a black ash finish. The catch: Output drops to about 89dB at 20Hz and 84dB at 15Hz, so it will not shake the room with the deepest movie effects.
Buy the Monoprice SW-15. It is rated higher for sound quality than the BK Electronics XLS200-DF MK2.
Want more options? Browse the full Subwoofers rankings.
A big 15 inch subwoofer with powerful, punchy bass at a budget price, great for movies in a large room.
A compact sealed 10 inch subwoofer with a down-firing driver that is easy to place, plus solid build and a black ash finish.
Prices on this page were last checked October 31, 2026 at 7:11 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
| Monoprice SW-15 | BK Electronics XLS200-DF MK2 | |
|---|---|---|
| Price | $499.99 | £412.95 |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #192 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | sealed |
| Output SPL at 15 Hz | 90.0 dB | 84.2 dB |
| Output SPL at 20 Hz | 101.2 dB | 89.3 dB |
| Output SPL at 25 Hz | 106.3 dB | 94.6 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 99.4 dB |
| Output SPL at 40 Hz | 116.0 dB | 103.1 dB |
| Output SPL at 50 Hz | 120.2 dB | 105.4 dB |
| Output SPL at 63 Hz | 120.5 dB | 106.9 dB |
| Output SPL at 80 Hz | 119.5 dB | 107.5 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 105.7 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 14”H x 11.4”W x 13.4”D (354.8 x 289.8 x 339.9 mm) |
| Weight | 66.1 lbs (30.0 kg) | 38.6 lbs (17.5 kg) |
| Warranty | 1 | 2 |
| Cabinet Color | black | black, white, wood, grey |
| Country | United States | United Kingdom |
| Measurement Source | Audioholics | Ilkka Rissanen |
| Frequency Response | 30-150Hz (-10dB) | 17Hz -6dB+ |
| Amplifier Power | 600W RMS / 800W peak | 275W 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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