Short answer: the Monoprice SW-15. It ranks #14 of 212 subwoofers by sound quality, rated 4.1/5, at $499.99; the Aperion Audio Bravus II 12D ranks #85, rated 3.7/5, and costs $1,199, so there is little reason to consider the other one.
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.
What the Aperion Audio Bravus II 12D does well: A compact 12 inch subwoofer with dual passive radiators, a high gloss finish and a long driver warranty. The catch: Output falls off steeply in the deepest octave, with 103.2dB at 25Hz and only 90.0dB at 20Hz, so it is not for the lowest movie effects.
Buy the Monoprice SW-15. It is rated higher for sound quality than the Aperion Audio Bravus II 12D and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Subwoofers rankings cover every ranked option.
A big 15 inch subwoofer with powerful, punchy bass at a budget price, great for movies in a large room.
A compact 12 inch subwoofer with dual passive radiators, a high gloss finish and a long driver warranty.
Prices on this page were last checked October 29, 2026 at 4:42 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 | Aperion Audio Bravus II 12D | |
|---|---|---|
| Price | $499.99 | $1,199 |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #85 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | passive radiator |
| Output SPL at 15 Hz | 90.0 dB | - |
| Output SPL at 20 Hz | 101.2 dB | 90.0 dB |
| Output SPL at 25 Hz | 106.3 dB | 103.2 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 108.3 dB |
| Output SPL at 40 Hz | 116.0 dB | 112.8 dB |
| Output SPL at 50 Hz | 120.2 dB | 115.6 dB |
| Output SPL at 63 Hz | 120.5 dB | 115.2 dB |
| Output SPL at 80 Hz | 119.5 dB | 113.7 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 114.3 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 17”H x 15.5”W x 15.5”D (431.8 x 393.7 x 393.7 mm) |
| Weight | 66.1 lbs (30.0 kg) | 61.9 lbs (28.1 kg) |
| Warranty | 1 | 10/2 |
| Cabinet Color | black | black, wood |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 30-150Hz (-10dB) | 22-350Hz |
| Amplifier Power | 600W RMS / 800W peak | 650W RMS |
| Crossover Frequency | 40-150Hz, 18dB/octave | - |
| Phase Control | 0° or 180° | - |
| Inputs | Stereo line level and speaker level | - |
| Drivers | 15” (381mm) driver | 12” (305mm) driver |
| Output SPL at 100 Hz | - | 112.8 dB |
| Output SPL at 125 Hz | - | 112.3 dB |
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