Short answer: the Monoprice SW-15. It ranks #14 of 212 subwoofers by sound quality, rated 4.1/5, at $499.99. The BIC America PL-300 ranks #89, rated 3.7/5, at $449, $50.99 cheaper, which does not close the gap in sound quality.
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 tradeoff: Budget-tier design, ported room gain dependency, 66.1 lbs (30 kg) mid-size, and limited dynamic headroom.
The case for the BIC America PL-300: An affordable ported 12 inch subwoofer with three ports, adjustable tuning and a strong amplifier. Watch for: At 48.1 lbs (21.8 kg) and 457 x 387 x 476mm it is a large, heavy cabinet that needs floor space.
Buy the Monoprice SW-15. It is rated higher for sound quality, and saving $50.99 with the BIC America PL-300 does not make up for the sound-quality gap.
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.
An affordable ported 12 inch subwoofer with three ports, adjustable tuning and a strong amplifier.
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 | BIC America PL-300 | |
|---|---|---|
| Price | $499.99 | $449.00 |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #89 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 | 96.6 dB |
| Output SPL at 25 Hz | 106.3 dB | 102.8 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 109.2 dB |
| Output SPL at 40 Hz | 116.0 dB | 114.0 dB |
| Output SPL at 50 Hz | 120.2 dB | 116.3 dB |
| Output SPL at 63 Hz | 120.5 dB | 113.5 dB |
| Output SPL at 80 Hz | 119.5 dB | 110.9 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 113.7 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 18”H x 15.2”W x 18.7”D (457.2 x 387.3 x 476.2 mm) |
| Weight | 66.1 lbs (30.0 kg) | 48.1 lbs (21.8 kg) |
| Warranty | 1 | 8/5 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 30-150Hz (-10dB) | 15-200Hz |
| 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 | 12” (305mm) driver |
| Output SPL at 100 Hz | - | 108.8 dB |
| Output SPL at 125 Hz | - | 106.8 dB |
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