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 Dayton Audio SUB-1500 ranks #130 (rated 3.6/5) and is discontinued, so it is only an option used.
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. Watch for: Budget-tier design, ported room gain dependency, 66.1 lbs (30 kg) mid-size, and limited dynamic headroom.
The case for the Dayton Audio SUB-1500: A huge 15 inch ported subwoofer at a budget price, meant to fill a large room, now discontinued. The tradeoff: Output falls off in the deepest octave, dropping to 96.5dB at 25Hz and 90.2dB at 20Hz, so the lowest movie effects will be faint.
Buy the Monoprice SW-15. It is rated higher for sound quality, and the Dayton Audio SUB-1500 is discontinued, so it is only available used.
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 huge 15 inch ported subwoofer at a budget price, meant to fill a large room, now discontinued.
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Specifications Side By Side
| Monoprice SW-15 | Dayton Audio SUB-1500 | |
|---|---|---|
| Price | $499.99 | $260 Discontinued |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #130 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | ported, bottom |
| Output SPL at 15 Hz | 90.0 dB | - |
| Output SPL at 20 Hz | 101.2 dB | 90.2 dB |
| Output SPL at 25 Hz | 106.3 dB | 96.5 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 101.7 dB |
| Output SPL at 40 Hz | 116.0 dB | 106.5 dB |
| Output SPL at 50 Hz | 120.2 dB | 111.6 dB |
| Output SPL at 63 Hz | 120.5 dB | 114.0 dB |
| Output SPL at 80 Hz | 119.5 dB | 112.9 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 111.2 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 19.7”H x 19.2”W x 19.7”D (501.6 x 488.9 x 501.6 mm) |
| Weight | 66.1 lbs (30.0 kg) | 60 lbs (27.2 kg) |
| Warranty | 1 | - |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Frequency Response | 30-150Hz (-10dB) | 23-140Hz |
| Amplifier Power | 600W RMS / 800W peak | 150W RMS |
| Crossover Frequency | 40-150Hz, 18dB/octave | - |
| Phase Control | 0° or 180° | - |
| Inputs | Stereo line level and speaker level | - |
| Drivers | 15” (381mm) driver | 15” (381mm) driver |
| Output SPL at 100 Hz | - | 111.8 dB |
| Output SPL at 125 Hz | - | 110.1 dB |
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