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 Genelec HTS3B ranks #178 (rated 3.3/5) 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. The catch: Budget-tier design, ported room gain dependency, 66.1 lbs (30 kg) mid-size, and limited dynamic headroom.
What the Genelec HTS3B does well: A compact professional 10 inch subwoofer with dual passive radiators and balanced inputs, now discontinued. Watch for: Output averages about 108dB from 40 to 80Hz, which is limited for large rooms or loud playback.
Buy the Monoprice SW-15. It is rated higher for sound quality and still sold new, while the Genelec HTS3B is discontinued.
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 professional 10 inch subwoofer with dual passive radiators and balanced inputs, now discontinued.
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Specifications Side By Side
| Monoprice SW-15 | Genelec HTS3B | |
|---|---|---|
| Price | $499.99 | $1,995 Discontinued |
| Ranked | #14 of 212 in Medium Home Subwoofers (30-75 lbs) | #178 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | passive radiator |
| Output SPL at 15 Hz | 90.0 dB | 89.1 dB |
| Output SPL at 20 Hz | 101.2 dB | 95.2 dB |
| Output SPL at 25 Hz | 106.3 dB | 98.2 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 101.4 dB |
| Output SPL at 40 Hz | 116.0 dB | 105.2 dB |
| Output SPL at 50 Hz | 120.2 dB | 107.9 dB |
| Output SPL at 63 Hz | 120.5 dB | 109.3 dB |
| Output SPL at 80 Hz | 119.5 dB | 110.3 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 108.2 dB |
| Dimensions | 18.1”H x 21”W x 22.7”D (459.7 x 533.4 x 576.6 mm) | 17.1”H x 15.6”W x 15.7”D (433.3 x 396.7 x 400.0 mm) |
| Weight | 66.1 lbs (30.0 kg) | 61.7 lbs (28.0 kg) |
| Warranty | 1 | 2(+3) |
| Cabinet Color | black | - |
| Country | United States | Finland |
| Measurement Source | Audioholics | Ilkka Rissanen |
| Frequency Response | 30-150Hz (-10dB) | 18-120Hz |
| Amplifier Power | 600W RMS / 800W peak | 200W RMS |
| Crossover Frequency | 40-150Hz, 18dB/octave | - |
| Phase Control | 0° or 180° | - |
| Inputs | Stereo line level and speaker level | XLR (in plus link-out), RCA (line-level) |
| Drivers | 15” (381mm) driver | 10” (254mm) driver |
| XLR Input | - | Yes |
| RCA Input | - | Yes |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | No |
| HDMI Input | - | No |
| AES Input | - | No |
| Aux Input | - | No |
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