Short answer: the Monoprice SW-15. It ranks #13 of 145 subwoofers by sound quality at $374.99; the Genelec HTS3B ranks #122 and costs $1995, which makes this an easy call rather than a real tradeoff.
What the Monoprice SW-15 offers: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup. Watch for: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.
What the Genelec HTS3B offers: Professional 10-inch with dual passive radiators and 200W amp. Genelec Laminar Spiral Enclosure (LSE) ensures color-free low end to 25Hz. Compact precision design with measured distortion better than -30dB below fundamental. Watch for: No detailed measurement caveats are currently recorded.
Buy the Monoprice SW-15. It ranks higher for sound quality than the Genelec HTS3B and costs less, so the other one has nothing left to offer.
If sound quality matters at all to you, skip the Genelec HTS3B. It ranks near the bottom of the 145 subwoofers, so look higher up the list instead.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Monoprice SW-15 | Genelec HTS3B | |
|---|---|---|
| Price | $374.99 | $1995 |
| Ranked | #13 of 145 in Medium Home Subwoofers (30-75 lbs) | #122 of 145 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 | - |
| Drivers | 15" (381mm) driver | 10" (254mm) driver |
Related Speaker Comparisons
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- Monoprice SW-15 vs PSB Speakers SubSeries 450
- Monoprice SW-12 vs Monoprice SW-15
Prices on this page were last checked September 16, 2026 at 12:41 AM 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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The Two Speakers In Full
Monoprice SW-15: $374.99 Amazon eBay
Pros: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. Unrivaled mid-bass punch for $375. Strong output with clean control. Dual speaker-level inputs and 40-150Hz crossover for flexible hookup.
Cons: Budget-tier design, ported room gain dependency, 30 kg mid-size, and limited dynamic headroom.
Notes: Product # 41499
Full Monoprice SW-15 review and specifications →
| Amplifier Power | 600W RMS / 800W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 119.0 dB |
| Cabinet Color | black |
| Country | United States |
| Crossover Frequency | 40-150Hz, 18dB/octave |
| Dimensions | 18.1"H x 21"W x 22.7"D (459.7 x 533.4 x 576.6 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 30-150Hz (-10dB) |
| Inputs | Stereo line level and speaker level |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.0 dB |
| Output SPL at 20 Hz | 101.2 dB |
| Output SPL at 25 Hz | 106.3 dB |
| Output SPL at 31.5 Hz | 111.2 dB |
| Output SPL at 40 Hz | 116.0 dB |
| Output SPL at 50 Hz | 120.2 dB |
| Output SPL at 63 Hz | 120.5 dB |
| Output SPL at 80 Hz | 119.5 dB |
| Phase Control | 0° or 180° |
| Warranty | 1 |
| Weight | 66.1 lbs (30.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Monoprice SW-15 vs Power Sound Audio (PSA) XV15SEICE-BASE
- Monoprice SW-15 vs SVS SB-3000
- Monoprice SW-15 vs Power Sound Audio (PSA) XS15
- Monoprice SW-15 vs Power Sound Audio (PSA) XV15-BASE
- Monoprice SW-15 vs Paradigm Defiance X12
- Monoprice SW-15 vs Power Sound Audio (PSA) XS15-BASE
- Monoprice SW-15 vs Power Sound Audio (PSA) XV15
- Monoprice SW-15 vs Klipsch SPL-120
- See all 109 comparisons
Genelec HTS3B: $1995 eBay
Pros: Professional 10-inch with dual passive radiators and 200W amp. Genelec Laminar Spiral Enclosure (LSE) ensures color-free low end to 25Hz. Compact precision design with measured distortion better than -30dB below fundamental.
Full Genelec HTS3B review and specifications →
| Amplifier Power | 200W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 108.2 dB |
| Country | Finland |
| Dimensions | 17.1"H x 15.6"W x 15.7"D (433.3 x 396.7 x 400.0 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | passive radiator |
| Frequency Response | 18-120Hz |
| Measurement Source | Ilkka Rissanen |
| Output SPL at 15 Hz | 89.1 dB |
| Output SPL at 20 Hz | 95.2 dB |
| Output SPL at 25 Hz | 98.2 dB |
| Output SPL at 31.5 Hz | 101.4 dB |
| Output SPL at 40 Hz | 105.2 dB |
| Output SPL at 50 Hz | 107.9 dB |
| Output SPL at 63 Hz | 109.3 dB |
| Output SPL at 80 Hz | 110.3 dB |
| Warranty | 2(+3) |
| Weight | 61.7 lbs (28.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Ilkka Rissanen; the published figures above come from this ASR subwoofer measurement thread.