Short answer: the Monoprice SW-15 if sound quality matters most, the Klipsch R-12SW if price matters most. The Monoprice SW-15 ranks #13 of 145 subwoofers at $374.99. The Klipsch R-12SW ranks #120 at $299, $75.99 cheaper.
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 Klipsch R-12SW offers: 12-inch copper-spun IMG driver provides low frequency with minimal breakup/distortion. 400W digital amplifier (200W RMS) with 29-120Hz frequency response. Unique copper diaphragm ensures durability while producing deep bass without distortion. Clean detailed bass at this price range stands out. Elegant cube design (14x18.5x16 inches, 30 lbs) with straightforward setup and easy connectivity via RCA inputs. Watch for: No detailed measurement caveats are currently recorded.
Buy the Monoprice SW-15 if sound quality matters more than the price. Buy the Klipsch R-12SW if the price matters more than sound quality.
Skip the Klipsch R-12SW if sound quality matters to you. It ranks near the bottom of the 145 subwoofers.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Monoprice SW-15 | Klipsch R-12SW | |
|---|---|---|
| Price | $374.99 | $299 |
| Ranked | #13 of 145 in Medium Home Subwoofers (30-75 lbs) | #120 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, bottom | ported, rear |
| Output SPL at 15 Hz | 90.0 dB | 68.5 dB |
| Output SPL at 20 Hz | 101.2 dB | 86.9 dB |
| Output SPL at 25 Hz | 106.3 dB | 97.1 dB |
| Output SPL at 31.5 Hz | 111.2 dB | 100.0 dB |
| Output SPL at 40 Hz | 116.0 dB | 104.7 dB |
| Output SPL at 50 Hz | 120.2 dB | 109.0 dB |
| Output SPL at 63 Hz | 120.5 dB | 111.2 dB |
| Output SPL at 80 Hz | 119.5 dB | 109.3 dB |
| CEA-2010-A Average (40-80Hz) | 119.0 dB | 108.5 dB |
| Dimensions | 18.1"H x 21"W x 22.7"D (459.7 x 533.4 x 576.6 mm) | 16"H x 14"W x 18.5"D (406.4 x 355.6 x 469.9 mm) |
| Weight | 66.1 lbs (30.0 kg) | 33.1 lbs (15.0 kg) |
| Warranty | 1 | 5/2 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | ErinsAudioCorner |
| Frequency Response | 30-150Hz (-10dB) | 29-120Hz |
| 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 | 12" (305mm) driver |
| Output SPL at 100 Hz | - | 107.6 dB |
| Output SPL at 125 Hz | - | 105.8 dB |
Related Speaker Comparisons
How Monoprice SW-15 compares with other leading options:
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- MartinLogan Dynamo 1600X vs Monoprice SW-15
- HSU Research ULS-15 MK2 vs Monoprice SW-15
- 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
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- 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
Klipsch R-12SW: $299 eBay
Pros: 12-inch copper-spun IMG driver provides low frequency with minimal breakup/distortion. 400W digital amplifier (200W RMS) with 29-120Hz frequency response. Unique copper diaphragm ensures durability while producing deep bass without distortion. Clean detailed bass at this price range stands out. Elegant cube design (14x18.5x16 inches, 30 lbs) with straightforward setup and easy connectivity via RCA inputs.
Full Klipsch R-12SW review and specifications →
| Amplifier Power | 200W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 108.5 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 16"H x 14"W x 18.5"D (406.4 x 355.6 x 469.9 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, rear |
| Frequency Response | 29-120Hz |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 15 Hz | 68.5 dB |
| Output SPL at 20 Hz | 86.9 dB |
| Output SPL at 25 Hz | 97.1 dB |
| Output SPL at 31.5 Hz | 100.0 dB |
| Output SPL at 40 Hz | 104.7 dB |
| Output SPL at 50 Hz | 109.0 dB |
| Output SPL at 63 Hz | 111.2 dB |
| Output SPL at 80 Hz | 109.3 dB |
| Output SPL at 100 Hz | 107.6 dB |
| Output SPL at 125 Hz | 105.8 dB |
| Warranty | 5/2 |
| Weight | 33.1 lbs (15.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by ErinsAudioCorner; the published figures above come from this ASR subwoofer measurement thread.