Short answer: the Monoprice SW-15 for large-room bass, the Kef KC62 for placement flexibility. The SW-15 is a 15-inch ported sub with 600W RMS (800W peak) that earns a Large-room Bassaholic rating, but it is budget-tier, depends on ported room gain, weighs 30 kg (66.1 lbs) and has limited dynamic headroom. The KC62 stays ultra-compact with dual 6.5-inch force-canceling drivers and 1000W.
What the Kef KC62 gets right: Dual 6.5-inch force-canceling drivers with 1000W in ultra-compact basketball-sized sealed enclosure.
On the Monoprice SW-15 side: 15-inch ported with 600W RMS (800W peak) delivers Large-room Bassaholic rating. The catch: Budget-tier design, ported room gain dependency, 30 kg (66.1 lbs) mid-size, and limited dynamic headroom.
Buy the Monoprice SW-15. It is rated higher for sound quality than the Kef KC62 and costs less, which settles it without a real tradeoff to make.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Kef KC62 | Monoprice SW-15 | |
|---|---|---|
| Price | $1,699.99 | $374.99 |
| Ranked | #145 of 145 in Medium Home Subwoofers (30-75 lbs) | #13 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 20 Hz | 80.0 dB | 101.2 dB |
| Output SPL at 25 Hz | 84.6 dB | 106.3 dB |
| Output SPL at 31.5 Hz | 88.5 dB | 111.2 dB |
| Output SPL at 40 Hz | 92.2 dB | 116.0 dB |
| Output SPL at 50 Hz | 95.1 dB | 120.2 dB |
| Output SPL at 63 Hz | 97.7 dB | 120.5 dB |
| Output SPL at 80 Hz | 102.6 dB | 119.5 dB |
| Output SPL at 100 Hz | 104.2 dB | - |
| CEA-2010-A Average (40-80Hz) | 96.9 dB | 119.0 dB |
| Dimensions | 9.7"H x 10.1"W x 9.8"D (245.9 x 255.8 x 247.9 mm) | 18.1"H x 21"W x 22.7"D (459.7 x 533.4 x 576.6 mm) |
| Weight | 30.9 lbs (14.0 kg) | 66.1 lbs (30.0 kg) |
| Warranty | 5/2/5 | 1 |
| Cabinet Color | black, white | black |
| Country | United Kingdom | United States |
| Measurement Source | ErinsAudioCorner | Audioholics |
| Amplifier Power | 1000W RMS | 600W RMS / 800W peak |
| Frequency Response | 11-200Hz | 30-150Hz (-10dB) |
| Drivers | 2x 6.5" (165mm) driver | 15" (381mm) driver |
| Output SPL at 15 Hz | - | 90.0 dB |
| Crossover Frequency | - | 40-150Hz, 18dB/octave |
| Phase Control | - | 0° or 180° |
| Inputs | - | Stereo line level and speaker level |
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Prices on this page were last checked September 23, 2026 at 11:24 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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The Two Speakers In Full
Kef KC62: $1,699.99 Amazon eBay
Pros: Dual 6.5-inch force-canceling drivers with 1000W in ultra-compact basketball-sized sealed enclosure. Deep extension to 11Hz with five room placement EQ presets. Elegant design fits any décor.
Full Kef KC62 review and specifications →
| Amplifier Power | 1000W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 96.9 dB |
| Cabinet Color | black, white |
| Country | United Kingdom |
| Dimensions | 9.7"H x 10.1"W x 9.8"D (245.9 x 255.8 x 247.9 mm) |
| Drivers | 2x 6.5" (165mm) driver |
| Enclosure | sealed |
| Frequency Response | 11-200Hz |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 20 Hz | 80.0 dB |
| Output SPL at 25 Hz | 84.6 dB |
| Output SPL at 31.5 Hz | 88.5 dB |
| Output SPL at 40 Hz | 92.2 dB |
| Output SPL at 50 Hz | 95.1 dB |
| Output SPL at 63 Hz | 97.7 dB |
| Output SPL at 80 Hz | 102.6 dB |
| Output SPL at 100 Hz | 104.2 dB |
| Warranty | 5/2/5 |
| Weight | 30.9 lbs (14.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by ErinsAudioCorner; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
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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