Short answer: the Kef KC62 for power and output, the Monoprice SSW-10 for an ultra-slim cabinet. The SSW-10 is a 10-inch ultra-slim sealed sub just 7-inch tall with 150W RMS and 108.2dB average output, and it costs $1504 less. The KC62 brings dual 6.5-inch force-canceling drivers and 1000W in an ultra-compact basketball-sized sealed enclosure.
The case for the Kef KC62: Dual 6.5-inch force-canceling drivers with 1000W in ultra-compact basketball-sized sealed enclosure.
What the Monoprice SSW-10 gets right: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average.
Buy the Monoprice SSW-10. It is rated higher for sound quality than the Kef KC62 and costs less, so there is no real case for the other one.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Kef KC62 | Monoprice SSW-10 | |
|---|---|---|
| Price | $1,699.99 | $195.99 |
| Ranked | #145 of 145 in Medium Home Subwoofers (30-75 lbs) | #72 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 20 Hz | 80.0 dB | 76.8 dB |
| Output SPL at 25 Hz | 84.6 dB | 85.2 dB |
| Output SPL at 31.5 Hz | 88.5 dB | 96.8 dB |
| Output SPL at 40 Hz | 92.2 dB | 105.7 dB |
| Output SPL at 50 Hz | 95.1 dB | 110.7 dB |
| Output SPL at 63 Hz | 97.7 dB | 118.4 dB |
| Output SPL at 80 Hz | 102.6 dB | 122.1 dB |
| Output SPL at 100 Hz | 104.2 dB | - |
| CEA-2010-A Average (40-80Hz) | 96.9 dB | 114.2 dB |
| Dimensions | 9.7"H x 10.1"W x 9.8"D (245.9 x 255.8 x 247.9 mm) | 7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm) |
| Weight | 30.9 lbs (14.0 kg) | 30 lbs (13.6 kg) |
| Warranty | 5/2/5 | 1 |
| Cabinet Color | black, white | black |
| Country | United Kingdom | United States |
| Measurement Source | ErinsAudioCorner | Brent Butterworth |
| Amplifier Power | 1000W RMS | 150W RMS |
| Frequency Response | 11-200Hz | 25Hz+ |
| Drivers | 2x 6.5" (165mm) driver | 10" (254mm) driver |
Related Speaker Comparisons
How Monoprice SSW-10 compares with other leading options:
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- MartinLogan Dynamo 1600X vs Monoprice SSW-10
- HSU Research ULS-15 MK2 vs Monoprice SSW-10
- Monoprice SSW-10 vs Monoprice SW-12
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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 SSW-10: $195.99 Amazon eBay
Pros: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average. Hidden under furniture or placement flexibility. Compact design at $196 price. Decent output for slim profile.
Notes: Product # 33830, low profile (<8in)
Full Monoprice SSW-10 review and specifications →
| Amplifier Power | 150W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 114.2 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | sealed |
| Frequency Response | 25Hz+ |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 76.8 dB |
| Output SPL at 25 Hz | 85.2 dB |
| Output SPL at 31.5 Hz | 96.8 dB |
| Output SPL at 40 Hz | 105.7 dB |
| Output SPL at 50 Hz | 110.7 dB |
| Output SPL at 63 Hz | 118.4 dB |
| Output SPL at 80 Hz | 122.1 dB |
| Warranty | 1 |
| Weight | 30 lbs (13.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
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