Short answer: the Monoprice SW-12 for value, the Kef KC62 for build and compact size. The SW-12 is a 12-inch ported sub with 400W RMS (600W peak) that hits hard with clean, tight transient response for $166.73. Set against that are entry-level build quality, ported enclosure room interaction, and a lower 112.3 dB output capability than the KC62’s dual 6.5-inch force-canceling, 1000W sealed design.
On the Kef KC62 side: Dual 6.5-inch force-canceling drivers with 1000W in ultra-compact basketball-sized sealed enclosure.
The case for the Monoprice SW-12: 12-inch ported with 400W RMS (600W peak) on a budget at just $230. Hits hard with clean tight transient response. The catch: Entry-level build quality, ported enclosure room interaction, and lower 112.3 dB output capability.
Buy the Monoprice SW-12. 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-12 | |
|---|---|---|
| Price | $1,699.99 | $166.73 |
| Ranked | #145 of 145 in Medium Home Subwoofers (30-75 lbs) | #5 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, bottom |
| Output SPL at 20 Hz | 80.0 dB | 102.7 dB |
| Output SPL at 25 Hz | 84.6 dB | 111.1 dB |
| Output SPL at 31.5 Hz | 88.5 dB | 115.2 dB |
| Output SPL at 40 Hz | 92.2 dB | 119.0 dB |
| Output SPL at 50 Hz | 95.1 dB | 119.7 dB |
| Output SPL at 63 Hz | 97.7 dB | 122.9 dB |
| Output SPL at 80 Hz | 102.6 dB | 123.0 dB |
| Output SPL at 100 Hz | 104.2 dB | - |
| CEA-2010-A Average (40-80Hz) | 96.9 dB | 121.2 dB |
| Dimensions | 9.7"H x 10.1"W x 9.8"D (245.9 x 255.8 x 247.9 mm) | 14.9"H x 18.3"W x 19.1"D (378.5 x 464.8 x 485.1 mm) |
| Weight | 30.9 lbs (14.0 kg) | 50.7 lbs (23.0 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 | 400W RMS / 600W peak |
| Frequency Response | 11-200Hz | 35-150Hz, -10dB |
| Drivers | 2x 6.5" (165mm) driver | 12" (305mm) driver |
| Output SPL at 16 Hz | - | 90.6 dB |
Related Speaker Comparisons
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- JTR Speakers Captivator 212PRO vs Monoprice SW-12
- MartinLogan Dynamo 1600X vs Monoprice SW-12
- HSU Research ULS-15 MK2 vs Monoprice SW-12
- Monoprice SW-12 vs Power Sound Audio (PSA) XV15
- Monoprice SW-12 vs Monoprice SW-15
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-12: $166.73 Amazon eBay
Pros: 12-inch ported with 400W RMS (600W peak) on a budget at just $167. Hits hard with clean tight transient response. Variable crossover and volume controls for setup flexibility. Speaker-level and line-level inputs for easy integration.
Cons: Entry-level build quality, ported enclosure room interaction, and lower 112.3 dB output capability.
Notes: Product # 41498
Full Monoprice SW-12 review and specifications →
| Amplifier Power | 400W RMS / 600W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 121.2 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 14.9"H x 18.3"W x 19.1"D (378.5 x 464.8 x 485.1 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 35-150Hz, -10dB |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 90.6 dB |
| Output SPL at 20 Hz | 102.7 dB |
| Output SPL at 25 Hz | 111.1 dB |
| Output SPL at 31.5 Hz | 115.2 dB |
| Output SPL at 40 Hz | 119.0 dB |
| Output SPL at 50 Hz | 119.7 dB |
| Output SPL at 63 Hz | 122.9 dB |
| Output SPL at 80 Hz | 123.0 dB |
| Warranty | 1 |
| Weight | 50.7 lbs (23.0 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
- Monoprice SW-12 vs HSU Research ULS-15 MK2
- Monoprice SW-12 vs MartinLogan Dynamo 1600X
- Monoprice SW-12 vs JTR Speakers Captivator 212PRO
- Monoprice SW-12 vs Power Sound Audio (PSA) XV15
- Monoprice SW-12 vs Monoprice SW-15
- Monoprice SW-12 vs SVS SB-3000
- Monoprice SW-12 vs Klipsch SPL-120
- Monoprice SW-12 vs Rythmik F12
- See all 19 comparisons