Short answer: the Magico Audio ASUB. It ranks #104 of 109 subwoofers by sound quality, rated 3.6/5, at $9,000. The BK Electronics Extreme ranks #106, rated 3.4/5, at $5,995, $3,005 cheaper, which does not close the gap in sound quality.
What the Magico Audio ASUB does well: Independent CEA-2010 testing records 94.3 dB at 20 Hz and 111.1 dB through 40-80 Hz. The tradeoff: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority.
Why pick the BK Electronics Extreme: Massive 15-inch with 1000W RMS delivers startling speed like fast car with powerful engine.
Buy the Magico Audio ASUB. It is rated higher for sound quality, and saving $3,005 with the BK Electronics Extreme does not make up for the sound-quality gap.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Magico Audio ASUB | BK Electronics Extreme | |
|---|---|---|
| Price | $9,000 | $5995 |
| Ranked | #104 of 109 in Large Home Subwoofers (Over 75 lbs) | #106 of 109 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | - |
| Output SPL at 20 Hz | 94.3 dB | 100.7 dB |
| Output SPL at 25 Hz | 99.8 dB | 106.6 dB |
| Output SPL at 31.5 Hz | 105.8 dB | 110.7 dB |
| Output SPL at 40 Hz | 110.8 dB | 111.4 dB |
| Output SPL at 50 Hz | 112.7 dB | 111.1 dB |
| Output SPL at 63 Hz | 111.9 dB | 110.5 dB |
| Output SPL at 80 Hz | 109.1 dB | 109.0 dB |
| CEA-2010-A Average (40-80Hz) | 111.1 dB | 110.5 dB |
| Dimensions | 18”H x 14.5”W x 17.6”D (457.2 x 368.3 x 447.0 mm) | - |
| Weight | 108 lbs (49.0 kg) | 200.6 lbs (91 kg) |
| Cabinet Color | black | - |
| Country | United States | United Kingdom |
| Measurement Source | Brian Kahn | Ilkka Rissanen |
| Drivers | 10” (254mm) driver | 15” (381mm) driver |
| Inputs | XLR (with through-output), RCA | - |
| XLR Input | Yes | - |
| RCA Input | Yes | - |
| TRS Input | No | - |
| Optical Input | No | - |
| Coaxial Input | No | - |
| USB Input | No | - |
| HDMI Input | No | - |
| AES Input | No | - |
| Aux Input | No | - |
| Output SPL at 15 Hz | - | 92.8 dB |
| Amplifier Power | - | 1000W RMS |
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Prices on this page were last checked September 29, 2026 at 3:43 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
Magico Audio ASUB: $9,000 Suncoast Audio eBay
Pros: Independent CEA-2010 testing records 94.3 dB at 20 Hz and 111.1 dB through 40-80 Hz. The sealed enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music.
Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 457.2H x 368.3W x 447.0D mm cabinet and 49.0 kg mass still require deliberate placement and calibration.
Full Magico Audio ASUB review and specifications →
| AES Input | No |
|---|---|
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 111.1 dB |
| Cabinet Color | black |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 18”H x 14.5”W x 17.6”D (457.2 x 368.3 x 447.0 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | sealed |
| HDMI Input | No |
| Inputs | XLR (with through-output), RCA |
| Measurement Source | Brian Kahn |
| Optical Input | No |
| Output SPL at 20 Hz | 94.3 dB |
| Output SPL at 25 Hz | 99.8 dB |
| Output SPL at 31.5 Hz | 105.8 dB |
| Output SPL at 40 Hz | 110.8 dB |
| Output SPL at 50 Hz | 112.7 dB |
| Output SPL at 63 Hz | 111.9 dB |
| Output SPL at 80 Hz | 109.1 dB |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 108 lbs (49.0 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brian Kahn; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
BK Electronics Extreme: $5995 eBay
Pros: Massive 15-inch with 1000W RMS delivers startling speed like fast car with powerful engine. Continuous 0-180 degree phase control for flexible system integration. Beautiful compact design aids placement in listening room.
Full BK Electronics Extreme review and specifications →
| Amplifier Power | 1000W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 110.5 dB |
| Country | United Kingdom |
| Drivers | 15” (381mm) driver |
| Measurement Source | Ilkka Rissanen |
| Output SPL at 15 Hz | 92.8 dB |
| Output SPL at 20 Hz | 100.7 dB |
| Output SPL at 25 Hz | 106.6 dB |
| Output SPL at 31.5 Hz | 110.7 dB |
| Output SPL at 40 Hz | 111.4 dB |
| Output SPL at 50 Hz | 111.1 dB |
| Output SPL at 63 Hz | 110.5 dB |
| Output SPL at 80 Hz | 109.0 dB |
| Weight | 200.6 lbs (91 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Ilkka Rissanen; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons