Short answer: the Perlisten Audio D215s. It ranks #44 of 143 subwoofers by sound quality (rated 4.2/5) at $9,000 and is still sold new; the BK Electronics Extreme ranks #140 (rated 3.4/5) and is discontinued, so it is only an option used.
The Perlisten Audio D215s is the better-sounding option. A sealed dual 15 inch subwoofer with powerful deep bass for big home theaters and both balanced and RCA inputs. Watch for: The 805.2H x 500.4W x 650.2D mm cabinet and 202.4 lbs (91.8 kg) mass make this a serious placement and moving commitment.
The case for the BK Electronics Extreme: A big 15 inch subwoofer with a powerful amplifier and continuous phase control for flexible setup, now discontinued. Watch for: It weighs 200.6 lbs (91 kg), which takes two or more people to move and needs a strong floor.
Buy the Perlisten Audio D215s. It is rated higher for sound quality; the BK Electronics Extreme is no longer sold new.
Still deciding? The full Subwoofers rankings cover every ranked option.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Perlisten Audio D215s | BK Electronics Extreme | |
|---|---|---|
| Price | $9,000 | $5,995 Discontinued |
| Ranked | #44 of 143 in Large Home Subwoofers (Over 75 lbs) | #140 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | - |
| Output SPL at 10 Hz | 93.0 dB | - |
| Output SPL at 12.5 Hz | 98.8 dB | - |
| Output SPL at 15 Hz | 104.3 dB | 92.8 dB |
| Output SPL at 20 Hz | 109.2 dB | 100.7 dB |
| Output SPL at 25 Hz | 113.3 dB | 106.6 dB |
| Output SPL at 31.5 Hz | 117.2 dB | 110.7 dB |
| Output SPL at 40 Hz | 120.8 dB | 111.4 dB |
| Output SPL at 50 Hz | 122.8 dB | 111.1 dB |
| Output SPL at 63 Hz | 124.0 dB | 110.5 dB |
| Output SPL at 80 Hz | 125.0 dB | 109.0 dB |
| Output SPL at 100 Hz | 125.6 dB | - |
| Output SPL at 125 Hz | 126.6 dB | - |
| CEA-2010-A Average (40-80Hz) | 123.2 dB | 110.5 dB |
| Dimensions | 31.7”H x 19.7”W x 25.6”D (805.2 x 500.4 x 650.2 mm) | - |
| Weight | 202.4 lbs (91.8 kg) | 200.6 lbs (91 kg) |
| Warranty | 5 | - |
| Cabinet Color | black, custom | - |
| Country | United States | United Kingdom |
| Measurement Source | Audioholics | Ilkka Rissanen |
| Drivers | 2x 15” (381mm) drivers | 15” (381mm) driver |
| Inputs | XLR (2, balanced), RCA (2, unbalanced) | - |
| 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 | - |
| Amplifier Power | - | 1000W RMS |
Where the Ratings Come From
- Perlisten Audio D215s: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
- BK Electronics Extreme: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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