Short answer: the Perlisten Audio D215s, if you are buying new. The RTJ Audio 18Sub measures as well as it (#43 vs #44 of 143 subwoofers, 4.2/5 vs 4.2/5) but is discontinued, so only consider it used; the Perlisten Audio D215s is still sold new at $9,000.
Why pick the Perlisten Audio D215s: A sealed dual 15 inch subwoofer with powerful deep bass for big home theaters and both balanced and RCA inputs. The catch: 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 RTJ Audio 18Sub: A sealed 18 inch subwoofer with strong deep bass and plenty of headroom for movies in a large room. Watch for: The 571.5H x 571.5W x 381.0D mm cabinet and 119.9 lbs (54.4 kg) mass make this a serious placement and moving commitment.
Buy the Perlisten Audio D215s if you want one new; the RTJ Audio 18Sub is discontinued, so only look for it used.
Still deciding? The full Subwoofers rankings cover every ranked option.
A sealed dual 15 inch subwoofer with powerful deep bass for big home theaters and both balanced and RCA inputs.
A sealed 18 inch subwoofer with strong deep bass and plenty of headroom for movies in a large room.
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Specifications Side By Side
| Perlisten Audio D215s | RTJ Audio 18Sub | |
|---|---|---|
| Price | $9,000 | $7,000 Discontinued |
| Ranked | #44 of 143 in Large Home Subwoofers (Over 75 lbs) | #43 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 10 Hz | 93.0 dB | 93.9 dB |
| Output SPL at 12.5 Hz | 98.8 dB | 97.7 dB |
| Output SPL at 15 Hz | 104.3 dB | 103.3 dB |
| Output SPL at 20 Hz | 109.2 dB | 109.1 dB |
| Output SPL at 25 Hz | 113.3 dB | 113.5 dB |
| Output SPL at 31.5 Hz | 117.2 dB | 117.8 dB |
| Output SPL at 40 Hz | 120.8 dB | 121.4 dB |
| Output SPL at 50 Hz | 122.8 dB | 123.5 dB |
| Output SPL at 63 Hz | 124.0 dB | 124.4 dB |
| Output SPL at 80 Hz | 125.0 dB | 124.2 dB |
| Output SPL at 100 Hz | 125.6 dB | 124.1 dB |
| Output SPL at 125 Hz | 126.6 dB | 124.7 dB |
| CEA-2010-A Average (40-80Hz) | 123.2 dB | 123.4 dB |
| Dimensions | 31.7”H x 19.7”W x 25.6”D (805.2 x 500.4 x 650.2 mm) | 22.5”H x 22.5”W x 15”D (571.5 x 571.5 x 381.0 mm) |
| Weight | 202.4 lbs (91.8 kg) | 119.9 lbs (54.4 kg) |
| Warranty | 5 | - |
| Cabinet Color | black, custom | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Drivers | 2x 15” (381mm) drivers | 18” (457mm) 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 | - |
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