Short answer: both are discontinued, and they are rated the same for sound quality (#8 and #10 of 143 subwoofers). Either one is only an option used, so choose on condition and price. If you want one new, the JTR Speakers Orbit Shifter PRO ranks #1 at $4,499.
Buy the Power Sound Audio (PSA) T18 or the Power Sound Audio (PSA) V3600I, whichever you find used in better condition; both are discontinued. For a new speaker, start with the JTR Speakers Orbit Shifter PRO instead.
Want more options? Browse the full Subwoofers rankings.
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Specifications Side By Side
| Power Sound Audio (PSA) T18 | Power Sound Audio (PSA) V3600I | |
|---|---|---|
| Price | $4,995 Discontinued | $6,995 Discontinued |
| Ranked | #8 of 143 in Large Home Subwoofers (Over 75 lbs) | #10 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 20 Hz | 115.7 dB | 119.4 dB |
| Output SPL at 25 Hz | 115.7 dB | 119.4 dB |
| Output SPL at 31.5 Hz | 115.7 dB | 119.4 dB |
| Output SPL at 40 Hz | 129.7 dB | 128.3 dB |
| Output SPL at 50 Hz | 129.7 dB | 128.3 dB |
| Output SPL at 63 Hz | 129.7 dB | 128.3 dB |
| CEA-2010-A Average (40-80Hz) | 129.7 dB (avg of 3/4 bands) | 128.3 dB (avg of 3/4 bands) |
| Dimensions | 23.5”H x 31”W x 27.5”D (596.9 x 787.4 x 698.5 mm) | 44”H x 20”W x 25”D (1117.6 x 508.0 x 635.0 mm) |
| Weight | 170 lbs (77.1 kg) | 196 lbs (88.9 kg) |
| Warranty | 5 | 5 |
| Country | United States | United States |
| Measurement Source | Manufacturer | Manufacturer |
| Drivers | 18” (457mm) driver | 2x 18” (457mm) driver |
| Inputs | XLR (balanced, with loop 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 | - |
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