Short answer: the Power Sound Audio (PSA) T18. It ranks #6 of 97 subwoofers at $4995; the Power Sound Audio (PSA) V3600I ranks #8 and costs $6995, so there is not much of a tradeoff to weigh.
Buy the Power Sound Audio (PSA) T18 if the ranking matters more than the price. Buy the Power Sound Audio (PSA) V3600I if the price matters more than the ranking.
Specifications Side By Side
| Power Sound Audio (PSA) T18 | Power Sound Audio (PSA) V3600I | |
|---|---|---|
| Price | $4995 | $6995 |
| Ranked | #6 of 97 in Large Powered Home Subwoofers (Over 75 lbs) | #8 of 97 in Large Powered 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 31.0"W x 27.5"D (596.9 x 787.4 x 698.5 mm) | 44.0"H x 20.0"W x 25.0"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 |
The Two Speakers In Full
Power Sound Audio (PSA) T18: $4995
| CEA-2010-A Average (40-80Hz) | 129.7 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 23.5"H x 31.0"W x 27.5"D (596.9 x 787.4 x 698.5 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | sealed |
| Measurement Source | Manufacturer |
| Output SPL at 20 Hz | 115.7 dB |
| Output SPL at 25 Hz | 115.7 dB |
| Output SPL at 31.5 Hz | 115.7 dB |
| Output SPL at 40 Hz | 129.7 dB |
| Output SPL at 50 Hz | 129.7 dB |
| Output SPL at 63 Hz | 129.7 dB |
| Warranty | 5 |
| Weight | 170 lbs / 77.1 kg |
- Head-to-Head Comparisons
- Links
Power Sound Audio (PSA) V3600I: $6995
| CEA-2010-A Average (40-80Hz) | 128.3 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 44.0"H x 20.0"W x 25.0"D (1117.6 x 508.0 x 635.0 mm) |
| Drivers | 2x 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Manufacturer |
| Output SPL at 20 Hz | 119.4 dB |
| Output SPL at 25 Hz | 119.4 dB |
| Output SPL at 31.5 Hz | 119.4 dB |
| Output SPL at 40 Hz | 128.3 dB |
| Output SPL at 50 Hz | 128.3 dB |
| Output SPL at 63 Hz | 128.3 dB |
| Warranty | 5 |
| Weight | 196 lbs / 88.9 kg |
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.