Short answer: the XTZ Sound SUB 3X12. It ranks #19 of 97 subwoofers by sound quality at $1412.84; the Power Sound Audio (PSA) XS30 ranks #20 and costs $3995, so there is little reason to consider the other one.
What the Power Sound Audio (PSA) XS30 offers: Published CEA-2010 specifications list 110.6 dB at 20 Hz and 125.2 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 2x 15” (381mm) driver has the headroom for demanding film bass in a large room. Watch for: The 571.5H x 609.6W x 457.2D mm cabinet and 48.5 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
What the XTZ Sound SUB 3X12 offers: Independent CEA-2010 testing records 114.5 dB at 20 Hz and 125.3 dB through 40-80 Hz. The ported, front enclosure with 3x 12” (305mm) drivers has the headroom for demanding film bass in a large room. Watch for: The 1158.2H x 535.9W x 556.3D mm cabinet and 77.4 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Buy the XTZ Sound SUB 3X12. It ranks higher for sound quality than the Power Sound Audio (PSA) XS30 and costs less, so the other one has nothing left to offer.
Specifications Side By Side
| Power Sound Audio (PSA) XS30 | XTZ Sound SUB 3X12 | |
|---|---|---|
| Price | $3995 | $1,412.84 |
| Ranked | #20 of 97 in Large Powered Home Subwoofers (Over 75 lbs) | #19 of 97 in Large Powered Home Subwoofers (Over 75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 20 Hz | 110.6 dB | 114.5 dB |
| Output SPL at 25 Hz | 110.6 dB | 118.5 dB |
| Output SPL at 31.5 Hz | 110.6 dB | 121.8 dB |
| Output SPL at 40 Hz | 125.2 dB | 124.8 dB |
| Output SPL at 50 Hz | 125.2 dB | 125.4 dB |
| Output SPL at 63 Hz | 125.2 dB | 125.4 dB |
| CEA-2010-A Average (40-80Hz) | 125.2 dB (avg of 3/4 bands) | 125.3 dB |
| Dimensions | 22.5"H x 24"W x 18"D (571.5 x 609.6 x 457.2 mm) | 45.6"H x 21.1"W x 21.9"D (1158.2 x 535.9 x 556.3 mm) |
| Weight | 106.9 lbs / 48.5 kg | 170.6 lbs / 77.4 kg |
| Warranty | 5 | 5/2 |
| Country | United States | Sweden |
| Measurement Source | Manufacturer | Audioholics |
| Drivers | 2x 15" (381mm) driver | 3x 12" (305mm) drivers |
| Output SPL at 12.5 Hz | - | 100.0 dB |
| Output SPL at 15 Hz | - | 109.1 dB |
| Output SPL at 80 Hz | - | 125.6 dB |
| Output SPL at 100 Hz | - | 126.1 dB |
| Output SPL at 125 Hz | - | 126.4 dB |
| Cabinet Color | - | black |
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Prices on this page were last checked September 8, 2026 at 6:02 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
Power Sound Audio (PSA) XS30: $3995 eBay
Pros: Published CEA-2010 specifications list 110.6 dB at 20 Hz and 125.2 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with 2x 15” (381mm) driver has the headroom for demanding film bass in a large room.
Cons: The 571.5H x 609.6W x 457.2D mm cabinet and 48.5 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
Full Power Sound Audio (PSA) XS30 review and specifications →
| CEA-2010-A Average (40-80Hz) | 125.2 dB (avg of 3/4 bands) |
|---|---|
| Country | United States |
| Dimensions | 22.5"H x 24"W x 18"D (571.5 x 609.6 x 457.2 mm) |
| Drivers | 2x 15" (381mm) driver |
| Enclosure | sealed |
| Measurement Source | Manufacturer |
| Output SPL at 20 Hz | 110.6 dB |
| Output SPL at 25 Hz | 110.6 dB |
| Output SPL at 31.5 Hz | 110.6 dB |
| Output SPL at 40 Hz | 125.2 dB |
| Output SPL at 50 Hz | 125.2 dB |
| Output SPL at 63 Hz | 125.2 dB |
| Warranty | 5 |
| Weight | 106.9 lbs / 48.5 kg |
- Links
- Reviews, Comparisons and Sound Samples
XTZ Sound SUB 3X12: $1,412.84 eBay
Pros: Independent CEA-2010 testing records 114.5 dB at 20 Hz and 125.3 dB through 40-80 Hz. The ported, front enclosure with 3x 12” (305mm) drivers has the headroom for demanding film bass in a large room.
Cons: The 1158.2H x 535.9W x 556.3D mm cabinet and 77.4 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Full XTZ Sound SUB 3X12 review and specifications →
| CEA-2010-A Average (40-80Hz) | 125.3 dB |
|---|---|
| Cabinet Color | black |
| Country | Sweden |
| Dimensions | 45.6"H x 21.1"W x 21.9"D (1158.2 x 535.9 x 556.3 mm) |
| Drivers | 3x 12" (305mm) drivers |
| Enclosure | ported, front |
| Measurement Source | Audioholics |
| Output SPL at 12.5 Hz | 100.0 dB |
| Output SPL at 15 Hz | 109.1 dB |
| Output SPL at 20 Hz | 114.5 dB |
| Output SPL at 25 Hz | 118.5 dB |
| Output SPL at 31.5 Hz | 121.8 dB |
| Output SPL at 40 Hz | 124.8 dB |
| Output SPL at 50 Hz | 125.4 dB |
| Output SPL at 63 Hz | 125.4 dB |
| Output SPL at 80 Hz | 125.6 dB |
| Output SPL at 100 Hz | 126.1 dB |
| Output SPL at 125 Hz | 126.4 dB |
| Warranty | 5/2 |
| Weight | 170.6 lbs / 77.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons