XTZ Sound SUB 3X12 Review: Rated 4.3/5

Last updated: October 21, 2026

The XTZ Sound SUB 3X12 is rated 4.3/5 for sound quality, #28 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.

XTZ Sound SUB 3X12 · Editor's rating 4.3/5, ranked #28 of 143 Large Home Subwoofers (Over 75 lbs)

Prices on this page were last checked October 29, 2026 at 4:42 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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Brand: XTZ

#28 XTZ Sound SUB 3X12: $1,412.84 eBay

Same family: the XTZ Sound SUB 1X12 (smaller subwoofer, rated 3.7/5).

Pros: A triple 12 inch subwoofer with huge, deep output for movies in a large room, for less than most rivals. 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.

ReleasedJul 2014 (12 years ago)
CEA-2010-A Average (40-80Hz)125.3 dB
Cabinet Colorblack
CountrySweden
Dimensions45.6”H x 21.1”W x 21.9”D (1158.2 x 535.9 x 556.3 mm)
Drivers3x 12” (305mm) drivers
Enclosureported, front
Measurement SourceAudioholics
Output SPL at 12.5 Hz100.0 dB
Output SPL at 15 Hz109.1 dB
Output SPL at 20 Hz114.5 dB
Output SPL at 25 Hz118.5 dB
Output SPL at 31.5 Hz121.8 dB
Output SPL at 40 Hz124.8 dB
Output SPL at 50 Hz125.4 dB
Output SPL at 63 Hz125.4 dB
Output SPL at 80 Hz125.6 dB
Output SPL at 100 Hz126.1 dB
Output SPL at 125 Hz126.4 dB
Warranty5/2
Weight170.6 lbs (77.4 kg)
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