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The QPower QBGMC1220144DR is a sealed, down-firing dual 12-inch subwoofer enclosure built to fit under the rear seat of 2014–2018 GMC and Chevy Crew Cab trucks. Each chamber holds 0.80 cubic feet, and the box is made of 5/8-inch MDF with a sprayed-on bedliner finish and spring-loaded push-pin terminals. The down-fire layout keeps the subs hidden and protects them from cargo, which is the main draw against generic prefab boxes that sit on the seat. It suits truck owners who want bass without losing floor or seat space, but the small sealed chambers limit deep output and the box is built for specific subwoofer depth and mounting needs.
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Lowest price we've seen: $131.12 on Nov 9 at TWIST. Tracked across 5 stores since Nov 9.
Owner feedback on this enclosure centers on fit and build for the money. Truck owners report it drops under the Crew Cab rear seat as intended and holds up well, while some note the small sealed chambers and shallow mounting depth limit subwoofer choice and low-end output.
This is a dual 12-inch sealed subwoofer enclosure built for under-seat installation in 2014–2018 Chevrolet Silverado and GMC Sierra Crew Cab trucks. It uses a down-fire design, so the subwoofers face downward from beneath the seat.
The enclosure is made of 5/8-inch MDF with a black sprayed-on bedliner coating. Each chamber has 0.80 cu. ft. of space. Spring-loaded push-pin terminals are used for speaker wire connections.
It fits Crew Cab models only. It does not fit Double Cab trucks.
