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The Rockville RQB15 Qbomb is a single 15-inch sealed subwoofer enclosure built from 3/4-inch Grade A MDF and coated in a thick bedliner spray. The bedliner makes it weather resistant and very hard to damage, and the 3/4-inch MDF resists flexing so the woofer can perform cleanly. Joints are glued, stapled and siliconed at every seam, which is more assembly work than most budget boxes get. It suits anyone who wants a tough, US-made box for one 15-inch sub and does not need a custom-tuned ported design.
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The Rockville RQB15 is a single 15" vented Qbomb subwoofer enclosure. It is a ported design tuned to 37Hz and is made in the USA.
The box is built from 3/4" MDF. Every joint is glued and stapled, and a layer of silicone is added to each seam. The mounting holes are cut with precision machinery.
The outside has a bedliner spray finish, the same kind of material used in the back of a pickup truck. The finish makes the enclosure weather resistant, corrosion resistant and water resistant. Speaker connections are made through gold spring-loaded terminals.