Rockville RQB15 QBOMB 15" Vented Subwoofer Enclosure, 3.85 Cu Ft — Bedliner Finish (Tuned 37Hz)

Deep, controlled bass from a vented 3.85 cu ft enclosure tuned to 37Hz—designed to mate with most 15-inch subwoofers in car audio systems. Built in the USA using 3/4 inch Grade A MDF, each cabinet is precision-cut by craftsmen with over 20 years of experience to ensure rigidity and minimal woofer distortion. The exterior is finished with a heavy-duty bedliner spray—the same protective coating used on pickup beds—providing resistance to weather, corrosion, and impact for long-lasting use. Assembly is reinforced with extra glue, staples, and silicone-sealed seams to eliminate panel flex, improving clarity and protecting the driver. Installation is straightforward thanks to high-quality gold spring-loaded terminals and a pre-cut mounting hole that accepts subs up to 12.5 inches deep for quick setup in cars or trucks.