Rockville RQB15SQ Single 15" Side Ported Sub Box Enclosure, Solo Baric L7S/L7R Compatible, Deep Bass, Durable MDF, Black Carpet, for Car Audio Enthusiasts

The QPower “QBOMB” Single Square 15″ Large Slot Ported Empty Woofer Enclosure (QBOMB15VLSINGSQ) is a heavy-duty empty subwoofer box engineered to deliver deep, impactful bass performance when paired with a 15″ woofer. Built with rugged 3/4″ MDF construction and finished in a black sprayed bedliner coating, this enclosure is both durable and stylish for any car audio system. Its extra-large internal volume (~3.85 cu. ft.) and wide slot port (15-1/2″ × 4″) are tuned to enhance airflow and low-frequency output, providing superior bass extension and punch. The square-back design with spring-loaded push-pin terminals simplifies installation and ensures secure connections.