QPower QBOMB15VSQ QBOMB 15 Inch Center Vented Dual Ported Subwoofer Enclosure Speaker Box for Car Audio Sound Systems, Square

Dual Enclosure: Enhance your audio setup with this high-performance 15-inch dual subwoofer enclosure box. Center Vent: Includes a center vent that aids in producing enhanced bass for a sound you'll desire. Easy Speaker Installation: Spring-loaded terminals enable fast, simple, and secure speaker installation (speakers sold separately). Durable Construction: Made from heavy-duty medium-density fiberboard that's constructed for durability with a protective bed liner spray for extra strength. Specifications: Subwoofer enclosure box dimensions are 18 inches deep, 38 inches wide, and 16.25 inches tall; Air space: 2.3 cubic feet; Tuning frequency: 39Hz