QBOMB15VSQ QBOMB 15 Inch Center Vented Dual Ported Subwoofer Enclosure Speaker Box for Car Audio Sound Systems, Square Finished with Durable Bed Liner 3/4" MDF High Quality Spring Loaded Terminals DUAL ENCLOSURE: Upgrade your audio system with this high-performance 15-inch dual subwoofer enclosure box CENTER VENT: Features center vent helps generate boosted bass for sound you'll crave EASY SPEAKER INSTALL: Spring-loaded terminals allow for quick, easy, and safe speaker installation (speakers sold separately) DURABLE CONSTRUCTION: Crafted from heavy-duty medium-density fiberboard that's built to last with durable bed liner spray for added protection and longevity SPECIFICATIONS: Subwoofer enclosure box measures 18-inches deep, 38-inches wide, and 16.25-inches tall; Air space: 2.3 cubic feet; Tuning frequency: 39Hz
