Crank up the volume with the Q Power QBOMB15HP Singe 15 Inch Side Ported Speaker Box Enclosure. This sub box measures 17.25 inches high, 22 inches wide, and 22 inches deep. It features 3.2 cubic feet of air space. This sub enclosure model also features a high-quality spring-loaded terminal. The electronics of this box has a tuning frequency of 32HZ. The single-port design allows you to fit 1 subwoofer for optimal sound. The QBOMB is designed to be rugged and tough by being coated with a durable bed liner. This protects from bumps and scratches as a result of anything rolling around in your trunk. Plus, the subwoofer protector is also made with 3/4 MDF wood that provided added quality and durability. Therefore, you'll have peace of mind and can focus on keeping that bass bumping. Take your car audio experience to the next level with the Q Power QBOMB15HP Single 15 Inch Side Ported Speaker Enclosure Box.