Secure your subs so you can turn the music up loud and proud with the QPower QBGMC12 2007 HT QBomb 12-inch subwoofer enclosure. Get more out of your speaker box with the under-seat down-firing design, perfect for delivering a clear sound with more intense base and minimizing standing waves. This 12-inch subwoofer box will keep your speakers secure while the durable bed liner looks sleek and protects your speakers.The QBomb enclosure includes 0.8 cubic feet of air space and a 5.5-inch mounting depth. Custom-fit for 2007-2013 GMC and Chevy extended cab high transmission trucks, this slim subwoofer box is versatile and convenient fitting multiple years of truck models. Due to the customized design, this speaker enclosure does not fit standard crew cab trucks. With the QPower QBGMC12 2007 HT QBomb 12 Inch Subwoofer Enclosure, you can take a drive knowing your speakers are secure and your audio will be enhanced, without interference.