The Q Power 15-inch dual heavy duty vented subwoofer enclosure features solid 5/8-inch MDF construction, charcoal carpet covering, a dual vented design, and terminal cup connectors. Turn your ride into an incredible sound machine with the help of the q power 15-inch dual heavy duty vented subwoofer enclosure. If you want the most output for your money, this is the way to go. Q Power provides top quality speaker boxes and accessories, and the Q Power Q bass15 is no exception. Impress your friends and family with your 15" woofers that will hit hard in this enclosure.