The Q-POWER QTW6X9 Single 6"x9" Wedge Subwoofer Boxes feature solid 5/8" MDF construction and terminal cup connectors. Turn your ride into a sound machine with the help of the Q-POWER QB-QTW6X9 Speaker Box Enclosures! The Q-Power Q-Bomb Single 6"x9" Wedge Subwoofer Boxes are finished with a black bedliner spray for increased durability. Turn your ride into a sound machine with the help of the Q-Power 6"x9" Subwoofer Enclosures! If you want the most output for your money, this is the way to go. We are an authorized Q-Power dealer