Dual 12" Vented Enclosure. 1.25 cu.ft. x 2. Mounts behind rear seat, even 3rd row seats, in most Sport Utility Vehicles & Minivans. Woofers are down-firing, leaving more than enough room on the top of the enclosure to mount Amplifiers, Stiffening Capacitors and Accessories. Woofer Mounting Depth: 10". Dimensions: 40"W X 14"H X 13 3/4"BD X 11"TD