Single 10" Down-Firing Enclosure, .65 cu.ft. x 1. Mounts under Driver Side rear seat in trucks/middle seat in SUVs. Woofer Magnet Diameter (Mounting depth): 5"(5 7/8"); 6"(5 7/8"); 7"(5"); 8"(4 1/4")

Holds up to a 6 1/2" Woofer and 2" Tweeter, For 6 1/2" Component Speaker Set.