Brothers new universal speaker system is designed and manufactured specifically for "under seat" installations. Compact ABS unit with one 8" woofer and two piezo tweeters in each enclosure. The 8 inch woofer has a 200 watt capacity. If you've got the space we have the solution! the 8 inch woofer enclosure measures 11 inches wide x 12-1/2 inches deep x 3 inches high. Sold in pairs.