KICKER
Kicker HS10 10" Hideaway Powered Subwoofer
Pioneer
PIONEER TS-WX140DA Compact Series 8" x 5-1/4" - 170 W Max Power - Compact Active Subwoofer
Alpine
Alpine (ALPINE) powered subwoofer 20cm under the seat-mounted SWE-1080
Rockville
Rockville SS10P 10" 800w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub,green