Alpine (ALPINE) powered subwoofer 20cm under the seat-mounted SWE-1080
Alpine
Kenwood KSC-PSW8 Compact Active Subwoofer, Black
KENWOOD
PIONEER TS-WX140DA Compact Series 8" x 5-1/4" - 170 W Max Power - Compact Active Subwoofer
Pioneer
Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub
Rockville