600W Car U-Seat A S P A Bass HiFi Slim Sr US $28.74 tdrlogisticsllc.com
Focal Powered Subwoofers at Crutchfield
FOR Car 12" 1500W Car Truck Shallow Slim PASSIVE Boom Bass box Audio Subwoofer | eBay
Flat Sub 25 | Onlineshop
Making a Car Subwoofer Box - YouTube
Source Active 10 Inch / 12 Inch Slim Car Audio Speaker Box Car Subwoofer Shallow Mount Subwoofer on m.alibaba.com
Amazon.com: MB Quart DS1-204 Discus Shallow Mount Subwoofer (Black) – 8 Inch Subwoofer, 400 Watt, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures : Electronics
Amazon.com: Rockville WHEEL OF BASS 8" Slim Under-Seat Powered Truck/Car Audio Subwoofer Sub : Electronics