Amazon.com: Single 12" Subwoofer Regular Standard Cab Truck Sub Box Enclosure 5/8" MDF : Electronics
5 /6/8 /10 Inch Super Slim Square Active Speaker Home Theater Bluetooth 12V 110V 220V HiFi Portable Boom Box Bass Subwoofer Audio Speaker Box - China Active Speaker, 5/6/8 Inch Subwoofer | Made-in-China.com