Amazon.com: CT Sounds STRATO-8-D4 1200 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm : Electronics
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