MB Quart Formula FW1-254 10 Inch Dual Voice Coil 400 Watt Car Audio Subwoofer - Creative Audio
MB Quart FW-1254 Formula 10 Inch 600 Watt DVC 4 Ohm Car Audio Subwoofer (4 Pack) - Walmart.com
MB Quart DWI-304 (DWI304)12" Dual 4 ohm Discus Car Subwoofer
Amazon.com: MB Quart DS1-254 Discus Shallow Mount Subwoofer (Black) – 10 Inch Subwoofer, 400 Watts, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures : Electronics