FW1-254 Formula 10 Inch 4 Ohm DVC Subwoofer | MB Quart
MB Quart DS1-204 400 Watt 8 Inch Shallow Slim DVC 4 Ohm Car Sub, Single Speaker - Walmart.com
MB Quart 400 Watt 12 Inch Subwoofer + Slim Sub Box Enclosure + Car Amp + Wiring - Walmart.com
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
Mb Quart Ds1-254 200 Watt 4 Ohm 10 Inch Shallow Space Saving Slim Subwoofer With 2 Inch Dual Voice Coil For Vehicle Audio Systems, Black : Target
MB Quart PWD304 12" Dual Voice Coil 4Ohm Subwoofer (New!) - Wolf's Big Bad Garage
Amazon.com: MB Quart RW-110A 800W Reference Series 10" Slim Low Profile Compact Under-Seat 4-Ohm Active Powered Subwoofer Enclosure with Built in Amplifier for Car RV ATV : Everything Else
MB Quart PWE 304 12" subwoofer with dual 4-ohm voice coils at Crutchfield