MB Quart PWE304 12" Car Subwoofers - Sonic Electronix
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
Mb Quart Mbqrg-sub-1 Rugged 400 Watt Polaris Ranger Specific Plug And Play Subwoofer Tuned System With Subwoofer, Enclosure, And Amplifier, Black : Target
MB Quart PK1-113 Premium Series 5-1/4" 2-way car speakers at Crutchfield
MB Quart PWH-304 (pwh304) 12" Dual 4 ohms Premium Series