BOSS Audio Systems BE8D Elite Series 8 Inch Car Audio Subwoofer - 600 Watts Max, Dual 4 Ohm Voice Coil, For Truck Boxes and Enclosures, Hook Up To Amplifier
Kenwood KFC-XW1041 10" Subwoofer, Oversized Cone 600W Max Power - Creative Audio
CM12D4 | 12" Car Audio Subwoofer, 600W, Dual 4ohms, Single - Subwoofers