DQC-800B Dyna Quest 20 Cm Super Slim Active Subwoofer | Built in AMP Sub Woofer Speakers | Croooober
RW10D4 Echo Series 10 Inch 500 Watts Power Dual 4 Ohm Voice Coil, 2" Black-Coated 4 Layer High Temperature Voice Coil, Competition Grade Pressed Paper Cone, Car Audio Subwoofer - Recoil Audio