20cm slim subwoofer 275W max bass speaker 8" car woofer installation depth 64 mm 4260101643629 | eBay
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