Hi-Power 4 Ohm Sub-Woofers Brown Injected Polypropylene Cone Specially Treated Black Rubber Edge Suspension Bumped & Vented Motor Structure High Temperature Kapton Voice Coil Bandpass Alignment For Extra Deep Bass Quick Connect Input Terminals Plexi-Glass Front Window Woofer Size 12' Power Peak 1200W Frequency Response 35Hz-1K Hz Woofer Used LBF127 Ports 4