B&C Speakers 12CLX64-8 Coaxial Woofer 12-inch Dual Voice Coil Speaker Full Range 8 Ohm Pro Audio Component Speaker Driver for Motorcycle Car 500-Watt with Neodymium Ring Magnet : Amazon.ca: Electronics
5Core 12" inch 1200 W Premium Audio Subwoofer 8 Ohm Voice Coil PA DJ Speaker | eBay