Amazon.com: B&C Speakers 12FHX76-8 Subwoofer 12-inch Full Range Speaker with Modified Exponential Horn Flare 8 Ohms 350 Watts Rms 700-Watt Max Pro Audio Component Speaker Driver for Motorcycle Car : Electronics
Amazon.com: B&C Speakers 10NDL64-8 LF Drivers Studio Subwoofer 10-inch Woofer Pro Audio Component Speaker Driver for Motorcycle Car with 8 Ohms Impedance 250 Watts Rms 500 Watts & Neodymium Inside Slug Magnet : Electronics
Speaker B&C Speakers 4NDS34, 8 ohm, 4 inch
Test Bench: A 12-Inch NBR Pro Sound woofer from B&C Speakers | audioXpress
Amazon.com: B&C Speakers 12PS100-4 12-Inch Woofer 700 Watts Rms 1400 Watts Max 4-Ohm 2-Way Pro PA Speaker & Floor Monitor Pro Audio Component Speaker Driver for Motorcycle Car : Electronics