Amazon.com: B&C 15TBX100 Studio Subwoofer : Musical Instruments
2x B&C 18DS115-8 18" Neodymium Subwoofer Speaker 3400W 8-Ohm Bass Sub 35-500 Hz. 848864050591 | eBay
Amazon.com: B&C 18IPAL 18-Inch 3400W Power Soft Woofer, Black, 18.00 x 5.00 x 18.00 : Electronics
B&C 15SW115 is a lightweight very high power 15" woofer for speaker subwoofer systems with a 4.5 inch split winding voice coil. B&C 15SW115 Speakers - B&C 15" 15SW115 high power speaker