Amazon.com: B&C 18SW115-8 18-Inch Neodymium Subwoofer - Set of 1, Black : Everything Else
18SW115 LF Drivers - B&C Speakers
B&C Speakers SpA - New Release: The 18DS115 subwoofer with a new, longer, four-layer aluminum voice coil. Increased Xvar and very high motor strength at the same weight and cost. Higher sensitivity,