Amazon.com: Massive Audio SUMMOXL154-15 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 15" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
CORAL 38cm cone type woofer unit 15L-2 good operation | eBay
Pioneer TS-W 384 C 38 Cm Subwoofer Black Leather With Box | Sub Woofer with BOX | Croooober