DS18 EXL-X15.4D 15" Car Subwoofer 2500 Watts Dvc 4-Ohms
Amazon.com: New BOSS Phantom P156DVC 15" 2500 Watt Car Audio Subwoofer Sub Woofer DVC 4 Ohm : Electronics
Single 12” 2500 Watts T2500 Package - Car Audio Subwoofer Box Bundle - Timpano
Planet Audio BBD12B Big Bang Series 12 Inch Car Audio Subwoofer - 2500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck Boxes and Enclosures, Hook Up To Amplifier - Walmart.com