Amazon.com: Planet Audio BBD12B 12 Inch Car Subwoofer - 2500 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually, Black : Electronics
BOSS Phantom P156DVC 15" 2500 Watt Car Audio Subwoofer Sub Woofer DVC 4 Ohm - Walmart.com
Power Acoustik MOFOS-12D4 12" 2500 Watt Car Subwoofer+Mono Amplifier+Amp Kit - Rockville Audio
DS18 EXL-X12.2D 12" Car Subwoofer 2500 Watts Dvc 2-Ohms
Pair 2500 Watts 15 Inch Raw Dj Pa Audio Speaker Subwoofers Replacement 8 Ohm Magnet Audio Home Speaker Sub Woofer Bass Sdc-1550 - Speaker Accessories - AliExpress