2x DS18 EXL-XX12.2DH 12" Subwoofer 4000 Watts Dual 2 ohm Car Bass Sub Speakers 810005188258 | eBay
Amazon.com: Massive Audio SUMMOXL124-12 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 12" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics