Amazon.com: ALPHASONIK APP122 Complete 1500 Watts Dual 12" Subwoofers Car Bass Package with Amplifier and Installation Kit Included - 2 Sub Woofers with Grills in Custom Ported Box Loaded Enclosure, Black : Electronics
Road Thunder 8 in. 240-Watt Powered Vented/Ported Bass Tube Plus Amp Wire Kit RT8PT + AKS8 - The Home Depot
Rockville DV12K6D2 Dual 12" 4800w Car Subwoofers in Plexi Sub Box+Amp+Wire Kit - Rockville Audio