Rockville W8K6D2 V2 8" 1400w Peak Car Stereo Subwoofer Dual 2-Ohm Sub 350w RMS - Rockville Audio
10 inch Car Audio Speaker Subwoofer High Power Bass Surround Sound Stereo Sub woofer System DJ Loudspeaker Wide Range Foam Edge Cone 4 ohms 5 Core FR-10-120 WP - Newegg.com
Crunch Car Stereo Amp with 4 3-Way Speakers and Soundstorm Wiring Kit PX-1000.4 + 2 x CS-653 + AKS8 - The Home Depot