Amazon.com: Lanzar 12in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, 4 Ohm Impedance, 1000 Watt Power and Rubber Suspension for Vehicle Audio Stereo Sound System - MAX12 : Electronics
Rockville W12K9D2 V3 12" K9 V3 4000w Peak/1000w RMS Car Subwoofer DVC 2-Ohm Sub - Walmart.com
PRV Audio 12MB1000FT-4 12" 4-Ohm 1000W Midbass Car Pro Audio Speaker M — Showtime Electronics
Hertz Mille PRO MPS 300 S2 Shallow 2 Ohm 12" 1000W Subwoofer | eBay