Lanzar OPTI1224D 12" Dual 4 Ohms Optidrive Series Car Subwoofer
Lanzar OPTI1233D at Onlinecarstereo.com
lanzar optidrive 12's wiring to a 2 ohm load - YouTube
Lanzar OPTI1233D at Onlinecarstereo.com
Amazon.com: Lanzar 12in Car Subwoofer Speaker - Black Non-Pressed Paper Cone, Stamped Steel Basket, Dual 4 Ohm Impedance, 1000 Watt Power and Rubber Suspension for Vehicle Audio Stereo Sound System - MAX12D : Electronics