He had them wired to 1 ohm for each sub, and that's what I'm going to do. I traded him my 4 kicker comp 12's, 2 powerbass 10's, and a 400w powerbass amp. I was going to install all of it in my 03 2500hd until I got in a wreck saturday, so now I've just been staring at them in my room, figured I'd try and learn some more about what I have. Thanks