i never hooked them up i didnt have the trunk space,i bought a set of crystal competition x2 and have had these hooked up to a DDZSE,originally i was going to hookup the DD9512s to a modified stetsom 7kd,then bought a stetsom 7k2d and now everything will be up for sale cause ive decided to stick with the DDZSE,so i also have a DDZ2.if you buy the pair you can either run .5 or 2ohms but im not breaking up the pair and would hold till you could buy it, either stetsoms would be sweet if you have the budget for a ton of batteries lol.The modified stetsom has hug wires and was built to run at .5ohms all day,was told its pushing about 12000watts at this,and the 9512s can take up to 6k a piece.They make a great pair!