I am running 3- L7 Kickers right now and I think I have blown 2 of them this weekend. I am going to have to buy new subs. I am looking at the new model L7's to replace what I have, 2- JL W6 12", and the new MTX 88series Thunder Squares. I been out of the stereo thing for quite a while and this set up was in my vehicle when I got it. They were in there since 03 so I think they were just worn. They hit hard and sounded ok I guess just looking for nice middle of the road subs sq and spl which I know can be hard.