Well I have 2 kicker cvr 12's 4-ohm. I have a kicker kx600.1 running the both of them and I am not happy with em. I want them louder. My amp is only turned up about 3/4 on the gains and I can smell the voice coil when I play them for a while. I dunno what is goin on because I am only gving them around 200 or 250 a piece. Any suggestions?