Report "Hi I have 2 mtx thunder 7500 dual voice coil and I have them wired to 2 ohm's I have them wired to a older alpine mrd-500 amp and I cant find out how to tune them correctly I was just wonder if anyone could help one of the problems is I have the amp hooked up to the stereo and when I turn up the stereo the amp shuts off ive check the ground its fine and on a clean surface as soon as I hit 5 on the volume it shuts off the amp is rated at 500 watts at 2 ohms and the suns are rated each at 400 watts rms I don't know if I have the gains set way to high or what it is if anyone could help id really appreciate it?"