I need to know what to tune my amp to. I have an Alpine MRP 500 at 2ohms by 500 Watts RMS powering an Alpine Type R Dual 4 Ohm Voice Coil. I have two amps powering two subs. One amp per sub. Someone help please. I dont know what to tune my knobs to on the amp. Do I install them and adjust it as I like it or is there set specs it should be at?