OK I have a polk audio 300.2, 150 per channel but the birth sheet states 180 into 4ohms. So using 180 I should get a voltage of 26.83 (sqrt(4*180)). My subs are assassin 8's which are 4ohm svc rated at 350rms. Now when I check my amp's voltage I get 40+volts! I can turn the gain up all the way with out the subs distorting. Am I doing something wrong? What does it sound like when the amp clips? I have all the settings on the radio flat if that helps.