hey sir i just readed all the post. and i have a aq2200.d and a dd-1 too on my mayhem 15" and i put the track 3 and it wastn loud so i put the track 7 and my amp does the little humming noise too. and when i put music on sometimes and i can hear the coil hittind (NO GOOD I KNOW LOL) so now im gonna try the track 5 and gonna see how it perfoms. yes the lcipping light is always on for me.. but i trust more the dd-1 then the clipping light lol. but i dont use it anymore .!