just an update on the amp issue.I pluged in an Adcom gfa-555 with kimber pbj's to the onkyo and the sound and performance is astounding!I even turned it up to try to get the distortion lights to flicker and it got scary loud and clear with barely a flicker of the lights.these m80's are MONSTERS and ate up every bit of the 325 watts/ch.just one question,dose anyone leave their amp on all the time and would it shorten the life of the amp if you did so?