I just set out to calibrate my system and I find it easier to use the internal tones than the avia disc. Internal will allow you to do all 7 speakers. Here is my question. When you go into the test tone menu the receiver automatically goes to 00 in volume. If I calibrate to 85db most of my channels are close if not set on +12db Is this ok? It seems to me that they shouldnt be that high. should I try calibrating to 75db? Help!!!!