I did run the audissey after hooking the amps because the Emo-guy told me to do that when i bought them.The only difference this time was that my front,s was set to -7.5 and -8 instead of - 10 and -10.5 whit the Onkyo alone.When i call Onkyo i ask the guy few times if hi is sure that i,m getting 110WX7 and hi told me that is the same as when i run 2 channels only.I think this is BS Last night i turn my system on and before i switch to zone2 to power the ampp,s whit the 12v trigger i heard a low and hollow sound from the speakers( like it was coming from another room or something) any idea what that can be?