Tweeterguy, Many receivers, like Yamaha, don't use Audyssey and are only set up using the included microphone. I have this exact problem at home. I tried extending the microphone with a length of cat6, and the results are OK, just not as good as I have heard with an unaltered mic.I actually brought this up to the Yamaha engineers at Cedia. They mentioned that they had heard this feedback already.