Okay guys, I need some advice very quickly, as today is the last day I can return my Denon receiver.
I am beyond my return window.....sigh
I purchased a new Denon 4311 from an authorized internet dealer, and ever since I have been having problems with the audyssey auto calibration.
The outputs has been constantly harsh, with what looks like boosted high frequencies.
I have already received a replacement microphone and this helped with improving the low frequencies, but the highs still remain exaggerated.
I have done a microprocessor reset, but not a network reset.
bottom line, it is painful to listen to this receiver at high volumes.
I am starting to get frustrated with this thing.
What should I do?
Thanks for your time.
BTW, I called Denon support today and they told me "you don't have to use audyssey"...WTF!!!
My theory on why this happens is XT32 being more sensitive to setup issues than lesser versions. The two variables to look at are mic positioning (height and pattern) and mic stability (you really have to use a mic stand with a proper adapter and I like the mic just snug - not overly tight.)
So try raising or lowering the mic maybe 4" and also try a diamond pattern - i.e. focus the various positions around the MLP so the MLP is one point of a diamond, then add the remaining around that in some fashion (like two in front and two in back of the diamond.)
Don't forget the first measurement is the critical one, mess that up and you're wasting your time.
I have fixed most of my problem.
It appears that my 10/100 network switch power supply was emitting either RFI or some sort of high pitched electrical interference that was being picked up by the Denon and then output by all of my speakers.
I have since replaced this switch with another. The nosie is gone and my ears are much happier.
Man, it was so frustrating paying for a piece of equipment that I couldn't enjoy because my ears were ringing so much.
I re-ran auydssey and still have the high frequency boosts, but its not nearly as harsh or ear fatiguing now.
Sorry to vent, but maybe this will be helpful to someone else in the future.