Some time passed since last time I read this discussion and I see that there are still some misinformation or misunderstanding. I am very surprised that no one from Audyssey explains here how their system works.
I will try, but first please consider that I am NOT
an “Audyssey expert”, I am trained by them, I attend almost every training and demo they provide in MA or CEDIA and I calibrate receivers equipped with “Audyssey Pro” option, so I have some experiences in this field. (BTW it is Audyssey not Audessey
1. “Audyssey MultEQ XT” removes distortion caused by the interaction of sound from loudspeakers within the room.
2. “Audyssey” provides 2000+ band equalizer for every audio channel.
3. “Audyssey” calibration must be done properly. If not – result may be really bad.
4. “Audyssey” offers couple of options. One of option – which nobody mentioned here - is “Audyssey Flat
”. “Audyssey Flat” is designed for music. “Audyssey MultEQ XT” is designed for movies.
Audyssey created three target sound options (for movies)
All of them are adjustable.
Midrange compensation can be turned off and roll of can be adjusted per every channel.
Why they created “Target Curves”?
Movies mixed for large theaters. In a smaller room at home, Audyssey applies a gentle rolloff for high frequencies and midrange compensation, when you select MultEQ XT. However, if the movie already had the high-frequency corrected for homes, it is better to use Audyssey Flat mode.If you play music, Audyssey Flat is the only proper option.
Chris. Try to listen to your stereo with “Audyssey flat” for several hours and then turn it off, please. I like to know your opinion.
As audioguy wrote: “Audyssey for the price and functionality is a no brainer. If it doesn't work in your environment, there are other much more expensive solutions.”