Audyssey sets everything with the exception of the speaker size. The AVR will set your speakers to small or large. Audyssey highly recommends that you manually change this setting to small, if your receiver sets them to large.

I used to think it did nothing but apply filters to the different channel frequencies, but learned I was wrong after reading the Audyssey thread at AVS. The founder and chief technical guru routinely responds to questions there. It’s a very long thread, but if you search it, and make sure you put Audyssey in the Poster name block, you will more than likely find the “correct” answer to any question you might have in regards to using Audyssey.

Here’s a quote from Audyssey that I found interesting……..

 Originally Posted By: audyssey;17490415
My theory still is that what the mic is measuring in MultEQ is different than what you are measuring with the SPL meter. The nature of these speakers is such that this is quite likely. In the MultEQ measurement you are collecting a time domain response that depends heavily on reflections and direct sound. It is analyzed and a level estimation is being made. In the SPL meter measurement you have no time domain information and you are getting a number using the RMS detector in the meter. So, it's entirely possible that both are "right", but that the asymmetry in the room/boundaries are causing the MultEQ calculation to be biased lower.

It's just a theory... My vote is for A.



Thread: http://www.avsforum.com/avs-vb/showthread.php?p=17490415#post17490415

Audyssey FAQ: http://www.audyssey.com/faq/index.html


As a side note, I like my center channel 2 db higher than the R/L. I always check channel levels with my SPL meter and adjust as needed, which typically is very minor, with the exception of my center.