I just set up my Denon 1913 . It is 7.1 and I assigned the back surround speakers which are in another room as Zone 2. In the main room I have 5 speakers. When I set the Denon 1913 up the first day I only had 2 speakers in the main room and it works fine in stereo. Today I added a center speaker and 2 back speakers. I ran the audessy after the additional speakers were attached and they worked in the test. Then I turned on the radio and only the two original speakers are playing in stereo. the three new speakers are not working. Is that the way the denon works when the incoming signal is in stereo? i have not tried the blue ray player yet to see if all the speakers will work with a source that has surround sound. I was hoping all 5 speakers would work when I play music from the radio. Is there a way to set the denon to use all 5 speakers in the main room ?