Looks like they have really changed things since the days of my STR-965 (which I still use). I looked at the picture of the back panel of the STRDH-770 on Sony's website. They label the speaker outputs (among other things) Front A and Front B. I am wondering if in 2 channel stereo mode it would allow connecting an A and a B set of speakers like I described above? There is a small button on the left side of the front panel that is labeled speakers. I wonder if it allows you to toggle between A, B, A+B and off like my old unit. I didn't download the manual for the 770, I was just going by the visuals.