I don't think that you can internally make the SR9300 do this. It would be technically possible to bridge the 8- channel direct input so that channels 6 and 7 will be "slaved" to 1 and 2 but this would only affect information going through this input and I cannot say I have ever tried it on our resident 9300- I don't think they'll let me either.
Really? I cancelled my sub of HiFi choice as I thought they were going under as Home Entertainment. I have lost touch with HiFi Choice, which is a shame as they are pretty good and honest in their reviews. did they give an indication of power - I ask as the 9200 I heard was seemed underpowered (but not lacking in power itself) compared to it's competition ?
I don't think they provided any lab test results russell (as they don't with First Tests). But they basically said that bigger more complex soundtracks caught the amplifier out & it at times struggled with the grandest of both dynamics and soundstages.
Stereo, being a simpler sound format, was more to the amp's favour according to them.