Andy G XXX:Thanks to all for the useful advice. I've had the main system for a while and am setting up the new blu ray player this weekend. As I am using an older amplifier I plan to make use of the HD decoding in the blu ray and output via the multi channel analogue outputs to the amp. The 5.1 speaker set up is already in place, so I have just been wondering why connect 7.1 between Blu ray and amp, when the amp is only sending out 5.1 to the speakers. I would have to buy another set of interconnects for those other 2 channels (between blu ray and amp), which would seem a waste if they aren't going to do anything!
Correct, it depends where the decoding is taking place - in this case if the blu ray is doing the decoding and outputting 5.1 for all soundtracks, you don't need to connect the extra 2 channels - just means you'll need an extra set of interconnects when you upgrade to 7.1!