I know this post might be a little after the fact but I have a 2500 and on some of my sacd's I use the multi channel output The yamaha has a button on the remote for 5.1 analog output.I have a denon 2910 and the sacd's show if they are 2 channel or 5.1. so I'm wondering if I should get an ICBM. how did it work for you Eric cand how did you configure it.