Well... I did manage to play music from my Sooloos system. It is fantastic.

I received a new config file from Ratbert for my 818 and retyped the DSP7200s as suggested. And that combination certainly did the trick. I will still have to do some further clean up work (e.g. work on the controller) but now I have a good basis to work from.

Thank you all very much for your assistance and in general for all assistance given to fellow HHers. It is highly appreciated.