Well, there isn't any need to disable the IR reception since the BC9000 is located at 1st floor and the BS9000 including BeoMedia 1 is located at the ground floor. While I might not be able to control BeoMedia I would assume that I can get the audio (net music) via the MasterLink and then via the 1611 converter I should be able to get the audio output to BC9000, or?
Update: To follow-up on above question; but what kind of connectivity is possible betwen MasterLink and DataLink?