I got my setup in 2 rooms and option 2. This works as I said.
I have been looking in the manual and it says:
Powerlink should only be used in 1 room if there is no speakers to the audio system.
Then there is a switch on the 1610 which should be set to 3rd position.
You should set the option to 0 for the Beomaster 5500.
Sound 0 store
The above is for 1 room for AV9000 and audio system.
What year is the AV9000? Type number?
It could be that the 1611 would work better but try the 1610 instructions first.