But then these would also act as fronts…..which probably is, what has happened in your case (?).
The backs/the 9’s must be on their own PL port in the Eclipse and they must be adressed/assugned as backs/rears.
If you modify the main Speaker Group (1/tv), they will all play togther in their assigned roles, typically with the tv speakers as a center channel.
If you want the 20’s respectively the 9’s to play seperately, you must create a Speaker Group just for that.
P.S.
You can daisy chain the 20’s to another and the 9’s respectively from their PL connection.
The roles L/R etc is conigured in the Sound Menu of the tv.
Did I understand your concerns correctly?
MM
Location: Flensborg————Danmark