Been scratching my head on this one, the Pioneer has 2 outputs, which I have been using as 1 for 4k tv and 1 for Denon amp, but have been using dual setting on audio out on pioneer which seemed to be working ok, but have now switched to seperate on audio out that as finally done the trick,and amp showing on front panel as Dolby Atmos, relief. Thanks bigboss for taking time to help, very much appreciated.
Thank you
joreth