I follow what you are saying now... I am not sure there is a way to turn ATMOS off/on but can look around in the settings. I can turn ARC off/on to compare room correction or not... I could turn off my ceiling speakers to see what that does. I will try to poke around the next few days...

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85