I always used direct mode or stereo on my Denon. Not using DSP effects. But long story short : I bought the Denon AVC A1D in year 2000 planning to build a full 5.1 setup and I never got the time and money to go further with this project. So I have no experience with Atmos setups, room correction and DSP things. As written close to my Avatar : I am a noob