Yes my system is a 5.1.2 system. I am totally aware of Atmos and how it works and how to set it up.
The Knock sounded like it came from outside my theatre. To go along with the sandstorm scene in that movie that enveloped all around us.
All I am saying is that DSU and Atmos is the best money I have spent on my Theatre since I built it. It is a game changer as far as Immersive sound is concerned