I have a Devon AVR-S720W, Xbox One S with the Beta toggle for Passthrough (passes audio straight to amp) and Onkyo SKH-410 Atmos speakers that sit on your regular 5.1 speakers. Unfortunately even though the "DDAtmos" light comes on in the amp I don't seem to be getting the Atmos sound, frankly not much seems different than the regular DD 5.1. I think the sound field depth seems higher but seems to be more towards the front of the room, I have tested with the "John Wick" rain scene and the opening to Star Trek Beyond (Kirk in the cave like chamber).
Any ideas? I've tried boosting the db level of the atmos speakers to 3.5. Will probably try angling the atmos speaker so it points more towards the center of the room and possible manual calibration of speakers with iphone based decibel meter app.