How does in-ceiling, Elevation and up-firing speaker rank for Atmos in a 5.2.4 config? Well I think I might be crazy enough to find out : r/hometheater
So how are you guys dealing with Atmos ceiling speakers? | HardwareZone Forums
Focal Introduces Next Generation of Dôme Flax System with Dolby Atmos Compatibility Using ICW-4 In-Ceiling Speakers | audioXpress
How to install Dolby Atmos ceiling speakers | Digital Trends