Originally Posted by SpenceJT2003
I'm considering picking up a pair of M3 or VP100 on-wall speakers to suspend from my ceiling for use as an overhead Atmos audio channel.

Has anyone successfully mounted these to a ceiling?

Yes, Nick Buol. Can be done. Not a good idea though. In ceiling speakers have concentric drivers so response is the same in all directions more or less. Vertically arranged drivers should be used as intended as they roll off or “lobe” treble once you listen below the tweeter axis.