If I ever go for Atmos or something similar I will likely buy four small, cheap, two way, sealed speakers and install flanges around the periphery such that I can mount them in a piece of plywood and install them in my dropped ceiling. I am not buying into the need for specialized speakers for the in ceiling effects. I have plenty of amplifier channels available and don't see the need for high quality overhead surrounds. I would also spring for the model 5000 amp which has plenty of power and is $100 cheaper than the monoblocks with three more channels to boot.