KEF R8a R Series Dolby Atmos Angle Passive Speaker (Dual)

I am using it with Denon avc-x4700h. I am currently using upfiring. Even now the effect is visible, but I learned that I can get the best effect by mounting it on the ceiling. I'll try that too.

I am looking for a speaker to use as an upfire. I have been using an atmosphere-supported amp for 4-5 months and now I want to take the meaning of environmental sound one step further. The fact that there is a speaker kef that caught my attention in the R8a seems like I would prefer the r8a, which is the most logical choice after a few looks and research in terms of brand awareness.