Sony STR-DN1080 can't do 4 Atmos speakers, only 2. You need a 9 channel receiver for what you want.
Cheapest would probably be Onkyo RZ830, RZ730 or RZ630 or Pioneer LX-503 and LX-303.
If you want another Denon get the x4400, x4500 or new x3600.
Cheapest would probably be Onkyo RZ830, RZ730 or RZ630 or Pioneer LX-503 and LX-303.
If you want another Denon get the x4400, x4500 or new x3600.