A:Answer You can connect Sonos brand in ceiling speakers to arc, but as of right now theres no support for atmos capability. You can use them as rears however. Im not sure of any other ceiling speakers that can be used with arc, so if you want ceiling atmos NOW you would have to get a new wired system. Albeit, they may add it (Sonos ceiling speaker atmos capability) in the future wjth updates, but nothing is confirmed atm.