You can only connect speakers to the Denon via a physical connection, i.e. via cable. The Sonos only have a jack connection, and the Denon does not have this.
You can only connect speakers and/or a subwoofer to the Denon via a cinch cable (red and white plugs).
Here is the Denon page with instructions https://www.denon.com.hk/en-hk...