my Roon server is installed on a synology server and my endpoint are an Apple TV and two Libratone zipp speakers. I control the RoonApp via an iPhone XS, since my iPad 4 is not supported by Roon.
Network wise:ubiquity UniFi etc… Cat 6e etc.
When I play my music via the Apple TV, the volume is on 100%, since the Apple TV is connected via HDMI to the receiver., which controls the volume of the speakers. I use airplay as streaming protocol. When I transfer from the Apple TV to the libratone Zipp endpoint the volume keeps on 100%, almost blowing up the speaker and giving my wife a heart attack. When I turn the volume to, let’s say 20% and transfer the zone back to the Apple TV endpoint the volume is a soft 20%. I would like to see that the volume of each endpoint has an individual volume setting.