Roon supports Devialet AIR

[BoyScout]

@BoyScout


Go into Settings -> Audio

Scroll down and in the Network section you should see your Devialet

Enable it if you haven't done so.      ALREADY DONE

then click on the two small gear wheels.

Choose Device Setup

You are on the General Tab.

Hide Volume Control in Roon - should be set to NO   ALREADY DONE

External Volume control - set to None   ALREADY DONE

Now Click the Playback Tab.

You can set Buffer size ( I use 50ms)  DID IT NOW

Max Sample Rate - I set to "Up to 192kHZ"     DID IT NOW

Click "Save Settings"     DONE

Changes you make on Roon will be reflected on Devialet display.

First of all, thanks for the support, baddog.
As you can see above the volume set up was already done like you mentioned, but remains altered. I can´t control the Dev volume, just the Roon volume.
The Sample Rate i altered according your suggestion.
There´s something missing here...