I am using Roon on the NAIM NDX2. When I change volume control on the NDX2 from fixed to variable I can control the volume via the NAIM app, but on Roon it keeps saying ‘fixed’. How can I also control volume via Roon?
Try fully power cycling the device (ie. remove the power cord) after you have set it to Variable Volume in the Naim app.
Power cycling the device allowed our in-house NDX 2 to appear in Roon as variable volume. We will forward this report to Naim to see if we can improve the behavior here.