Not loud enough

Hi there any thoughts on why my NAD M10 is so much quiter when using ROON rather than controlling it with BLUOS <?

With Bluos loud is about 60- 70%…with ROON 100% is OK for background…can be talked over…

Are you using Volume Leveling ?

If so you can set the volume there , as far as I remember the default is quite low

Also do you have Headroom Adjustments set ?