Hey,
I have a Raspberry PI4 and volumio installed. I connecting FiiO K5 Pro to an usb.
The problem is the output volume is lower than when i connect dac to PC, i was do a A/B testing and Raspberry has lower volume.
In volume settings in volumio volume control is set to none.
I typed in ssh alsamixer and this is what i got. It looks like software volume control is enabled and it’s not a bit perfect.