Listening to some music, I realised I have 5 volume controls, all completely independent of one another:
- The volume control in the audio player
- The OS (Windows) main volume control
- The USB / Direct mixing knob on the audio interface
- The volume knob on the audio interface
- The volume knob on the amp
It's a bit too much control really, as if the sound is too quiet there are 5 places you need to check the volume setting.