Use the following procedure to select whether the Mac keyboard volume buttons control the level of your Apogee interface's headphone level, or speaker level:
- Launch Maestro 2 and go to the System Setup tab.
- Under Keyboard Volume Control, select your desired output in the drop-down menu- Speaker, Headphone
Duet iOS, Duet II, Quartet
For advanced tips, see Advanced use of Apple Keyboard volume controls