Be aware if you own a Macbook from 2016 or later you may need to purchase an additional USB-C adapter or a USB-C to USB-B cable.
You should notice that the EDGE A appears as 'CA Edge 2.0' under Output within your Sound Settings (System Preferences > Sound> Output).
EDGE A listed as an Output device within Sound Settings.
We would recommend selecting the highest available.
EDGE A Audio MIDI Setup options