Switching between USB Class 1 and USB Class 2 operation
Your DacMagic 100 will come set to driverless USB Audio Class 1.0 by default, but it can be configured to run in either USB Class Audio 1.0 or 2.0 mode.
To change USB Class, press & hold the Source button while bringing the unit out of standby . One of the digital input source LEDs will illuminate to indicate the current USB setting: Digital 1 represents USB Audio Class 1.0, likewise Digital 2 is USB Audio Class 2.0.