Apollo Thunderbolt Software Manual Working With Apollo 23
Setting the I/O in the Operating System
If a software application doesn’t have its own setting for accessing a Core Audio or ASIO
device directly, it typically uses the device specified within the Sound control panel in
the operating system software. This sets the device for all system sounds, and any other
device that uses the system device for audio I/O.
Note: To prevent system sounds from being inadvertently routed into Apollo’s
monitor outputs and/or DAW recordings, setting Apollo as the output for system
sounds is generally not recommended when using a DAW.
Mac
In in the Sound panel within System Preferences.app, set the Input and/or Output device
to use “Universal Audio Apollo Thunderbolt” to route system sound to/from Apollo. This
setup will assign system audio to the Apollo’s default channels (1 & 2), which are routed
to Apollo’s left & right monitor outputs.
Apollo selected for system audio output in macOS System Preferences