Setting up Wavelab for use with the EZbus as a USB Audio Interface
After following the EZbus installation instructions, you can set up Wavelab to use the EZbus as your Preferred Playback/Recording Device. To do so, open Wavelab, and go to Options > Preferences. Click the tab labeled Audio Card. Select EZbus as the Playback and Recording device, as shown below:

You can also use the EZbus as your MIDI Device within Wavelab.
To do so, open Wavelab and go to Options > Preferences. Click the
tab label Sync. Select EZbus as the MIDI Input device,
as shown below: