This applies to the Audiohub 2x4

If you are running an Audiohub 2x4, or another Novation or Focusrite USB 2.0 Interface, on a Mac (no driver install needed) and it does not appear in the System Preferences at all you probably have the Novation USB Driver 2.3 installed on your computer.

This was a problem in the Novation USB Driver 2.3 that was fixed in the 2.5 release.

Please either remove the Novation Driver or update it to the latest version here.

MAC - Novation USB Driver-2.7.dmg

If you have removed or updated your Novation Driver and still have any trouble with your interface in class compliant mode please contact us.