No, when C.A.B M is connected with a different cable (that from PS4) w/o isolator it still has exactly the same noise.
It is ADuM4160 isolator that does the trick.
Ok, here is my update.
I finally managed to solve USB noise problem (presumably USB ground loop issue).
First I tried iDefender3.0 External USB Ground Loop Eliminator ($50.00) with clean 5v power injection which greatly improved audible noise but did not eliminate it.
==> Did not work for me...
Hi guillaume_pille,
Thank you for your quick response!
The MacBook Pro (2014) in question is using three-pronged AC cord which is supposed to provide ground through magSafe according to apple
https://support.apple.com/en-us/HT203207
Unfortunately both of the interfaces I have at the moment...
Dear Two Notes engineers,
I've recently got C.A.B M and find it simply amazing!
However, I have an issue that substantially limits its usability when used for home recording.
Here is the thing: TorpedoRemote Desktop (MAC in my case) is amazingly user friendly way to control the unit. However...