Quote Originally Posted by komatias View Post
The Ess will help some but the ground loop will always cause issues.
It will with the ESS which think pulls Gnd from PC like the BOB but not with IP-M which is isolated from PC and pulls Gnd to Mains Earth. It also uses Differential signals with isolated Inputs which is why it's so very good at not being affected by noise.

That said you still need to be 100% sure it is the BOB and not some other cause.?