Hi John

John, any time issue of power cords comes up and if we get any benefits by changing stock cords on audio components, you always bring up the reference ground and loop issue problem.

You said that Most, if not all, of the power cords made do not worry about that [loop issue]...just current delivery to the equipment. Could you explain that issue in more detail as regard to PCs?
You also gave an example such as when we hear a thump in powered subwoofer when something electrical turns on or off. I also have this problem:when turning off my fluorescent light, I always get a loud thump from the Sub.

So my question is how do we address ground problem associated with AUDIO (not industrial equipment), by changing of power cord-such as Sub thumping when something is turned off (what causes this anyway)?
I still don't see the relation between stock power cords and ground problem, and how changing power cord can address that issue.

And please don't draw any more diagrams. The last one you drew, didn't make any sense

Also bringing up this link as you discussed this problem in detail:
http://www.audioasylum.com/audio/cab...ges/94314.html