Are manufacturer AC cables good enough?

"Double-insulated" simply means anything the user would be likely to touch is made of non-conductive material. In 120V code-compliant electrical systems, the neutral conductor is also connected to ground, and thus, to the circuit breaker.

In (most) single-ended audio circuits, if (especially) the input signal’s ground, is disconnected from the chassis (or internal grounding point, if the chassis is non-conductive) then the signal is lost …

Wow! I thought that the Mountain  bike forms were out of hand! You guys are much more hard-core.

turnbowm,

"Equipment that is double-insulated does NOT require a connection between chassis and earth ground. In such cases, a 2-pronged power cord is perfectly acceptable."

I thought it clarified it to me, it seemed logical and simple. Reading rest of the repsonses, I got lost.

Still, your explanation reminded me of an icon that my portable cassette player had. Two squares, smaller inside the bigger one, which was to imply it was double insulated. Having disassembled that mean machine many times, I do not think it was really "double-insulated", but it might have been constructed in some way that it was not easy to electrocute self. Unless opening it, of course.

https://commons.wikimedia.org/wiki/File:Double_insulation_symbol.svg

During the transition, many folks received mild electric shocks ;~)

>>>>One can’t help wondering if that might help curtail the anger and whining here?

Nothing helps here.

"Wow! I thought that the Mountain bike forms were out of hand!"

There are mountain bike forums? Shouldn’t they be out there on the bike, and not at home at the computer? Fakers!

This "hobby" is for those who gave up on doing anything strenuous. It gives them an excuse to sit, do nothing, and try to outsmart a person they have never seen on a topic that means nothing to anyone. Which really is about how to reproduce the work someone else did without doing it yourself and often doing it better than the person who actually produced it does at her/his own home.