good discussion on power cords

But if someone else put them in your system, would they sound like they remembered, or if they didn't tell you, would you notice at all?

I am not surprised we don't have public measurements. I wouldn't be surprised by a small reduction in noise floor (which would likely only matter if you already have a really low noise floor source), perhaps even a small reduction in IM/THD with the right set of equipment ... but the question is, when do the diminishing returns reach 0 (at what price point), and are there less expensive ways to accomplish the same thing?

"First of all, power cords do not transmit audio signal - unlike speaker cables that transmitting audio signal."
"The power cord soul purpose is to transfer the power from the wall outlet to the equipment".
"How is the last few feet of cable can really make a difference?"
A few quotes from the video that are completely misleading.

The late Charles Hanson once said that an amp is basically a modulator of the power supply.

He also has another video that says expensive speaker cables do not make any difference

That does not make what the late Charles Hanson said an accurate analogy, but I think we can state pretty unequivocally that the goal of the power supply is to isolate the output (audio) from the input as best as possible. One thing you don't want to do it "modulate" the AC into the audio. Technically the diodes in the power supply perform a modulation function on the incoming AC which is why you get DC.

Not to offend, but IMO - If you have a $10K amp. properly matched with your pre amp and speakers and it takes a $2K power cord to make it sound good, - I'd ditch that sucker and buy an amp with a decent power supply and save yourself a couple of grand......Jim

but I think we can state pretty unequivocally that the goal of the power supply is to isolate the output (audio) from the input as best as possible.

I would disagree with that statement.  There is really no "isolation".  They are all related.

Technically the diodes in the power supply perform a modulation function on the incoming AC which is why you get DC.

I think that is called "rectificatioin", not "modulation".  

With regard to the "Audioholics" vid, I actually agree with most of what he said on his other videos, but he probably is wrong with respect to power cable.