good discussion on power cords

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.  

I just finshed 2 DIY power cords, Pure copper ends with Home Depot 12 gague copper strand wire. AWESOME!!. can be seen in my latest YT upload. 
Type in SEAS Thos.
I made 2, one for the big Jadis, 1 for the 220 V cayin cdp, and have another set of ends comming from china, 2-3 months ship time. 
a  spool of 12 gague strand costs $15/50 feet.
Just really super cord. Feeds the Jadis and cayin all the juice either can drink up.
the basic 50 cent cord that comes with any unit you purchase (I bet Jadis's $100K JA800, comes with,,yep a  Fifty cent power cord, cut any one open on your system, its either 18 or 22,22 gague wire,,,a  few hair thin strands. 
Go ahead, try it, you will see.
Go to youtube type in SEAS Thor, my latest vid will pop up. Beats any power cord on the market. 
Copper wire in my wall, copper ends, copper 12 gague stranded, = pure raw unfiltered 100%  juice.

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


oh yeah I agree, ~~$2K power cord~~~ I mean power is power, 
grant it the 50 cent power cords that come with every amp you purchase (Even Jadis' JA800 @ $100K, I bet has that  stinkin Fifty Cent power cord) cut one open, the strand is either 18 or even 20/222 gague,,= justa  few hair thin strands,, which might be all it takes to juice my Defy7. who knows. But when you see that 70 lb beast,,sure seems to me 18-22 gague just ain;'t  giving the juice.
So I went 12 (10 gague was too thick for the copper ends), Now I am confident the Defy is getting all the juice she wants/needs/cares to drink.
Why strave the amp on power?
DIY power cord is something anyone can make, Very easy mod, in less than 30-45 minutes can be acheived.