Can POWER CORDS really make that big a difference?

Except in some very pathologic conditions, you won't hear a difference between stock and kilobuck power cords, or any PC inbetween for that matter. That's if you listen just using your ears, however. People can "hear" all sorts of amazing things when they listen with their eyes and wallets. Not completely a bad thing if it enhances your overall musical experience, but I'd rather put my money where it affects the sound.

Hearhere please clarify: Does the pathological condition you mention refer to:
A: The system ?
B: The listener ?

I humbly suggest, that it refers to both, if you don't hear any difference in powercables at all. Cheers,

hehe, here somes the thread's death dive.
Hearhere, if it all sounds the same, consider yourself lucky.
One less thing you have to worry about.

Well, time for my medication...

KP

Would you be willing to specify which commercial power cords you have auditioned and under what circumstances (specifics as to the system in which you tried them). The web is replete with hundreds, if not thousands, of comments like yours - usually accompanied by the same condescending and arrogant attitude that characterizes your comment. I have yet to see one person who advocates your position who is willing to provide such information.

It seems over the years of spending much time and money on very expensive accessories such as exotic power cords and cabling, you hear what you want, or hope to hear, to justify the decisions made. This is not to say lamp cord wire is adequate on a high end systems, but how we justify big dollar items spent and convince others to follow along, so we feel better. Hey,why let someone enjoy chocolate, when fudge is better.