09-07-11: Tbg
Rwwear, no one owes you proof. I doubt seriously if many audiophiles avoid trying different power cords because several people, imbued with the "laws of EE," claim they could make no difference.
let me give you a hypothetical: a person goes to an audio store, spends $50,000 to buy a power amplifier and later concludes: "i'll gladly spend another $2,500 to get a power cord that will make my amplifier sound even better!" i would think that most people hearing that hypothetical would conclude that the buyer was a fool, one who maybe had a bit too much money on his hands. you would think if the buyer discovered the undeniable sonic benefits of this alternative cable, that he would go back to the maker of the amplifier and angrily demand to know why they sold a $50,000 amplifier with a sub-standard power cord.
to bring the discussion to the present discussion; if you really are so convinced of the putative benefits of power cords, then you and the rest of the "believers" in this stuff, should be calling the makers of high end audio equipment to account for shipping sub-standard products at super-standard prices.
of course, if you go to the makers with these kinds of allegations, you're going to have to substantiate them, but i am not expecting you, or anyone in the "audiophile reviewer" community to initiate such a line of inquiry. the fact that there has been no such inquiry points to reasons to be suspicious of the claims of "dramatic" sonic benefits based on cable/cord selection. let's face it, cable is probably the most lucrative product line in the "audio tweaks" product category. and the thing is, when people are spending tens of thousands of dollars (or more) on audio systems, its easy to drop a few hundred (or thousand) bucks more on "tweaks" because comparatively speaking, it looks like a relatively small amount of money.