Do powercords make a difference in sound?

Mrtennis,

"one would expect that as a cable becomes less and less "colored", its performance would become more similar when placed in stereo systems."

How does a cable become less and less colored?

Maybe the stock power cord is the least colored since that is the cord the equipment was voiced with and all aftermarket cords are colored since they are adding or subtracting from the original sound.

Mrtennis,

"there are many ics and ac cords, so it is a bit presumptuous to make such a statement which includes the word "undeniable". obviously, it's your ears and your opinion."

It's your ears and your opinion providing you have a clue. There is one thing I have noticed. When something sounds good everybody knows it.