Which power cords should I look at?

@stereo5 , is the dead quiet in your system a function of the power cables? Is that a good test of one's power supply quality? I also have a tube pre-amp.

@mrdecibel 

Wow. Not sure how to respond here. Let me give it a try because I'm still interested in the answer.

First, I  do not remember that part of the other thread you are talking about regarding the "noise floor". I may have missed it. So I'm not trying to rehash that aspect and I honestly do not know if minimization of the noise floor is the same thing one would hear when the speakers are not being driven.

Second, I did not introduce the placebo question in that thread.

Third, the question I asked in this thread was asked in good faith and I'm still interested in an answer. We may have a difference of opinion but no need to project sinister intent into innocent questions.

Fourth, there isn't any way to respond to me in that thread as I  have left it.

Fifth, you gave me advice in that thread about changing cables and I said I would consider it.

So, in good faith, if you (or anyone else) wish to answer the question I have posed I would be happy to hear it and will not respond back to it in order to prevent any suspicion of naysaying or whatever else that might offend.

@mrdecibel 

If you are talking about me then you got it all wrong. That was a legitimate question the answer to which I would use to help evaluate my system. If it is a loaded question then that aspect of it was completely unknown to me and it was not intended as such.