Opinions on differing power cable for amp and preamp

Thank you @mwh777 ! Appreciate you following up and clarifying, and for the added detail. And I so know the market has been dry lately for Transparent cords, I've been hunting religiously, LOL! But I've only been hunting here and Ebay. I'll expand my search...Another great insight on overshooting on the preamp. I know Rotel isn't exactly high end, but back in the day I had the RMB1095 driving my Dynaudio Audience and even though I love my current setup (Evoke/Simaudio) there was just something truly magical about that system that I still miss :(. But I'm not sure this particular preamp would justify that kind of $ upgrade for the power cable. 

But a used Super would certainly be nice if I could find one :)

Its kind of funny, some people seem to live in a strange beyond words universe where things like power cords know to sound different depending on what they are plugged into. Over here in my universe the power cord that sounds one way plugged into the amp sounds..... exact same when plugged into the phono stage, CDP, turntable..... what a surprise. 

If you find one that sounds really good, beautiful balance, not too much or too little of any one thing, then guess what? More of them will be better. If you have one that is pretty good, especially with powerful bass but not so much top end extension then guess what? More of it will be too much of a "good thing". Which brand it is, the whole concept of "loom" is nothing more than jargon some guys like to throw around to impress other guys. 

It works, more often than not, so they keep on doing it.

I don't see how someones experience with a power cord on THEIR component can advise someone of how it will sound on someone else's.
Case in point. I bought a power cord from Verastarr. I got it directly from Mike so I know It is genuine.
I installed it on my phono pre and poof, the bass disappeared. I couldn't believe what I heard.
I then I installed it on my DAC and it sounded normal.
Go figure. From that day forward I realized the effect of cables.
My hypothesis is that cables don't make gear sound better. Some cables that are not on par with the component will cause it to not sound as it should.