Why Power Cables Affect Sound


I just bought a new CD player and was underwhelmed with it compared to my cheaper, lower quality CD player. That’s when it hit me that my cheaper CD player is using an upgraded power cable. When I put an upgraded power cable on my new CD player, the sound was instantly transformed: the treble was tamed, the music was more dynamic and lifelike, and overall more musical. 

This got me thinking as to how in the world a power cable can affect sound. I want to hear all of your ideas. Here’s one of my ideas:

I have heard from many sources that a good power cable is made of multiple gauge conductors from large gauge to small gauge. The electrons in a power cable are like a train with each electron acting as a train car. When a treble note is played, for example, the small gauge wires can react quickly because that “train” has much less mass than a large gauge conductor. If you only had one large gauge conductor, you would need to accelerate a very large train for a small, quick treble note, and this leads to poor dynamics. A similar analogy might be water in a pipe. A small pipe can react much quicker to higher frequencies than a large pipe due to the decreased mass/momentum of the water in the pipe. 

That’s one of my ideas. Now I want to hear your thoughts and have a general discussion of why power cables matter. 

If you don’t think power cables matter at all, please refrain from derailing the conversation with antagonism. There a time and place for that but not in this thread please. 
128x128mkgus
Thanks for sharing your experience @twinterfinder

‘Keeping an open mind goes a long way. Something that “prove it to me” folks should try and find out for themselves 
I agree with the statement " I feel a well shielded power cable is more than adequate" However Geoff would have you strip off that pesky shielding to free the music hidden inside the (directional) cable. 
Mr. Smarty Pants, shielding on power cords doesn’t actually do anything when the rf is coming in on the conductor along with the current. Hel-loo!

The primary psychological phenomenon appears to be that naysayers have psyched themselves out.
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Obviously, the simplest solution is to keep power cords away from cables. Problem solved!
Of course, the real question is, is shielding on power cords per se bad for the sound, all things being equal? Apparently, shielding can affect the Sound when used for speaker cables and interconnects. Why not for power cords?