Cable septic

OP - I am guessing with a Porsche ( does your moniker mean anything ? ) you might not think Consumer Reports knows WHY a sports car exists, let alone what a good one entails...,so for what it’s worth, maybe ask Voxativ ????? You might find they care and can make some recommendations...

I like Audioquest, Nordost, Kimber, Cardas, and for speaker wire only a mother could love Anticables 

@unfairlane Rober has some very fine wire in his system, got a good deal on silver Audioquest, so I would say he is already there....$500 cables aren’t the lunatic fringe to some... great IF one can get them for $100 but let’s all be clear his wire is NOT the free junk that comes in the box....

And $500 cables ARE the lunatic fringe to others....

For power cables at a decent price contact Chris at vh audio.  He also makes IC's or will help you with DIY projects.

To just learn a few things try a copper wire cable and a all silver cable to see if yo can hear a difference.  Then decide what you want your system to sound like.  I do hear differences but I can find bigger improvements else where such as adding an AC filter choke, better resistors and capacitors.  Then you can go form there.  I recently hear the changes that the Audioquest Niagara model 1200 made in two systems.  One was more pronounced that the other.  That may have been a bigger change that any cable I have tried ever made.  You have to experiment and observe and then learn what makes the sound change in this hobby.

Happy Listening.