What was the first power cable that you noticed a difference in the sound?

@pindac  I have read the manufacturing process for PC Triple C Wire and I'm lost as to the benefit.  If I understand it correctly, they are repeatedly working the copper to end up with all the crystals aligned.  And yet, with the OCC continuous casting process, you supposedly end up with a cable comprised of one single crystal.  Zero boundaries for the power/signal to need to navigate.  No need to compress it to remove oxygen as it's already oxygen free.  Kind of sounds like they needed to come up with a process to convince us to buy new cables?  IMHO  As an aside to this, I run Hegel amps, and questioned them directly on the best power cable to use.  They suggested using anything other than the stock cable they provided was a waste of money.  For what it's worth.  

@carlsbad2  I find your first suggestion very interesting.  If I understand you correctly,  there are amp designs that manage power in such a way as to make power cables a non issue, assuming of course you are using any decent cables that can carry the required current in the first place.  My last three amps have all been Hegel products.  H390 to the H590 and currently a pair of H30s.  I have heard zero difference it sound regardless of the PC I've tried.  Was using Furutech DPS-4.1 and currently using Puritan Ultimate.  Throw the stock cable that Hegel supplied into the mix and the sound is the same.  Will I hear an improvement if I spend thousands on the PC?  

@pureclarity  One of the other contributors to this thread has stated the exact opposite to your contention that front end equipment is where better PC's  make the biggest difference.   Got to love this forum for clarity and consensus, 🤣

@lcherepkai  I agree with your final comment "why don't you simply experiment, and listen", however I feel much of your post is apples/oranges re the OP's question.  The majority of your post talks about "signals" and how they are affected by various cables.  I think of a signal as carrying information.  The signal from my DAC to my Pre may very well be enhanced by the choice of cable, but the question about PC's is completely different?  Now we are talking about the pure transmission of electricity, prior to interacting with any signals, or for that matter, any of the alterations to that electricity once it enters the amp.  Don't mean to nit pick but...... I think the two things are separate discussions.  IMHO  Cheers.

@ditusa Sounds interesting.  The best PC is no PC.  So did you open up the amp cases and hard-wire directly from the wall box to the amp internally, or did you skip the wall box completely and run a continuous cable from you main panel directly into each amp?  Soldered connections?  And why did you choose to use Metal Clad cable within the walls.  I can't find anything that suggests a benefit to using MC cable inside residential walls.  I'm building a new dedicated listening room in the spring and am open to any ideas that can be incorporated at the time of construction.   Cheers.

What I find really interesting is the number of times the subject of power cables comes up, and the response the subject seems to get every time.  This post is already on page 4.  And before someone points out that "you're reading it", yes I am because I'm always looking to find something new, but in the case of PCs it looks like there really is no new ground to cover.  Still, this is one subject that just gains traction every time the same question is raised.  Not sure what that says about us?  (me included) .