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

@hickamore It definitely made a positive improvement compared to using only one power bar for my setup. I had purchased the Chang Lightspeed with the intent to upgrade from my original Furman. I tried bringing everything over to my newly acquired power bar, which did make a nice difference. But then I’d remembered other threads where this was mentioned and put just my digital components on the Furman. Everything was even better. 

My first experience with upgraded AC cables was with the Synergistic AC Master Couplers in the nineties.

I use a full SR loom in my $100k system, many purchased used as others upgrade. They continue to innovate. I'm extremely happy with their offerings, especially at the more entry level.

Very high value if you have a sufficiently resolving system...

Some disappointment expressed here with Pangea power cables.  I have used and built a lot of PCs.  The best low cost bargain I have found recently in an assembled cable is the Audiomeca P-90 OCC power cord single crystal copper hifi power cable.  You can get it for a little over $100 from Aliexpress.  China, I know, but it is super well made and it’s performance beats some of the cables I’ve built with parts costing five times that much. Not much to lose in trying it.

kn

I have no dispute with the methods used by some to gather their info and conclude their investigations. If one chooses the route of discussions being had, or reading about PC Triple C Wire used as the Signal Path in a Cable, that is their choice.

What I do have at my end which is at least one stage further on as an investigation is the experiencing the Wire in use in my Home System, with the outcome being that I have exchanged nearly all Cables and the Wire PC Triple C is now the most common Wire in use, where it has superseded the use of OCC Copper and Silver. 

The PC Triple C Wire is not the chosen Wire for the Digital Source, after further investigations and extending this to being an experience. The Cable used has   D.U.C.C as the Signal Wire used between CDT>DAC and is the umbilical type I regularly offer as a suggestion to others.

Additionally, all Cables I am using are not assessed from my own experiences, as a social individual within HiFi, there are Demo's and Loans made of owned Cables to be used in other systems.

I have also received feedback from adopters of PC Triple C Wire within this Forum Threads, where it has been made known something was present that was an added attraction over the previously used OCC Wire.

I am yet to be confronted with anybody suggesting the use of PC Triple C in place of OCC has been a experience where some sort of betterment has not been perceived, when the PC Triple C Wire has been used for the Signal Path or Power Supply.     

As stated before, I attempt to step around adopting any attitudes shown from myself, where the forming a evaluation without a direct experience is the intention. I avoid if possible any attitude that can relate to the following:   

  "There is a principle which is a bar against all information, which is proof against all arguments and which can not fail to keep a man in everlasting ignorance-that principle is contempt prior to investigation."