Bob, I see the unenlightened out in full force telling you that power cables are a waste of money and to go eat ice cream!
Power cables do make a difference and although I have not heard them, Audio Envy get great reviews. Consider a used cable to get something better for the same price. If you can DIY then that's best value of all. I have Oyaide Black Mamba V2 which is stunning and feel it can compete with some big $$$ cables.
https://www.ebay.co.uk/p/20028465790?iid=142383656227&chn=ps&norover=1&mkevt=1&mkrid...
If you shop around you can find cheaper than this.
I bought a 3M piece and cut in half to make 2 cables. I used different IEC plugs on the amplifier end and found that they sounded different. So using the same piece of cable I got different results. Not only do the cables sound different, so do the connectors.
Anybody telling you otherwise has either not tried a good cable, has a poorly resolving system, as in bad or has substandard hearing.
@cakyol, which category do you fit?