Have been down the power cord rabbit hole... not like some on here but have had a few from PS Audio & Audioquest. On a buddies recommendation I bought a couple of Audience, "Power Chords" and have never looked back. Really only tried to talk myself into believing the others made a noticeable difference. The Audience Chords for some reason really sounded different and improved my system in a positive way. Bought them 15yrs ago and they weren't cheap but, if you can come across one or more of these in the used market I strongly recommend them. Just my opinion and everybody has their own favorites, but these work famously for me.
"Power Cords-More Recent"
Have a two old PS Audio power cords in my stereo system that I purchased used in 1999 when I lived in Dublin Ohio (don't remember the model) for about $400 each. One is connected from my CD player directly to a Panamax 6 Protection Path, and the other is connected from my integrated Amp directly to a Panamax AC 5510 AC Regenerator. My ACRegenerator is connected to the Panamax 6 with an MIT Z Cord II power cord which is plugged into the wall. My question is does anyone know whether current power cords are significantly improved in sound quality to justify replacing my current power cords with new ones? I don't intend to break the bank so $400 each is as much as I want to spend. I am using Kimber speaker cables, digital and interconnects throughout my system so in addition to Kimber I plan to look at power cords from Audio quest, Morrow and Wireworld. Also, Should I just connect both power cables into the ACRegenerator and stop using the Panamax 6? Your thoughts please.