Help selecting a power cord.


All my gear has the factory supplied power cords  I’m ready to try 1 aftermarket power cable as a test.  So what brand power cable should it be and what device gets it first?  Tube pre?  Tube main?  D/A?  CD transport?  Roon Nucleus?  Subs?  GE Trefs?? Turntable? Oppo 103?   Which piece of my gear should be most affected by the improved power cord??  I look forward to the responses and will likely choose the cord that has the most recommendations.
128x128fastninja12
@pauly 

I'm happy with Pangea. The high end cords didn't sound any better (not sure of the brand).  I sold them for shipping cost to get them out of the house quickly.
@bigby 

LOL. I roll cables like I roll tubes. Ditto for capacitors. It's not like I'm unhappy with my sound, but I cannot help myself trying out something new. I think if I ever stumble on the "perfect sound" it will ruin the hobby for me!

I guess even in a rather exclusive group such as audiophiles, there are a wide range of different personalities with wildly differing goals and opinions. 

Anyway, I'm glad you found your sweet spot ... and I'm glad I haven't found mine. 

Regards
@pauly 

Thank you for your comments.  I guess I should have sent my old cords to you to try in your system.
If you haven’t changed out spec (cheap) grade wall receptacles and dedicated circuits you may not hear much of a difference with aftermarket power cables. Start there first. Hospital grade Hubbell receptacles are a good place to start. I use AQ NRG Edison outlet/plates.
Tried and owned several brands over the years, AQ, Kimber, Shunyata, Nordost, Supra and Tributaries and for me I landed with WyWires. All the others were and are very good but I just prefer the openness and lack of drawing attention or very neutral cables and that’s what WyWires deliver.

For large power amps definitely stay with a heavier gauge (HC high current) cable and for digital stay shielded for noise. On most cables it’s the quality of the plugs that make most the difference, so if you are handy build your own but don’t go cheap on the plugs. VH Audio is a great source for parts.