You didn’t seem to read my last post or several I have made before.
I have always said there is noise on mains power supply. I have always said there are better ways to remove noise than a power cable. I have always said the most efficient way to do it is in the power supply that actual delivers volts and current to the amplifiers etc.

Please do check back. I haven’t shifted any goal posts.

ROON Rock on an NUC across the systems
Sitting room: 218, DSP7200SE
Study: 218, Quad 303, Spendor BC1
Bedroom: Musical Fidelity A3CR, Chartwell LS3/5a
Various Sonos boxes in bathroom and spare rooms