I wasn't suggesting it wasn't explicable, but it shows how hard you have to work to get a significant change. Twice as much LCR in an interconnect gives you 0.05dB dulling at 10k. Roughly.

Repeating the exercise with a different 1m interconnect, silver, not coax, about as different as reasonably possible, shows no difference on the graph. More interestingly two runs with the same cable done some hours apart are more different. So given reasonable input and output impedances the two 1m interconnects are 'electrically equivalent'. But most 'believers' would suggest they would sound different.

That's the challenge.

Paul