In my system different power cords make the system sound different. This is my observation and is not my imagination.
I hypothesize the difference is due to the “skin effect”. Apparently higher frequencies of A/C conduct more readily over a thinner layer at the surface of a conductor, while lower frequencies conduct over a thicker layer from the surface to core. Based on this, the proportion of conductor surface area (high frequency preference) to conductor volume (low frequency preference) will change the frequency dependent conductance of the power cord.
Or something like that.
I hypothesize the difference is due to the “skin effect”. Apparently higher frequencies of A/C conduct more readily over a thinner layer at the surface of a conductor, while lower frequencies conduct over a thicker layer from the surface to core. Based on this, the proportion of conductor surface area (high frequency preference) to conductor volume (low frequency preference) will change the frequency dependent conductance of the power cord.
Or something like that.