Not being a radio engineer, I dare to suggest that the cable can be: resistance, capacitor, antenna and inductance.
The resistance will increase if the cable is too thin or too long. The resistance limits the high frequencies. But such resistance that the cable has can lower high frequencies in the range (just my unreasonable and fantasy assumption) of gigahertz or megahertz, which is far beyond the audible range and the capabilities of sound reproducing equipment. You just need to use a cable with a sufficient cross section.
The capacitor limits low frequencies. But it is difficult to imagine such conditions for the cable to show the properties of a capacitor to such an extent that it can be measured in any way.
As the antenna is longer than the cable, there is more interference, but this is perfectly canceled with the help of shielding.
As induction ... mm ... it can be at the inputs and outputs of very cheap sound reproduction devices created by crooked engineers, when connecting a cable, you can catch any inductance effects, which apparently can be manifested in the form of feedback and create some kind of phase effects. xs. May be. It may appear, but most likely at extremely low levels. But in normal equipment, in correct circuits, this is excluded. I don't know this, but I think so. Therefore, I consider a copper cable for three cents of sufficient thickness to be the ideal choice.
To pay more means for me to pay for the impudence of sellers.
