Do materials alter frequencies and speed?


Does anyone manufacture cables made from premium copper, silver and carbon? Would the combination be additive or muddy?
deckhous
Tou may believe in anything your heart so desires. I doubt electrons care though.
Materials absolutely do alter frequencies and speed. It is a very complex process. I haven't heard of anyone using pure carbon though. Did you mean all 3 together? Copper and silver are used all the time.
Aball, please enlighten us:

How do materials used in cables affect frequencies and speed?

What is speed?

Which materials affect frequencies, the conductor or dielectric or both?

If both, in what measure are such effects produced by one or the other?

Are we dealing here with measured differences in frequency response or subjectively perceived ones?

Thanks.