$$ power cables have no value, other than nice look / flexibility / Dr feel-good. All high end equipment I am aware of, supplied with the same pwr cables as used in the performance tests. I would love to hear about “blind test” results between $1000 and $5 power cables! Typical house wiring uses tiny wires, having x100 resistance than any power cables of hifi components.
If high freq power noise bothers you, you need LPF or power conditioner. Easy way to fix is to add filter clamp to your cable.