Paul McGowan of PS Audio used to sell his own line of power cables until he used a full loom of top-line Audioquest cords. The performance improved to the point that PS now endorses AQ cables and no longer makes their own. @kingharold You may be having excellent results with your stock cables but that doesn’t mean you might not hear even better results with aftermarket cords. I had aftermarket’s on all of my gear and then I had a Paul Mc type experience with my Shunyata Research NR cables. No going back once I heard my system with them.
one caveat…never use power cables or any other type of aftermarket wires on your system that you can’t afford.