Generally wise/unwise to mix metals in AC plugs?

Just got a pc with gold plated plugs on both ends and the effect is to soften and merge contours -- "voices" sound like they're coming through a soft cotton scrim. Used on my dac. It's great for the many lo-fi historical opera recordings I listen to, but not for most everything else. Gold seems to take an edge off and to accentuate note decay. I like that. But double- gold is for normal purposes too much of a good thing.

So... maybe replace the male end with copper? I wonder what gold and silver would do?

Elizabeth.. wow good point. It is amazing...

It's not so hard for music as structure to get through the labyrinth of elements -- even the tinny little radio I had as a kid in the 50's did that -- what's so amazing is that such a fully embodied verisimilitude of reality can do so. We have come a long way, but I have yet to hear a system that sounds like what I hear in the middle of an orchestra. That's ineffable. And it always will be, which is only right.

what's so amazing is that such a fully embodied verisimilitude of reality can do so

Now that's a mouthful!!