Personally if it sound quality based buy the best furutech receptacles and wire them into your circuit and if directly into them. Years and years ago I bought a panomax and I could not get rid of it quickly enough. Between myself and a friend we have tried a bunch of them and none of them are any good. Make some things better and some things worse. That is the way they all seem to work the bass is better the top gets bright. Or the tone is better and the mucicality is go e etc etc etc. They all seems to work that way we have tried a great number of them up to about a five thousand dollar price. The furutech receptacles replacement just makes the sound quality go up. Doesn't seem to make anything get worse.
Regards