The Furutech is the best built with the biggest and best contact area there for giving the best sound.Its not cheap put its ell worth it in a high resolution system as I have.
I installed two PS Audio "AV Grade" receptacles when I built my dedicated audio room. I have no idea if they do anything special for the sound as I've never listened to anything else in that room. To be sure, they do grab the plugs tightly. It doesn't hurt that they are finished in a masculine no-nonsense gray.
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