Good outlet for amplifiers

Anyone have all copper receptacles?

@thecarpathian 

It is just the coating that is rhodium in the one described above, the contacts are all copper. You can't have uncoated copper, unless you want to clean the corrosion off weekly. 

Viborg VM02

Hi, @mclinnguy ,

Yes, I know. Was wondering if anyone had them, and thoughts. Rhodium I don’t understand, it’s a lousy conductor. All copper or better yet silver coating seems the way to go. My thought on the all copper is your attaching bare copper wires to it anyway some decades old and they I imagine never get cleaned and polished. Personally I’d go with the silver. Can someone explain to me why rhodium is even in the equation?

Carpathian, here are some copper units. I tested and liked the Furutech FPX-Cu and the Oyaide R-0, but the Oyaide R-0 is better in my mind. The ACME is very good, but silver plated

Furutech does have the FPX-Cu receptacle which is phosphorous copper, because pure copper is too soft to provide strong contact - $63 Cable Company

Acme Audio Labs have silver high purity plated copper - $65 Acme Audio Labs

Oyaide R-0 highly polished beryllium copper (same here, not pure copper because of clamping strength) - $151 Cable Company

Shunyata SR-Z1 high copper content brass - $100 Cable Company

Not sure that is all, but those are the ones I know of

@vthokie83 ,

Thank you! Yes, thinking about it copper is too soft by itself. Perhaps the use of rhodium is because it’s a very hard metal. But there are so many more metals with superior conductivity. Maybe it’s applied in such a thin coat it’s conductivity isn’t so much an issue.