Audiophile Grade Wall Receptacle

I have some Porter Ports here, as well as some Acme Audio Labs Ag Silver Cryo receptacles and one Furutech GTX-D G receptacle.  I suspect the differences are subtle and I don't really have a clear preference.

As to Rhodium vs. Gold vs. Silver plating, I suspect any potential differences may be due to the level of finish on the plating (polishing?) and maybe also how the current is transferred across the boundary.  Maybe the different platings impart a subtle sonic characteristic as some believe they do when used on speaker cable spades, etc.  These platings were mostly used for corrosion resistance in the early days, like the tin coating you can still find on some wires and connectors.  Other than silver, none of the other common plating materials conduct electricity anywhere near as well as copper, although gold comes closest at 76% IACS. 

The elephant in the room: Sometimes there is no clear answer to our questions and/or scientific testing that can prove an occurrence or answer a question. Trust your ears and be your own judge.

Just to end this discussion (for me anyway), I will do my ultimate comparison.  I have purchased 70 feet of Romex 10/2 Simpull wire and ordered Furutech GTX-D(R) Duplex Receptacle, FI-32M(R) Plug and 106-D-NFC Receptacle Cover.  Now I know the 10/2 adds nothing to the party as 12/2 would provide all the current my system will ever need and the 20 amp breaker can draw, but I found Lowes was selling the 10/2 at a cheaper price than Home Depot was asking for 12/2 so I bought the heavier cable.  I will be running the new line out of my mechanical room directly into my garage and up to my listening room.  Meeting all code requirements along the way.  When done I will be able to demo equipment on 15 amp vs 20 amp.  Furutech vs $2 contractor plug, with and without power conditioiner in the loop.  This will take about a week but I will make a full report for anyone interested.  Open to suggestions on musical selections that may provice the best opportunity to hear the difference.  Cheers.

@bigtwin; Sounds like fun. Remember the Furutech GTX-D(R) Duplex is going to take hundreds of hours to burn in and sound consistent.

@lak I've learned that all burn in times must meet two criteria.  First, it must be a minimum of one day past the return period, and second, it must be long enough that you can't remember what your system sounded like before and your ears hve become 100% accustomed to how the system sounds today & confirmation bias has been established.  🤣🤣🤣