Audiophile Grade Wall Receptacle

Someone please explain these Furutech claims to me.  All the wall plug is doing is passing electricity from the main power cable to the plug on my amp or power conditioner.  That power than travels through various filters in my equipment, is transformed and eventually a very small amount goes into my speakers.  How, within all the known laws of physics, can the wall plug alter the sound coming from my speakers.  Really?  The three different coatings on the plug are going to give me three different sounds from my system?  Explain this to me in a way that is understandable.  Thank you.

Choosing Rhodium versus Gold Plating

Japanese audio commentator, Masamitsu Fukuda says the following on the different plating options:

“The new Rhodium plating offers high resolution, transparent and precise sound. The high signal-to-noise ratio delivers greater contrasts across the entire frequency spectrum along with tight and precise bass. Rhodium especially excels in the high frequencies which are detailed and clear. Overall rhodium yields a super responsive, delicate, expressive and neutral sound…”

“Gold plating is ideal for enthusiasts who prefer a flowing, somewhat warm and softer sound. With a slightly thicker layer of gold plating than before the sound is a touch more precise allowing a stable soundstage and a smoother tonal balance. With better response and dynamics the new cable yields a detailed, powerful bass and an overall expressive sound….”

“The unplated copper reveals none of the characteristics of the rhodium- or gold-plated versions. It is full of vitality and energy with powerful bass and midrange texture so some people will find this model very interesting indeed. There is a slight tendency towards brightness in the midrange but the clarity yields a very special vibrancy to the sound. It sounds very attractive with full-range dynamic music like jazz…”

Well failed tweeks of other types should have no bearing on how you approach AC outlets. I cant comment on Fukuda-sans take on different plating, but I will say that I have always favored copper on copper. Like metals so on. 

I think that the real advantage of better plating may be in the smoothness and lack of pits in the metal itself which would be accomplished by polishing. The grip of the socket as well and the material with which the socket is made. The influence of vibration and resonance on electrical items is well known.  

I wouldnt expect you to hear a difference as it appears you already know what the results of your test will be. Oh and just replacing your stock outlet with a Hubbell I dont think will give you much of an improvement. Going from a stock outlet to a Furutech, Oyaide or Cruze First might. Now if you hear a difference or not comes down to many things not even remotely related to basics like hearing acuity and predisposition. 

@boxcarman. , OP

I was surprised at the improvement when I put Shunyata SR-Z1 outlets in to replace the standard home wall outlets. Clearer and fuller sound. Maybe because they grip better or use better materials, but either way I'm happy with them. 

My gut feeling is no one would be able to hear the difference between a $3 standard house outlet and a $300 audiophile plug.  Just saying......"bigtwin"

If you had read my 1st post you would have learned that I heard a difference when testing 4 different plugs from a low of $25 to a middle price of $150 , aural memory is short so to test 4 outlets they were placed in a 4 gang box , so after the amp was warmed up for 1/2 hour i would play a song , turn the amp off and plug into another outlet and repeat after testing all 4 outlets I tried a different song and repeated , this was done along with a professional guitar player whose hearing is way better than mine and we both could hear differences . 

We both use AudioQuest , that's not to say that Furutech or Oyaide aren't better but we weren't out ot test outlets , we just used what we had around , the PS Audio now sends Ac to my TV .

A firm contact is important but the purity of the copper , the platings also make a difference , one you can hear . 

@vair68robert ​@audition__audio   What I'm asking for is some hard science to explain how an outlet, placed before the power conditioner, phono preamp, preamp, amp and speaker can have any impact on the sound.  All of the equipment has filters to scrub out noise and interference.  I'm not aware that electricity has a tonal component?  The idea that gold plating vs rodium plating could actually change the sound coming from a speaker is just a little hard for me to wrap my mind around.  And it's not that I have already made up my mind and therefore would not hear the difference, as audition_audio suggests, since the improvment will be so undeniable that I would not be able to miss it?