Reasonable RCA Connectors?

None of the conductors on KLEI RCAs are solid silver.

https://forum.audiogon.com/discussions/kle-innovations-silver-harmonyrca-s-not-silver-eh

From the distributor - Parts Connextion

Copper Harmony - ”Copper" Harmony Phono RCA Plug (Hard Silver-Plated - both Ground & Signal)”

“Silver" Harmony Phono RCA Plug (Pure Silver Ground - Silver-Plated Copper Signal)

”Pure" Harmony Phono RCA Plug (Pure Silver Ground & Signal)”

Absolute" Harmony Phono RCA Plug Highest Grade - Pure Silver on both Ground and Signal” 

The mystery continues. PC uses quotes in the description suggesting it came from the manufacturer at some point.  

@grannyring - Parts Connecxion is one of the distributors that continue to post mis-information about KLEI products on their site

KLEI has asked them (and others) to correct their information many times, but for some reason they will not comply

@Maxima95 is indeed correct - they are all silver coated copper.

The "magic" is in the design of the pins and the thickness of the silver coating and purity of both silver and copper used on both the centre pin and the neutral.

That "formula" is a closely guarded KLEI secret. 

The fact that they are silver coated does not make them any LESS special. 

I have reviewed their four original Harmony RCA's at length, spending dozens of hours evaluating the performance of each plug as it compares to the next in the lineup, and found each model to provide progressively better sound quality, culminating in the Absolute Harmony - their flagship model.  

I use the Absolute Harmony on all of my cables - whether Analogue or SPDIF cables and they are the best I have used to date.

The link posted above goes into great detail about various aspects of these RCA's

Bottom line - they are exceptional RCA's

Regards - Steve

I use them all the time in my cable company sales.  I also use the bananas all the time in my designs and builds. . Big customer for them. Bottom line is they sound great even if there is confusion.  They sound the closest to bare wire I have heard to date. 

I have Xhadow RCA connectors, Switchcraft RCA connectors and Duelund 16ga tinned copper cable.
So I did fast comparison between  Xhadow and  Switchcraft RCA  connectors.
Xhadow has more extended, detailed and smooth high frequencies. 
Xhadow has more bass. IMHO the mid-bass is a little bit bloated.
 The mid-range sound dissembled, because  Xhadow emphases high and low frequencies.
Switchcraft RCA connectors sound not as clean, the bass a little bit lightweight. But mid-range has much more rich tone, more dilates and sound in general more natural and musical.
Despite a huge price difference I prefer sound of  Switchcraft  RCA  connectors over  Xhadow. Yes  Switchcraft RCA  connectors are not perfect but in my test they sound "tuned" more right compared to  Xhadow.