Darwin silver IC's or Cabledyne silver IC's?

Not true Nonoise..the Xhadow connector sold by Cabledyne are solid copper plated with silver.

Hmmm, yes it is:
http://audiometallurgy.com/xhadow-precision-rca-plug-small.html

The barrel assembly and rear lock nut are solid aluminum and the "contact" inserted into it is silver plated copper.

All the best,
Nonoise

The contact surface is all that matter's which is silver and copper. A very good quality connector.

I will chime in. Contacted Ed at Cabledyne for some insight:

"Xhadows RCAs have anodized aluminum barrels and the main body including the tip is silver-plated OFC solid machined copper. All signal connections are solderless in the main body, not the cover."

"Aluminum is non-magnetic and serves only as a cover/shield for the main body. All plastic coverings including shrink wrap are far worse for sonics."

TheXhadow has a outer and inner barrel. The outer barrel sleeve is aluminum. The inner barrel is solid copper plated with silver.