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

I can only speak for the Cabledyne power cords which are worth far more, IMO. Cabledyne has some impressive reviews and I especially like their vendor references, you know what goes into their cables. Supposedly one of the founders is a retired engineer who used to work for Belden and their design knowledge is apparent in their Blog. I also like the fact that you can choose copper or silver wire.

Darwin does not indicate the purity and process of their silver wire. Not as much info on their site but I am sure they build a nice cable. Best to try both products in your system and decide since this is really what matters.

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."

No need to have a pissing war amongst one's favorite brand of cables. Every cable maker has their theories and most claim they have the "answer." What works in your system and YMMV. :)