First off, some of this advice is based upon the recommendations of a friend who has had all three of the aforementioned cables. (I have owned the Cardas Golden Reference and the Audience Au24 as well.)
The Kimber Select is a good cable, but not quite in the class of the other two. (My friend was using some of these, but as we all do eventually, he got better cables, he continued to move them down the priority chain, until finally after several years of use, he sold them just last year.
The Cardas Golden Reference is a very good cable. It is slightly warm, which is not a bad thing if you are running all solid state equipment, and/or want a bit of warmth to take the edge off of a cdp digital output. I just replaced this cable with the Nordost Quatro Fil, not because I was dissatified, but I needed additional length and figured it would be a good time to try out something new. FYI, I like the Quatro Fil, as it is very detailed, but not as nicely warm as the G.R.)
The Audience Au24 is also a very good cable. It is very neutral. (I am using these as both I.C. and speaker cables.) It is also a very good speaker cable, IMHO. (My friend was using this too for speaker cables, until he went with the Nordost Valhalla. Not much difference between the two in my opinion, based upon a quick listen to my friend's sytem before and after the switch.)
My two cents worth. Good Luck in your search.
