Doug himself makes these cables over at HTguide.com. I have ordered 2 sets of his Kingcats RCA (the picture is showing his Silvercat series). First thing you will notice is how well built the product is, it has a very good solid feel. Much better that of other cables from Kimber or Transparent in its league. For the sound, the most noticeable is separation, air, and soundstage. The highs are lifted to give better clarity but not in anyway distasteful. I have these running on B&W 705, so if anyone knows, these can sound harsh on the highs, but with these cables, it helps them sound more airy and smooth, and less etched. To me, these are big benefits to my solid state amp which doesn't have tube like features. Some would argue that cables have no effect whatsoever on sound, but I believe a well built cable do in fact have a better effect overall. LIke arguing a CD player used as a transport through a DAC which I agree does make a difference in sonics.

The LOK connectors are also a very nice feature, which you can twist to loosen or tighten. Just a quick hand tighten is good enough to make a good connection. I had to get a set of pliers to help twist them open because the first time I had them on too tight and I forget which way it was to loosen them. So if you do get a set, you can just slightly tighten it and it will go a long way.

If you have any doubts about the silver conductor being less beneficial in your setup, his silvercat series also have many raved reviews. Doug himself is easy to work with, you can tell him what you like and about your setup, and he'll tell you his recommendation. Very honest and will put these cables through a cable cooker to break them in for you. You can definitely hear more about his cables in his forums on htguide, or simply just check out the forums, especially if you are a fan of B&W or Classe.