I recently upgraded from Kimber KS-1120 to KS-1130 (the same interconnect with high-purity silver instead of high purity copper). I wasn't blown away by the difference, but it does seem to be better. The sound is a little more finely "etched" now. I'm not sure whether there is actually more detail, or a slightly more distinct presentation of it. I can't say absolutely that the difference is worth it at retail prices, but I got a good price on a used pair and have no regrets.
