From my personal experience I have noticed differences in the sound from different IC cables, Coax, speaker cables, and even Power Cords. In fact the weekend before last, I was listening to some music on a friend's system. I had some of my expensive Wireworld Platinum Eclipse Balanced IC cables installed into the system. We changed to some of our much less expensive BalanceIC TimePortal cables made by Kevin (VALAB) in Taiwan. Much to our surprise we heard immediate differences in the sound and much preferred the much less expensive cables. From experience, I have also found that cables do improve or "mature" in performance with usage and rely heavily on an Audiodharma Cable Cooker to prepare the cables for their optimum performance. And yes, the cables do sound different after "cooking".
Rich
Rich