OP here. I did not have a component other than 2 CD players with balanced outs to break-in the cables otherwise I would have used my tuner. I left the preamp off during most of the burn-in but occasionally listened to music I was very familiar with. The cable changed over the course of 100+ hours and as it became more listenable I continued the burn-in by playing CDs and listening to music. I can no longer detect changes in the sound therefore I feel I have a pretty good idea about the character of the cables in the context of my system and set-up. This thread wasn't intended to be a review but I will say that the Signal silver resolution cables do some things extremely well and overall, for the money, I think they are a bargain. I thank all those who posted above for a very interesting discussion.