some simple questions about cables.

I would like to add that there is a synergy between manufactures cables. No disrespect but I have found that mixing brands can effect the sound / resolution of a system. I started with Kimber cables which were great (copper). I introduced Siltech interconnects which was silver /gold. My system suffered and I couldn't figure out why, I had spent good money for what I thought wowuld be a upgrade. Spoke to the local dealer and he impressed upon me the fact that I was using different metals which created a smearing effect. When I replaced all the Kimber with Siltech I regained the clearity and warmth that I was accustomed to. So be careful whether it is interconnects or speaker cables which are different don't mix metallurgy. I try to stay with the same manufacture for all my cables, including digital which is a different kind of interconnect but not mention by any of the responders. Happy listening