Hey guys - ease UP a bit on the critique! I said BASIC RULE OF THUMB it's best not to mix silver and copper conductors in the same system. Of course there are exceptions - I use Siltech (silver and gold) along with Nirvana interconnects and PAD speaker cables,in my own system BUT - I have the luxury of being able to try virtually anything that I want to whenever I want to. How many audiophiles can do that? That's why this is a guideline (which is what a basic rule of thumb is) and not a rule.
Sean - transfer speed of an analog audio cable has to do with ALL of the factors in the cable- overall design, conductor materials( and size, shape, and number of conductors, etc), dielectic material and location of same relative to conductors. Transfer speed is the rate at which a signal in the audio frequency domain travels from one end to another end of a cable ( or some could argue, between two components). I was trying to keeping my comments more on the general vein for those people sincerely interested in getting good, useful, practical, EXPERIENCED advice on this subject.