Guys, can I suggest that we keep it simple. I.e. use the minimum number of boxes, cables etc. Ideally stick to the same source, amp, speakers and if we can, use no more than 2 sets of I/Cs, mains and speaker cables. After all, we only want to prove that there are differences between cables, not that a is better than b but not c etc.

If we pick 2 sets of cables and switch between them, say 10 times and the listeners can consistently identify cable a from b then later on perhaps, if time allows, look into "the laws of demishing returns" by comparing more cables (cheap and expensive) to see up to which point they make a difference, if that tickles your fancy.

How does that sound? (forgive the pun ).