Harmonic Technology used to sell bi-cable (magic series) where one was called "woofer" and one was called "tweeter". Same construction materials but different gauges. Hope this helps.
Different types of cable for bi-wire
Any issue with doing high gauge silver cable for the the high frequencies (24 or 26 AWG), while using a low gauge copper cable for the lower frequencies (like a 10 AWG)? I am thinking if they are the same length there might not be an issue here, but wanted to confirm. Was wondering if there could be any sort of timing issue or other issue with the different conduit. Thanks