I wouldn't biwire. It just adds to the complexity of the setup and can't say your going to get any real difference, no more than just halving the resistance of the cable. Your money for the second run of cable is probably better spent buying a single better run of cable if anything. And the money spent on that single run of better cable would probably be better spent on upgrading a component. Yes, I'm from the school that doesn't believe in esoteric cables. That doesn't mean I haven't experienced differences in cables. When I had a little tube amp and upgraded to some "designer" cable I was quite impressed with the results. However, a "real" amplifier will plow through whatever your using like its not even their, so long as the length of the cable isn't extremely long. I guess what I mean by "real" amplifier is well done solid-state designs and some exceptions, so long as the circuit design is not extrememly load sensitive. My Van-Alstine Fet-valve is half a tube and half transistor and I'm just using a single run of Kimber's cheapest cable to my loudspeakers (which are bi-wireable). With that amplifier I can't hear differences in cable. Its up to you. Fifty bucks spent of a set of RPG room acoustic foam would probably give you more performance for your money if you're looking for some type of "tweek" not part of the basic equipment. Good Luck!