I had a pair of T2 biwire between an ATI 1502 and Polk Audio LS90. I personally liked the improvement over standard wire. Wider soundstage, more transparent, and cleaner (less grit). I personally liked the way they sounded (which is the only thing that matters). Would I buy them again? Only if I found them cheap. Otherwise, I'd try something else - There are so many other cables to try ... ZU, kimber, etc.