just try some cheap zip cord wire for a bi-wire test with your existing cables. If it does sound better, keep looking. In my case (magnepan 3.5R) it was obvious that bi-wiring was better, even with $5 wires for hi/mid added to some $400 wires for the low run. I would assume that if it's not showing any clearly obvious improvement with cheap cables, it may not be worth spending a lot of $$$ on.