I have bi amped several systems and never heard a difference that would justify the additional amp. Bi wire, same thing. I did hear a difference with an active 3 way system with an external crossover though. It was a Linn isobarik Brik system. I also copied the the Linn system with 3 Bryston LP2's and a Behringer 3 way analogue crossover. It was awsome. And cool to talk about. :)
