Sorry for the delayed response.Thank you Sean and Macdonj for your mutual agreement on using an active crossover to properly bi-amp.It seems that it would probably be better to sell my current 5-channel amp( Rotel 985II ) and buy a more powerful 5-channel or 3-channel amp and forget the bi-amping.I love 2-channel but I'm not ready to give up my DVD theatre either.Perhaps some day I'll be able to splurge and have both premium stereo and theater systems.