I just bought the Onkyo 770B ( its not here yet..) and was looking at the Fluance AV-HTB/ SX-HTB. My question is about bi-amping the speakers ( the mains) , on Onkyo's website i cant see the back of the 770, i was wondering if there is either a L/R output in the back or if there is like a Speaker a/ Speaker B out for the Fronts, and if so can they be operated at the same time, and have any of you done this? recomend this? I wanted to buy the Fluance to upgrade the speakers that come with the Onkyo, and heard that Bi-amping them would improve the quality. also what do you guys think of the Fluance speakers, AV-HTB VS SX-HTB, whats the difference( not from specs, but sonically)