Onkyo 606 and B & W 684 Home Theater

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Hi I'm buying B & W 684 Home Theater Speakers and Onkyo 606 Amp. I'm just wondering are these a good match or do i need a better amp for the speaker system?

Also how does Monitor Audio RS6AV speaker package compare with the B & W 684 package?

Which do you think is better? I will be using the speakers 50/50 for Movies and Music..

thanks in advance