I would concur with morphsci -- bi-amping with different amps for low freq and high freq has the potential to be a real headache. A pair of 200's would drive your Monitor 11's with power to spare (I'm driving a pair of Studio 60's bi-wired to a Model 750 amp -- 165W each gives them all they've ever needed for me). A 755 later would round things out nicely.

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gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review