Classe Cam 350, Bryston 7bs or Sim W5


I'm looking for amps for my Magnepan MG 3.6rs. I'm considering these three amps. I need your opinions and experiences.
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Can't help you with the Brystons (which I've heard sound great on other systems) or Sims, but I've been using the CAM-350's with Egglestonwork Andras, which require a great deal of power, and the 350's sound wonderful. I think the recent Stereophile review of the 350's used them with Maggies, and he raved about how they drove those speakers.
I'm using Theta's Dreadnaught 5 channel 200wpc amp, you can use it straight as a 200wpc amp, or biamp with identical amps.