I currently own a KAV-300i with MMG's. Although I am planning to upgrade to better (non-planar) speakers, I've enjoyed the sound. The Krell can squeeze bass out of the little planars better than I expected. They can be a bit bright, and overall I agree with the previous comment: Magnepans with Krell amps can be a bit bright on some music. MMG's are not as bright as the MG1.6QR's though, so you can get away with it. In my judgement, I'd get the Krell and then upgrade the speakers to ProAc's or B&W's later on. Fabulous combinations!