I'm not quite sure from your description whether the Audio Refinement amp is SS or tube, since I am not familiar with it. However, I do own MMGs and drive them with a pair of Quicksilver kt88 tube amps rated at 60 watts per channel. They drive the MMGs to higher levels than I really need. But I do cheat a bit using a subwoofer with a high-pass filter. I previously used these amps to drive a pair of Acoustat Spectra 1100s to satisfying levels, and they are a very difficult load to drive.
Jim Robinson
Jim Robinson