I used to own the M20s as well. Loved 'em. The only thing similar about Audio Refinement and my YBA, Passion is the fact that they are French. That being said, these babies love lots of juice. Even though I was driving them with 100 per, I wouldn't have minded having another 100 of the same quality. That can get, in this case, very expensive. The M20s, like all monitors of this kind, need great stands. The Revel stands are very poor. Substantial stands cost substantial $$. The highs are just a tad metalic, if you will, but, still, unfatiguing. You'll need a sub, but these babies can deliver down to 40Hz. Beautiful midrange. I just sold mine a few months ago for another pair of monitors. peace, warren
