I own Maggie 20.1s. I first powered them with an Accuphase P1000 SS amp. On paper, the Accuphase was the perfect amp. It was capable of delivering lots and lots of current, 1000 amps into a 1 ohm load!! The Maggies are a 4-5 ohm load, and that meant about 200-250 watts to that load. The sound was good, but not great. Very clean, quick, but not to my ears musical. I replaced the Accuphase with a pair of Manley Neo Classic 250s. EL34 tubed amps at 250 watts into an 5 ohm load. Much more musical than the Accuphase. The music had more sole, the soundstage was very realistic. I agree with Frogman, tubes bring out the best in Maggies. Oh, and I wouldn't hesitate to get the 60WPC Quicksilvers unless you like ear splitting sound levels.
