DBLD, I have heard the 201 monos at Audio Connection in Verona, N.J. They did sound marvellous, but had problems driving the 4 Ohm 84DB Maggie 3.6. Reportedly, the 501 can drive the same speakers with great ease instead, but I have not heard them myself. During the audition the 201 monos were connected to the AC via their own stock power chords. By the way, John Rattan at Audio Connection is absolutely a delightful host, and extremele knowledgeable.
