I ran Maggie 3.5 with the Counterpoint NPS400 for a couple years. This amp has the same power rating as the SA20/220 and NP220 amps. The amp performed incredibly well with the Maggies. There was never an issue of the sound being constarined. The Wolcotts that replaced the Counterpoint brought on a new level of dimensionality and bloom but at twice the cost....otherwise there was not a huge performance improvement here. Overall I would say the Counterpoint is the very best value amp for these speakers and I tried many ARC tubes amps here as well.
John
John