Years ago, when I was testing amps with Martin Logan SL3s, I tried a number of amplifiers, and the Counterpoint NPMs (not NPS400) were among the best out there - unfortunately for me at the time, they had just been sold to someone else. I think they are wonderful amps (but have never tried the NPS400) They gave more 'depth' than the Innersound amp (which was otherwise great), and in the end, I settled for big VTL MB-450 Signature amps, which CAN drive an impedance as low as 1ohm.
Counterpoint NPS 400 w/ Electrostats
Hi: Just wondering if anyone has had experience running electrostats such as Innersounds or ribbons such as Magnepans with Counterpoint NPS Series amplifiers. I know Michael Elliott recommends in his manuals that these amplifiers should not be used with very low impedance loads, however his NPS 400 is rated at 400 watts into 4 ohms. Thank you.