Hi Anthony
I have been using your amp (nxV200)for over a month now, and have made my decision on its sound quality. It is now my main amplifier and I have sold my Duevel amplifier (I see the new price for these amps is now nearly US $5K)
In my system it gives my speakers a bit more control on bass lines. I listen to a lot of female vocals and the treble is just that bit better suited to my hearing. So you have developed a stunning unit in my view.

All the best

Andy, New Zealand