Well, I think this post will be little longer. First, I would like to thank Anthony for excellent job he did with this amplifier (Thank you, Anthony).Amplifier that I was using for a long time was one build based on AV400 schematic diagram, and I was pretty satisfied with it. Lower frequencies were very good, high ones were little “pulled back”. This, of course, could be attributed to my diy pcb, not so perfectly paired output transistors, or something else other then schematic diagram.When my amplifier died (I'm not revealing why), I purchased two NXV200 modules, ones with “garden” feedback capacitors. Power supply I build with 500VA 2x35V toroid, 6x10000uF capacitors (not low ESR), two block bridge rectifiers and 680nF + 1Ohm “snubbers”. First tests I did by directly coupling amplifier and my old Sony player's variable output. I was not impressed by result, but I was thinking “Well, I...

I have a pair of stereo amplifiers using your 4X NXv200 modules which were assembled by Mark Houston. I have to say that they are the best amps I ever heard. With experience from a few other amplifiers, yours simply decimate all others. Clarity, soundstage, transparency and speed of bass simply eclipses any other amp that ive heard. They are so crystal clear that they do great justice to my 2 way floorstanders using Scanspeak 18W8531G00 and Vifa tweeter. The amp is dead quiet. I had to strain myself to hear the slightest stirring of noise but it was coming from my hair that was rubbing against the cone of the speaker! I have thrown all my passive components away and set up my active crossover, with each driver independently powered by your modules.The sound is so natural and filled with emotion that I challenge anyone to feel nothing after...