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...

Having upgraded my speakers I was looking for something a little better then my monobloc chip-amps, but wanted to keep the chassis as there a good fit with the rest of my system.So using 45V rails and 20,000uf per unit, in went the HPA-nxV200 modules.The first thing that struck me was the improvment in the bass, very quick and tight.The treble was smooth and detailed, and the resolution just outstanding!I'm very happy with the results.RegardsMark G.Melbourne, Australia

Hi Anthony I would just like to point out that I think your build quality is far superior to the Classe Audio, I've been doing some A/B testing of the 2 x Classe CA-M400( http://www.e-hifi.com.au/classe/Amplifiers/cam400.aspx ) and the nxV500's.I think the nxV500 are better, the M400's are $10.9k each!You have made some fine amplifiers :) Nicholas HCanberra, ACT