Audioclinic guy is an upright guy too. I actually bought one of those amps, the USX 2080 from Audioclinic(Mike) and he accidently sent me a UST 2080, when I let him know he sent the wrong amp he imediatly shipped the USX and told me to keep the UST. I thought only the USX were "handcrafted by zed audio" but when I opened it up the UST it too was a zed amp. It was interesting to compare the two side by side, the USX has larger transistors and some of the smaller components appear to be better quality, but then again I don't know too much about manufacturing amps.