I was given a pair of Magnepan SMGa and have nothing to power them that is 4ohm in my search for a used amp found this one called Well built technology 302 has no indication where it was made on it at all. I found also another Amp that looks like it was made by the same manufacturer called WB Callipers no information on them either. To me it looks Canadian made, I could be wrong. The Chinese site I found a picture to post claims it to be German I'm pretty sure its not. If anyone knows of this Amp would really like to know if it is 4ohm and who made it.