Sorry Tony,I don't have a clue.As Uncle Dave says,it could be a bad connection.
I got my akg 1000 out today to compare with the E855 and I found that I got a bit more volume and a little more mid range from the akg. However the Sennheiser is more comfortable to sing into close up, without popping or distortion.The Akg is a much better mike for recording acoustic guitar and such.I would use either for on stage vocals with the edge going to the E855. Terry
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terryc