Gefell UM900 ( +4? )
Old 13th May 2007
Gear nut

Thread Starter
Gefell UM900 ( +4? )

I purchased a Gefell UM900 about 6 months ago and love it. I've been using it through a UA 610 for vocals and acoustic guitar mainly (it is also killer as a mono drum overhead with a bit of crunch from the 610!).

The microphone has -10 db / 0 db / +4 db options. What is going on in the design? I would assume there is some sort of small preamplifier in the mic itself? Is there improper ways to use it that could harm the microphone?
Old 14th May 2007
70% Coffee, 30% Beer
Doc Mixwell's Avatar

Well, this switch is an attenuator with a boost feature. When in +4 mode, only the cardioid pattern will be active at this higher sensitivity setting. There is no mic-preamp in the mic, it will just bring up the output.
hope this helps

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