Sennheiser K3U/ME40


Active Member
We have three old Sennheiser K3U/ME40 mics that we want to use for area miking. I know they use the old K3U batteries to run as if it has an inline phantom power on it, but there is a 3-way switch on it. It has 1, 2, and 3 written in roman numerals and we can't figure out what it does. As far as I know the ME40 is the cardoid capsule on it, but if I'm wrong, let me know. Anyway, if someone can tell me what the switch does and how it works, that will be great.

here's a pic of the mic

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