Neumann Vintage U87 Clone : Build Thread.

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May 27, 2018
OK, so now that I have also built a U87ai from the current Mic & Mod kit, I have now put its K87 capsule (with isolated backplates) in the U87i (the one we’re talking about here) just for trying.
Now everything is working, BUT I have a very high noise floor in figure-8 mode now. No hum, rather hiss and crackling noise, and only in figure-8.
Any idea how I can solve this issue?

If I’m successful then I would probably just order another K87 capsule so that both mics work properly.

EDIT: Cleaning the PCBs helped removing the noise completely. With the K87 capsule everything is working PERFECTLY. :)
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