R/E/P > Klaus Heyne's Mic Lab

Neumann U67 Reissue: Complete Tear Down and Analysis

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SDVIG:
Klaus, thanks.
Found a couple of videos on youtube:

https://www.youtube.com/watch?v=WB5ZAIOV6Pk&list=LL&index=17

https://www.youtube.com/watch?v=P0qRZamthFM

If you look at my photo, there is no protective seal.

klaus:
Both videos show how the mic comes from the factory: plastic wrapped in the form-fitting tray inside the suitcase.

If your mic does not have the protective wax seal on the head, there are only two possibilities:

1. someone had opened the head, and Neumann likely will not honor its one-year warranty for the mic.
2. someone forgot to put the factory seal on (this would be a first)

Open the head
(https://germanmasterworks.com/publish/articles/Advice/Step-By-Step-Instructions-On-How-To-Open-A-U87-Head-%28Same-as-U67%29.html) 
and make sure that you have the original capsule inside (it should be dated "21" or "22").

SDVIG:
Klaus,Thank you very much.

Marcel9206:
Hello,

I'm considering buying a U67 reissue, but then I would like to have the capsule tuned the way Klaus suggests tuning it. I would also replace the tube with a good NOS one. But since I am in Belgium and Klaus is in the US (am I right?), it would be a pricy and risky thing sending over the U67... Do you know anyone in Europe (I'm in Belgium) who is capable of this? I've heard Siegfried Thiersch in Germany is very good working on vintage capsules? Anyone any experience?

Or do the current U67 capsules already sound better? And is it worth spending 6.000 euros on a new mic that still needs a serious upgrade to turn it into a better mic?

Any advice most welcome! Thanks!

RuudNL:
FWIW: I own two U67 reissue microphones and they sound and measure great 'out of the box'.
So why not try them first before taking more expensive options?
It is easy to change the tube yourself, if you want to.

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