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U87 Repair Details
Author: Trahern Jordan
Date: 09/09/2012
Hello,

I would like to send a 1973 U87 in to Neumann USA for repair. However I have a few questions:

1) I would like the current reskinned capsule replaced with an authentic k87 capsule. I had Neumann USA replace one in another U87 I had a year ago and was not happy with the sound. It sounded very 'hard' and quite a large high end frequency lift. How can I ensure that the capsule that is installed in this mic is of the highest quality? Considering the cost I really don't want to be disappointed again.

2) What kind of acoustic tests are done to ensure that the repaired mic performs at the best conditions within the original factory specs? Again, the previous mic that I had worked on sounded completely different than when I sent it in and came back to me sounding very modern, there is nothing 'smooth' or 'warm' about the mic now. If you could detail the tests Neumann USA goes thru to ensure that the mic performs to factory specs I'd appreciate it.

3) If a mic's electronics (caps, fet) have been 'modded', does Neumann USA have the capabilities and parts to return the U87 back to factory specs regarding the electronics? This includes voltage stabilization, the FET transistor and the bias adjustment.

Also, if there's anything you can think of that I should do (what to say, who to contact) I'd appreciate some advice. I want this 1973 U87 to come back good as new and not sounding like a harsh mic that needs lots of eq to make it sound good.

Thank you,
Trahern Jordan  
 
Reply
Trahern Jordan
09/09/2012
Uwe Sattler/NeumannUSA
09/10/2012
Klaus Heyne
09/10/2012
Klaus Heyne
09/12/2012
Trahern Jordan
09/11/2012
Uwe Sattler/NeumannUSA
09/11/2012
Klaus Heyne
09/12/2012
Trahern Jordan
09/12/2012
Martin Schneider/Neumann
09/12/2012
Doug Jane
09/12/2012
Martin Schneider/Neumann
09/13/2012
Doug Jane
09/14/2012
Uwe Sattler/NeumannUSA
09/12/2012
Klaus Heyne
09/12/2012
Uwe Sattler/NeumannUSA
09/13/2012
Doug Jane
09/13/2012
Uwe Sattler/NeumannUSA
09/13/2012
Doug Jane
09/14/2012
Martin Schneider/Neumann
09/14/2012
Doug Jane
09/14/2012
Trahern Jordan
09/15/2012
Martin Schneider/Neumann
09/16/2012
Martin Schneider/Neumann
09/16/2012
Trahern Jordan
09/17/2012
Kirk LaBelle
10/12/2012
Martin Schneider/Neumann
10/12/2012
Kirk LaBelle
10/12/2012