www.neumann.com
Forums:
Email:









Forums / Archive / Thread
'Rediaphragming' a capsule
Author: Posted by David Satz
Date: 04/01/2004

Marik,
I certainly don't speak for Neumann, but it's my fairly clear impression that they don't 'rediaphragm' any capsules--they treat the entire capsule as a single, replaceable part. This makes sense technically since it is important for the two halves of the capsule to match one another closely (for the 'omni' and especially the figure-8 patterns), so it it preferable to make the halves of the capsule separately and test them, then choose two which have the same sensitivity.
If you 'reskin' one or both sides of an existing capsule you will get whatever degree of symmetry you happen to get--and I would imagine that the only way to bring it within specification would then be to try again, and perhaps again, and again ...
The designation KK 67 which you mentioned actually refers to the entire 'head' of the U 67 microphone, which includes many other expensive parts in addition to the capsule; thus it costs considerably more than the capsule alone. If you need to replace only the capsule, the needed part would be the K 67.
However, since this same capsule is now used in the U 87A microphone, but the designation 'K 87' was already used for the capsule of the original U 87, your capsule is usually called 'K 870' or even 'K 67/870' nowadays.
--best regards  
Posted by Han
03/31/2004
 
Posted by M. Schneider / Neumann
03/31/2004
 
Posted by Han
03/31/2004
 
Posted by Marik
04/01/2004
 
Posted by Marik
04/01/2004
 
Posted by David Satz
04/01/2004
 
Posted by Klaus Heyne
04/02/2004
 
Posted by Klaus Heyne
04/02/2004
 
Posted by David Satz
04/02/2004
 
Posted by M. Spahrmann / Neumann
04/05/2004
 
Posted by Marik
04/07/2004