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Re: M149 tube
Author: Posted by Marik
Date: 04/01/2004

Dear Mr. Schneider,
First, I would like to tell that I highly regard many Neumann's microphones and at different points owned some 'classics'--SM2, U47tube,U67, U87, KM54. I was the person Han refered as 'engeneer' in his post. For different studios I have serviced and repaired literally hundreds of microphones, including Neumanns. If you don't mind I have a few questions:
1)As Han has mentioned, his tube became noisy after some 2 and half year. We all know that normally (esp. preselected) the tube should be fine for at least 20-30 years. Considering that you use 'special selected tubes', which priced quite high, do you have any warranty, which covers that, or every two-three years your customers have to pay some $400 for replacing the tube?
2)As I understand, first M149's were with 8254 tubes. If you could tell me please, I am interested to know the reason why later it was replaced with 6111? Is it a quality reason, or 8254' availability?
3)A few years ago friend of mine replaced his AC701 (which is by far much more expensive tube than 6111) in his forty years old M50. If I remember correctly, he payed $350. I am interested to know what makes 6111, (even specially selected) $50-$100 superior than AC701, considering that it goes noisy in two and half years?
Thanks, Marik  
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