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Re: Difference NS 69i and NS 69k?
Author: erik sikkema
Date: 05/04/2006
I do agree with the writer herman is quoting. Question is, does your microphone preamplifier have condensers inside, to filter the 48V out, probably yes, would it all be worth the work. From an audiophile point of view the NS69 box is better, but then one should also look at the FET stage inside, and use a FET ala B&K4003 which can run on a higher voltage.

If I remember well the FET in the SM69 runs on 30V, using higher voltages and suited FETs will widen the total dynamic range of the microphone. The NS69 could supply you that voltage. Such modification should be done by an experienced audio electronics engineer, familiar with measuring microphone electronics.

If that is worth all, I do not know. I have worked with the SM69 with the N69 power supply, and I found it one of Neumann's most dissapointing microphones. Nice as a spot on the woodwinds, but as a main system, not really my idea about audiophile soundquality.

Erik Sikkema  
 
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