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Re: Difference NS 69i and NS 69k?
Author: Klaus Heyne
Date: 05/11/2006
Herman,
David and I agree, for the most part, on the issue here, because it is straight forward:

the ultimate performance from an SM69 mic when using a CU48 can ONLY be obtained by hooking it up to a mic pre with transformer inputs (I am very doubtful that the TC has them)

Whereas if you use an NS69 you will have two additional options for superior sound: you can hook to any mic pre that does not provide any kind of phantom, or use a mic pre with phantom whose performance you find so good that you can snip the phantom off and hard wire the connection from the XLR input to the pre's electronics.

There is often another argument raised in defense of the NS69, one which I cannot verify, because I have not made any listening or measurement tests:

Current reserve, at least theoretically, should be a bit higher in the NS 69 than the CU48. Again, at least theoretically, such reserve could push out the headroom (undistorted dynamic) of the mic's FETs past that of phantom power's rather limited supply to them.

So, if you now make your comparison test with your mic pre's capacitors in the way, the only possible difference I could imagine you would notice is the point where the mic starts to distort.

Best regards,
Klaus Heyne  
 
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