On 01/04/2010, at 8:38 AM, Rob Danielson <> wrote:
> Its on the test "to-do" list. I'm not following how rec gain makes a
> difference in mic self-noise performance and the resulting recording
> if a sufficiently quiet pre is used. Such a pre would be necessary to
> compare the self-noise performance of the two mics.
Hi Rob,
I'd like to to compare noise output rather than self-noise as you have said=
that the calculated figures for the NT-2A are incorrect. The only way to =
determine if this is so is to record the two mics at the same gain level. :=
) In theory the NT-2A should be more revealing of preamp noise than the NT=
-1A due to it's lower level of noise output. I'm using lower in the sense t=
hat a noise level of -128dBu is lower than a noise level of -127dBu.
> routinely used "28" for recording with Hi-MD in the field and most
> of the tests I did were at "28." I'm not aware of anyone doing a test
> showing Hi-MD input noise increases with gain (that its not
> proportional). I'm open to the possibility.
Preamp noise levels and distortion typically increase as you reduce the amo=
unt of gain.
cheers
Paul
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