At 7:04 PM +0200 9/3/05, Klas Strandberg wrote:
<snip>
>
> > >That is: If you use a NH900 - then you can use any electret providing=
more
>> >than xx mV/Pa with a self noise lower than 14 db(A). If you do, you do=
n't
>> >have to worry about the NH900 input noise. The noise you get, is from =
the
> > >electret.
> >
Rob D asked:
>Makes sense in theory. Can I ask you how you came up with 14dB(A)?
Klas replied:
>
>I measured, just as one should. I have the Sennheiser meter with the
>normalized filters.
Rob D followed:
What is it you measured? The self noise of a reference mic or,..??
I'm still curious about how you arrived at that number. Just to be
clear: This number would be the minimum self noise figure (actual,
not just manuf specs, somtimes) for a mic used with an NH900 mic pre,
regardless of mic sensitivity, where the pre would produce more noise
than the mic. Right? Wrong?
Rob D. asked
>
>>Are you addressing electret mics only in this
>>summary? I mean, they have higher self noise as
>>rule compared to condensers.
Klas Replied:
>No, not only electrets. But I think that the ones going for phantom powere=
d
>condensor mics (usually) have other recorders than Walkman types.
Rob D. followed:
This may be less and less the case with people using a $70 portable
phantom unit like the Rolls. That's how I found that the low noise
performance of the NH900 was good, connecting the NT1A's through a
Rolls.
________________________________________________________________________
________________________________________________________________________
|