> There is something about the sonic character of the BP4025's self noise w=
hich makes it much more transparent than others of similar noise rating. Wh=
o knows...could be voodoo.
Jamie,
No mystery, no voodoo, it's the noise spectrum which is different. Weightin=
g
is supposed to equalise this but most manufacturers quote "A" weighting
which doesn't correspond to the average ear at low noise levels. ITU-R 468=
weighting is better but still far from perfect and it gives higher noise
figures because the curve is defines differently, so it is not used for
selling mics to lay persons.
The low level noise which is most objectionable is in the lower kilohertz
region, but it varies person to person. That's why you can get different
opinions and a lot of confusion. Now consider stereo noise as opposed to
mono noise from each section of a mic, and you've got a load more variables=
to cope with. I think this is what you might be hearing.
David Brinicombe
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