Derek,
The second sensitivity rating for the MKH 30 is the
sensitivity with the 10 dB attenuator engaged. -10 dB
is 0.316, and 8 mV/Pa divided by 25 mV/Pa is 0.32.
If you are not accustomed to reading microphone specs,
Pa is an abbreviation for the unit of one Pascal,
which is equivalent to a Sound Pressure Level of 94
dB. 94 dB SPL is a loud but not painful level, and
thus makes a convenient reference level. As a guide,
normal conversational speech is about 60 dB SPL.
Eric
--- derek holzer <> wrote:
> How do you read this stuff? For example, the
> Sennheiser MKH 30 has two
> ratings side by side:
>
> 25mV/Pa (8mV/Pa +-1dB)
>
> Which number would represent the effective
> sensitivity which I could
> compare with another mic, say the MBHO KA 100 LK
> capsule, which rates:
>
> 12 mV/Pa
>
> on the spec sheet?
>
> Does this mean that MKH mic is more than twice as
> sensitive as the MBHO,
> or that the MBHO is about one and a half times as
> sensitive as the MKH?
>
> Are there other factors in the spec sheets that I
> would have to take
> into account to get a good comparison between
> different mic
> sensitivities and self-noise?
>
> thx + best,
> d.
>
>=20=09
>
> --
> derek holzer ::: http://www.umatic.nl
> ---Oblique Strategy # 40:
> "Decorate, decorate"
>
>
> "Microphones are not ears,
> Loudspeakers are not birds,
> A listening room is not nature."
> Klas Strandberg
> Yahoo! Groups Links
>
>
>
>
>=20
>
>
>
>
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