Re: preamps

[Dan Dugan <>]

I'm nit-picking, but good engineering requires that. Rob Danielson, you wro=
te,

>I'm all ready to accept that self-noise for the MD consumer mic pres
>is <13dBA, believe me!

You can't describe mic preamp noise as related to a sound pressure
level. Different mics produce different voltages for the same SPL.

Mic preamp noise is commonly specified as Equivalent Input Noise
(EIN). Typically something like -125 to -130 dBm or dBu.

-Dan Dugan


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