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Re: noise

Subject: Re: noise
From: Eugene E Dorcas <>
Date: Fri, 23 Sep 2005 14:53:33 -0700 (PDT)
I looked at the EM147 spec.   Looks like the EM158 is almost identical except 
for better sensitivity and SNR.

Klas Strandberg <> wrote:Primo has been trustworthy for many 
ears. I have used a similar capsule 
quite a lot - EM 147 and it sounds VERY good. Sounds much better than the 
specs, really. They spread a lot, so one has to check each one. (Primo 
openly admits that!) The EM 147 can be used for HQ musical recordings, 
even. Too noisy for naturerecording, though.
If the EM157 has the below specs, it is a sensation! I will listen with my 
Primo dealer on Monday and see if it is available in Europe. I also have 
contacts in Japan.

Klas.

At 19:13 2005-09-23, you wrote:
>Eugene E Dorcas wrote:
>
> >As the originator of the question let me go ahead an post the
> >complete specs from the mfr.
> >
> >1. Omni
> >2. -32 dB at 1 kHz (0 dB=1 V/Pa) Rload=2K Vcc=3V
>
>My assumption was correct, the sensitivity is referred to 1V.
>Sensitivity is usually quoted "open circuit," but here it's with a 2K
>load. That's rather significant given the next,
>
> >3. Impedance = 1.6K at 1kHz
>
>Rather high, but typical for a "raw" electret (like a PIP mic). It
>might not be possible to measure the output of a raw electret mic
>"open circuit." Anyway, this is one hot little capsule.
>
> >4. SNR = 75 dB at 1 kHz (1 Pa, A weighted)
>
>And that is A-weighted.
>
> >5. Max imput level = 115 dB SPL
>
>That probably depends on the PIP voltage. Good, if it's the same 3V
>they note in the sensitivity spec.
>
> >As a newbie I'm not sure I follow all the discussion but
> >my real question is - Will this mic perform well compared to my 183s ??
>
>Don't know the frequency response, that's important. It's 10dB hotter
>than a 183. Hot's always good for nature sounds but you might have
>preamp overload with loud sounds. The self-noise is 3dB better than a
>183. Sounds interesting, what is it?
>
>-Dan Dugan
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>

Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email: 
 





"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg 
Yahoo! Groups Links









[Non-text portions of this message have been removed]



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