John, there is no EIN value of the Telinga MICamp as it doesn't work
at all without the input transistor, which is located in the electret
mic that is used! So it only works when a electret mic is connected.
But then:
The "input noise" of the Telinga PRE, connected to a microphone, will
be the noise of the microphone FET. This noise is amplified 55 / 35
dB and will come on top of all possible input noise which recorders perform=
.
The principle was used decades ago, when all professional nature
recordists had problems with the input noise of the Nagra III. Sten
Wahlstr=F6m then designed a very low noise preamp using a transformer
and the lowest noise input transistor that the time could offer,
Message: 2n930.
Subject: I don't think it amplified more than 20 dB, but it was enough.
I am now comparing a SSM system connected directly to the Sony D-50,
rated as one of the best recorders with it's -126 dBu. Another SSM
system is connected via the Telinga preamp to a Zoom H4n, rated -107
dBu. I will also try the SSM via the Telinga preamp with a Zoom video
camera q3HQ, input noise unknown, and I wish lend a Zoom H2, which
Raimund rated to -99dBu.
If the Telinga preamp "makes a D-50 out of a Zoom H2 and a strange
video camera", why not?
Klas.
At 16:00 2013-01-21, you wrote:
>That would be nice, but unfortunately I can't buy every piece of
>equipment that might be of use in order to test it. It helps me to
>understand the numbers so I can at least make a semi-educated
>determination as to whether a particular product is going to be worth the =
cost.
>
>With a microphone going into a preamp going into a preamp it looks
>to me like one wants to know the EIN of the first preamp in order to
>make sure it is a good match for the microphone. The EIN of the
>second preamp (recorder) doesn't matter so much because the output
>noise of the first preamp will likely be way higher (depending on
>how much gain is applied) than the EIN of the second preamp.
>
>Thanks!
>
>John
>
>--- In "Avocet" wrote:
> >
> > The ultimate test is your ears. Forget the theory and use a test sound
> > that you can reproduce and record it at various settings, then listen
> > back at the same level and hear the hiss.
> >
> > David
> >
> > David Brinicombe
> > North Devon, UK
> > Cogito cogito ergo cogito sum - Ambrose Bierce
> >
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
>Yahoo! Groups Links
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email:
website: www.telinga.com
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