they're sold out now and I don't have one, so I can't really speak for its
quality, but I've been eyeing this device:
https://zvukolom.org/product/usi-phantom-adapter/
which would allow you to use PiP mics with a 48v phantom preamp ...
On Wed, Dec 9, 2015 at 3:13 AM, D Secomb
[naturerecordists] <> wrote:
>
>
> The ideal way would be to bypass the recorders preamp but just need to
> find something at the right price to do it with.
> David
>
> On 9/12/2015 11:15 AM, Norman Davies
> [naturerecordists] wrote:
>
>
> hi, some "PIP" recoders provide more than 3v. The Sony D100 provides 5v. =
A
> few others do too, but I'm not familar with the others. Someone else migh=
t
> comment on those.
>
> As for a staging amp between a mic and a recorder mic input, if I were
> you, I'd skip the recorder's mic input ( going by my rough gist of where
> you are coming from, here ) and get a sweet sounding preamp that outputs =
a
> roughly line level signal into the line input of your little recorder.
>
> norman.
>
>
>
> On Wednesday, December 9, 2015 12:38 AM, "D Secomb
> [naturerecordists]" <>
> <> wrote:
>
>
>
> Hi Eric
> Yes the preamp is between the mic and the recorder which normally supplie=
s
> PIP for the mic but with the preamp which one supplies the power. A boost
> from mic to recorder is what I desire. Does the batery box you describe
> does the. Does the EM172 handle 12v very well?
> David
>
> On 9/12/2015 8:12 AM, Eric Benjamin <>
> [naturerecordists] wrote:
>
>
> I think that we need more information. Do you intend this preamp to go
> between the PIP microphone and an existing PIP input?
>
> PIP has some fundamental limitations. It is basically defined by a 3 Volt
> supply and a 2k pullup resistor. The resistor gives rise to a minimum noi=
se
> floor, and the 3 V supply limits the maximum voltage to about 1 V rms. If
> those were the only limitations then the performance could be very good. =
A
> so called battery box helps by allowing a higher battery voltage and
> perhaps a higher value pullup resistor. As an example, the Primo EM172 is
> spec'd at -28 dBV/Pa and 80 dB SNR and 122 dB SPL maximum acoustic level.
> But that is with a 5V supply and a 3.9 k resistor. With 3V and 2k all of
> those specs will degrade slightly.
>
> You could build a battery box with those values and get the specified
> performance from the mic capsule. But there will still be a limitation on
> the maximum signal that can be accepted by the preamp in the recorder. Th=
at
> is, the preamp will clip. If you only want to record quiet sounds, then t=
he
> overload will probably not occur.
>
> To do a complete job on the interface design we need more info on your
> microphones and recorder.
>
> ------------------------------
> * From: * D Secomb <>
> [naturerecordists] <>
> <> <>;
> * To: * <>
> <> <>;
> * Subject: * [Nature Recordists] Preamp for PIP mics
> * Sent: * Tue, Dec 8, 2015 11:08:22 PM
>
>
> Hi all
> I have been toying with the idea of a preamp to go with a Sony and
> Telinga EM23 setup but having a lot of trouble finding any that are
> suitable for PIP 3.5mm gear, all phantom XLR types. Any suggestions.
> Cheers
> David
>
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