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8. Re: 3.5mm mini mics, XLR connections and Fostex FR2-LE

Subject: 8. Re: 3.5mm mini mics, XLR connections and Fostex FR2-LE
From: "Rob Danielson" danielson_audio
Date: Sat Jul 26, 2008 1:40 pm ((PDT))
At 7:57 PM +0000 7/26/08, clay wrote:
>--- In
><naturerecordists%40yahoogroups.com>=
m,
>Rob Danielson <> wrote:
>>
>>  At 6:40 PM +0000 7/26/08, clay wrote:
>>  >I'm thinking of picking up a FR2-LE on ebay with
>>  >the huge discounts currently available...
>>  >
>>  >and am curious how best to connect mics that
>>  >previously went straight into my MZ-RH1.
>>  >
>>  >what's the best manner for connecting 3.5mm mini plugs
>>  >to the FR2-LE XLR/Combo input?
>>
>>  What mics, specifically? This module,
>>
>><http://www.naiant.com/pfaspecification.html>http://www.naiant.com/pfaspe=
cification.html
>>which Kim posted about
>>  last week looks promising to support mics that require PIP powering.
>>  If you want to use mics that have built-in batteries that do not seem
>>  to be XLR/phantom-powering compatible, let us know which mics. It
>>  depends a bit on whether you can turn the FR2-LE's phantom powering
>>  off which I'd have to look up.
>
>Rob,
>
>I'm often doubling up on mics when miles away from
>the car - since on any given day, I'm also shooting
>digital images or recording HD video.
>
>I often use a Rode Stereo Video Mic which has 9volt battery
>and mini connection.

Check to see whether you can turn off the phantom power in the
Fostex. You might be able to connect the SVM unbalanced-- that is--
with a stereo 3.5mm (female) -> 2 XLRM adapter cable in which pin #3
is connected to ground (pin #1).

>
>I just picked up an Aquarian H2A hydrophone as well,
>mini version which is PIP.

Use the Phantom->PIP adapter/

>
>I sometimes use a Rode NTG-2 (phantom or AA battery) with
>a transformer into mini video input or minidisk mini,
>but this should be fine with FR2 as it's XLR native.
>
>And I just got in line for EM23 PIP stereo pair from Klas.


Use the Phantom->PIP adapter/

>
>My quest for lo noise single point stereo of the XLR
>variety continues. Until then, I use the SVM, which is
>in the high teens for self noise.
>
>>
>>  >does using a mini to 1/4" adapter
>>  >(commonly used with headphones and such)
>>  >degrade the sound or increase noise?
>>
>>  Not if the connection is good. Of course, in your example, any
>>  "static" from a poor connection would only affect monitoring, not
>>  the recorded signal. Rob D.
>
>agreed, so, if used to convert mini mic input
>to plug and play with 1/4 trs jack, would static
>from poor connection be the only issue, other
>than the power issue addressed above?

This seems to potentially apply only to your SVM. Email Rode and ask
them about using an adapter cable or other suggestion? Rob D.

>
>thanks
>clay


--






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