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1. Re: R-44 issue-geek reply

Subject: 1. Re: R-44 issue-geek reply
From: "Raimund" animalsounds
Date: Tue Jun 26, 2012 12:19 am ((PDT))
> so, my question now is does anyone other than DPA make a microdot to xlr 
> adaptor that might be wired the way thats been suggested ? 


the easiest way to workaround around the problem would probably be to use a 
battery-operated external phantom power supply. 

As far as I understand, the microdot interface of the DPA microphones is just a 
2 wire connection, where both the signal and the power is transmitted through 
the same wire. I therefore  believe that the  signal wire of the microdot cable 
is probaly connected (perhaps through a series resistor) directly to the XLR 
pin 2 (or pin 3). You can probably balance the adapter (or even make your own 
one) by inserting an adjustable resistor (a 5k ohm potentiometer for instance) 
between ground and the other XLR signal pin 3 (or 2). You could then use a 
simple voltmeter for measusing the DC voltage between pin 2 and 3 and adjust 
the potentiometer until that voltage gets zero. This must of course be done 
while the microphone is connected to the adapter.


"While a picture is worth a thousand words, a 
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.

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