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Re: Unballanced (was XLR) Cable Connection

Subject: Re: Unballanced (was XLR) Cable Connection
From: "Dan Dugan" dandugan_1999
Date: Thu Apr 21, 2011 1:14 pm ((PDT))
> I have a similar question, except I want to run unbalance stereo plug-in-=
power microphones about 100' into the back yard. I plan to use a stereo min=
i to xlr 3pin adapter on each end, and use a star quad type cable for the m=
ain run. Left and Right on pins 2 and 3 of the cable. Would this work in an=
 urban area with lots of radio and RF around? What would be a better option=
?

I run PIP mics at the end of 50' very small diameter video cables (each mic=
 separately), and at the end of a 100' two-conductor and shield cable (ster=
eo pair). I've never had an RF problem except picking up my own mobile phon=
e. I even got away with recording in a church in the city, where taxi trans=
mitters can cause havoc. You never know, maybe I was just lucky.

For me the main worry with long cables for PIP mics is the high-frequency r=
olloff from the relatively high source impedance of the mics (2-3 Kohms), a=
nd the cable capacitance. I haven't measured the rolloff, but my long cable=
 recordings sound ok.

-Dan





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