soldering an XLR to Cinch adaptor - diyAudio
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Old 6th April 2007, 09:44 AM   #1
diyAudio Member
Join Date: Mar 2006
Location: Niedersachsen
Default soldering an XLR to Cinch adaptor


I've got a PA Amp here, wich has symmetrical inputs, but i have only unbalanced sources, cinch.

How do I connect to to wires from the cinch plug to the XLR?

I whould do it this way:

Pin3 -> outer conductor of the cinch cable
Pin2 -> inner conductor of the cinch cable
Pin1 -> not connected


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Old 6th April 2007, 09:57 PM   #2
diyAudio Member
Join Date: Nov 2002
Cinch plug also called RCA PLUG.

Connect pin 1 and pin 3 to the outside. Connect pin 2 to the inner or tip.

Note* There is a ready made adapter that will mate a RCA to XLR connector that could also be purchased. These are available in either male or female RCA.
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Old 9th April 2007, 09:29 AM   #3
diyAudio Member
Join Date: Mar 2006
Location: Niedersachsen

There is a ready made adapter
Yes, i know. But i forgot to order...

Right now pin1 is unconnected and it works fine
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Old 9th April 2007, 09:49 AM   #4
AndrewT is online now AndrewT  Scotland
diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
leaving pin1 from the balanced transmitter can cause the transmitter to perform badly.

It would be better to make the cable universal by connecting pin1 to pin3.

Even better is substituting a dummy load between pin1 and pin3 to match the requirements that the transmitter is expecting to see. This last suggestion is not universal.

Then listen to the 3 options.
regards Andrew T.
Sent from my desktop computer using a keyboard
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