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I need to make a cable for my PSB headphones that will have a mini TRS plug on one end and a stereo pair of female XLR connectors on the other (this is so I can connect to the XLR out jacks on my DAC and forego a dedicated headphone amp). I'm planning to use one cable per XLR and twist the pairs of wires in each cable to the connectors at each end. Is this the correct approach? Do I leave pin 3 on the XLRs unused? I've included a crude drawing to help illustrate what I'm doing. Sorry if this is an astoundingly stupid question, I've never tried anything like this before.
Follow Ups:
Do I understand your drawing correctly? Are there two wires coming from pin 2? Why? Do they form the twisted pair? It makes no sense whatsoever to twist two wires of the same polarity, and may even be harmful. Typically, and with good reason, the plus and minus signal wires form the twisted pair. That would be pin 2 and pin 1 wires, twisted.
Peace,
Tom E
Thanks. This was precisely my concern.
Maybe I am reading this wrong, but will you have some form of volume control in circuit from the XLR outputs or do the headphones have a level control of their own built in?
The British take on cables:
http://cablejunction.boards.net/
Yes, the DAC has a volume control.
Thanks.
Perhaps this will help.
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