This procedure isn't as standard as XLR connectors. Next, you'll need to solder your third wire onto the TRS connector. That process will be different for each connector model out there. The final picture is me affixing the connector's body to the wire itself. For this soldering, it's helpful to have clamps or someone to hold the wires while you solder them. In the pictures, you'll see a view of the XLR connector from the rear along with a picture of how the wires should be connected.
Solder the wires onto the XLR connectors using the provided pictures as a guide. Be sure to keep this in mind if you'll be doing any work on a male connector! So, while the 1 pin is on the left for these connectors, the 1 pin is on the right for a male connector. Note that the physical layout for a female connector (what we're using) and a male connector are flipped about the vertical axis. XLR connectors follow a standard wiring procedure, and should have the numbers printed on them as a guide. If you haven't already, turn it on and let it heat up. Now it's time to break out the soldering iron. If you have similar equipment, these instructions should work, but tinkering with resistances will likely be necessary to get a good sound (remember - what you're building for here is for it to sound good). The equipment I was building for was two balanced outputs with impedance at 600Ω and an unbalanced input with impedance at 10kΩ. The details of selecting resistances for impedance matching (a necessary step in order to minimize signal reflection) is too detailed to get into here.
If you use this tutorial for your own needs, you will need to perform research on your equipment to adjust the resistances. This is mostly just for illustration purposes.
Any tools for affixing connectors to wireĪ note about resistors: For this tutorial, I am using 330Ω, 3.3kΩ, and 10kΩ resistors.
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