Hello, and welcome to the Soundcraft Video Manual Series. Today, we’ll be quickly covering how to extend the number of auxes available on the Ui12 and Ui16, allowing you additional busses for monitors or other applications. Let’s get started.
 You may have already noticed that in our Aux Sends screen, we have some additional auxes that are not available to us by default.  We can enable them, but the Ui12 and 16 can only do so at the cost of our headphone outputs. Head to your settings by selecting the gear icon at the top. Under the global section of the settings tab, look for the “headphones out” option. Changing this from Master to Aux will make our additional auxes accessible and they will be patched to our two headphone outputs. 
Because these mixers are hard wired for the headphone outputs to be the same signal, both headphone outputs will contain both auxes. This cannot be changed, so let’s cover some wiring considerations. If you’re using the additional auxes together as a stereo pair on one of these outputs, then you can send the aux signal over a single TRS cable if the device you’re sending to has a single stereo input. However, you will need a special insert or stereo-splitting Y-cable if your receiving device has separate left and right mono inputs, or if you are running to separate monitors. This cable should be TRS on the end connecting to our mixer’s headphone output, but split into a dual connection that will have the TS from our mixer or left channel on one side and the RS or right channel on the other.