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Setting up and Using a Matrix on the Ui24R

Written by Joe Reed

Updated at January 26th, 2026

​​​​​​This video provides a walkthrough of how to set up and use a Matrix with the Ui24R.  Matrices are an easy way to add copies of output busses, providing an easy way to copy the main L/R, aux feeds, or subgroups.

Transcript
Chapter 1: Intro
[Music]
Chapter 2: Overview
Hello and welcome back to the SoundCraft UI video manual series. Today we're going to talk about using matrixes in the UI24R. A matrix is another type of bus or output like an ox. Unlike auxes that contain individual channels, 
Chapter 3: Matrixes Intro
matrixes
 contain a collection of our buses or outputs like the main left and right.
Let's get started. Sometimes you may encounter a situation where you need an additional left right mix or aux feed to send somewhere, maybe to a separate video or recording input. In this case,
Chapter 4: Setting Up
we can sacrifice one of our auxes for a matrix that will contain a copy of the main left right signal. Let's go ahead and navigate to the aux sendense by
clicking the button on the top. Select an aux, then navigate to the main ox fader on the right hand side. At the bottom of the fader, tap and hold the aux name to bring up an additional menu.
Then select switch to matrix. Once changed, our aux should now be a darker orange color and be labeled MTX if you're using the default aux names. Now we can see that the channels we have to mix are no longer our individual input channels, but our output buses. Now you can have a mix of any of these post-processing buses.
Great for simply copying a bus signal.
The main left right feed is also available at the end of this page,
making this an easy way to get a copy of your main mix without setting up a post fade aux mix at Unity. That's all for Matrixes. 
Chapter 5: Outro
Thanks for watching. Please like and subscribe for more video manuals like this. For more news,
product information, and troubleshooting tips, visit us at soundcraft.com or our anytime help center at help.harmanpro.com.

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configuring matrix vms

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