Martin Audio MLA User Manual page 271

MLA System
USER GUIDE
In 'MODULES' mode clicking on any cell will mute or unmute all calls in the cabinet. In 'CELLS' mode you can mute and unmute
individual cells by clicking on them;-
Or an entire cabinet can be muted by clicking on the button to the right of each enclosure regardless of which mode you have
selected;-
This is how an entire muted enclosure is shown;-
Pressing the Mute Array button;-
Will mute every cell in the array;-
MLA System User Guide V2.1
271