PreSonus StudioLive 24.4.2 - Manual (Page 11)

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2 Getting Started
2.1 Level Setting Procedure
StudioLive™ 24.4.2/16.4.2
Owner’s Manual
10. Speak or sing into your microphone at approximately the
same volume you expect during the performance.
11. Turn the trim knob on Channel 1 clockwise while watching
the first meter in the Fat Channel. Adjust the Channel 1 trim
knob until a little more than half of the green LEDs are lit. The
red LED at the top of the meter should never light up.
12. Press the Select button on Channel 1 and raise the Channel 1
fader until it reaches “U” (unity gain).