Gain structure training
Gain before feedback practice
Gain before feedback is not one knob. It is mic choice, placement, stage volume, monitor aim, EQ, gain staging, and knowing when not to add more. Main Act trains the ear and decision loop so you can act before the ring blooms.
What to do first
Step 1
Set clean input gain before chasing loudness.
Step 2
Reduce the sources that are feeding the mic: wedges, stage volume, and open channels.
Step 3
Identify the feedback band before cutting.
Step 4
Make a practical tradeoff between volume, tone, and stability.
Drills this points into
Gain Before Feedback
Feedback Frequency ID
Monitor Mix
Room Diagnosis
Try the diagnostic before reading more
The fastest automated path is the free feedback test: it gives a concrete score, a weak band, and a reason to start daily Live Sound reps.
Questions
Why does adding vocal level create feedback?
The mic hears the speaker or wedge, that signal loops back through the system, and the most resonant frequency takes off first.
What does Main Act train first?
It starts with feedback recognition and simple gain decisions before moving into harder monitor, room, and full-band scenarios.
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