1.Walk me through the signal flow from a vocal mic on stage to the main speakers.
Why they ask
It's the fastest way to tell whether you understand the system or just know which buttons to press.
How to answer
- Start at the mic and cable, then the stage box or snake and the preamp
- Explain gain, the channel strip (high-pass, EQ, compression) and where inserts sit
- Cover busses, groups or DCAs, and the main output
- Finish with system processing, amps and the speakers, and mention where monitors split off

