Infocomm Exam

Which of the following cables can be used to connect

a microphone to a mixer board?

• XLR M-F

• Power cable

• 1/4 - 1/4

• Speakon

Answer explanation

Power cables supply power, 1/4 - 1/4 can be used to connect an organ/electrical instrument to a DI Box, while Speakons connects speakers to amplifiers.

What can you use to shift

sound from left to right speaker?

• Gain

• Fader

• Pan

• Fx

Answer explanation

Pan PANS the audio from left to right or right to left

If a choir is performing at the hall, which mic and

what setting should you enable for the whole hall to hear? 

• Condenser 

  Phantom power

• Dynamic (SM58) 

  Phantom power

• Dynamic (SM58)

  Gain to max

• Condenser

  Gain to max

Answer explanation

Phantom Power is to be used only on condensors. This is very important.

What is the difference between an

ACTIVE and PASSIVE set-up?

• 1. The active speakers have built in amplifiers

• The passive set-up requires additional amplifiers

• Both set-ups require different mixer boards

• 1. All of them

How should you resolve a feedback issue of

a cabled mic while a speaker is speaking?

• 1. Lower the fader immediately 

• Plug out the mic

• Mute the mic 

• 1. Wait for the feedback to stop 

Answer explanation

NEVER plug out a mic while unmuted. Only muting the mic will not resolve feedback after the mic is unmuted and the Speaker begins to speak again.