Test Your Live Sound Fundamentals In Our Latest Quiz
Think your live sound knowledge is at the appropriate level? Time to find out!

May 03, 2016, by Live Sound Staff


Working with in live sound isn’t easy by any measure, which is why it’s always wise to be testing your skills.

Take a read and see how you stack up against our questions, and be sure to check out our other quizzes as well.

As always, some of these questions may have more than one correct answer.


1. Accurate gain structure:
A: Is the optimum adjustment an gain adjustments.
B: Will maximize output levels.
C: Will minimize noise.
D: All of the above.

2. CMRR means:
A: Common Mode Rejection Ratio.
B: Noise is cancelled by equal noise voltage in both conductors.
C: Both.
D: Neither.

3. VCAs (Voltage Controlled Amplifiers) are:
A: Also know as sub-groups.
B: Only used in automated consoles.
C: Never used without equalization.
D: None of the above.

4. A transformer isolator is needed to:
A: Create a floating input.
B: Create a unbalanced input.
C: Create a VCA.
D: None of the above.

5. The “VU” in VU meter means:
A: Volume Unlimited.
B: Voltage Unit.
C: Vector Unlimited.
D: None of the above.


6. Any TRS channel-insert cable must:
A: Have three conductors.
B: Carry both send and return signals.
C: Both.
D: Neither.

7. LCR is:
A: Level, Control, Return.
B: Often used in theatrical applications.
C: Left, Center, Right.
D: Both B & C.

8. The preferred “return” connection for effects is:
A: Directly into a sub-mix input.
B: Directly into an aux input.
C: Directly into a channel input.
D: None of the above.

9. Unity Gain is:
A: The amount of electrical energy used by a mixing console.
B: When an audio circuit is adjusted to neither amplify nor attenuate an audio signal.
C: The input level demanded by any outboard signal processor.
D: The difference between output level and output resistance.

10. Microphone input gain control is:
A: Also know as input attenuation.
B: Frequently referenced as pad.
C: Often called trim.
D: All of the above.


11. Headroom is the:
A: Difference (in dB: between a circuit’s nominal level and maximum level.
B: Another term for signal-to-noise ratio.
C: Slang term for in-ear monitor mixing.
D: Electrical calculation defined by CMV.

12. Foldback is a:
A: Noise-canceling circuit.
B: Term for a monitor mix.
C: Common insert-snake wiring scheme.
D: An obsolete mono mixing technology.

13. In-ear monitor mixes are:
A: Usually mixed in stereo.
B: Illegal in Germany (health reasons).
C: Always transmitted via wireless systems.
D: All of the above.

14. A monitor mixing desk:
A: Must be placed on the stage.
B: Always receives the “first” signal spit.
C: Is always used to create a matrix.
D: Is always configured for mono mixing.

15. A signal split is a conventional method for:
A: Reliable grounding.
B: Dividing input signals for multiple mixing functions.
C: Measuring potential gain.
D: Feedback control.


16. An analog mixing console must contain:
A: Summing amplifiers.
B: Voltage controlled amplifiers.
C: Phantom power ranging 9V to 52VDC.
D: None of the above.


17. Unwanted mixer noise can be caused by:
A: Misadjusted gain structure.
B: Silicon controlled rectifiers.
C: Poor room acoustics.
D: Both A & B.

18. A mixing console’s equalizer section can:
A: Create a sub mix.
B: Cause system-wide distortion.
C: Create a post-fader aux send.
D: None of the above.

19. A “direct out” allows for:
A: Converting mono inputs to stereo outputs.
B: A matrix output.
C: A potential split for live recording.
D: All of the above.

20. Any aux send (output) in pre-fader mode will:
A: Be unaffected by fader movements.
B: Never reach unity gain.
C: Require equalization.
D: Both A & B.

More Fun Quizzes on PSW:
Take Our “Real World” Stage Monitoring Quiz
Quiz To Rate Your Audio Skills, Knowledge & Personality Type

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Test Your Live Sound Fundamentals In Our Latest Quiz