Table of Contents

  1. Introduction

  2. Learning Goals

  3. What is Sound?

  4. Career Paths in Sound

  5. Basic Components of a Sound System

  6. Switching a Sound System On and Off

  7. Safety and Hearing Protection

  8. Review and Self-Assessment

  9. Glossary

  10. Appendix A: Diagrams

1. Introduction

Welcome to the Sound Desk Team! We’re thrilled you’re joining us to help steward the ministry of sound at Blaze Team Church. Whether you’re passionate about music, tech, or just eager to serve, this training is your first step toward becoming confident with the sound system.

“Preparing believers for ministry by using our abilities, gifts and tools selflessly, skillfully and with a servant heart through the ministry of music.”

This module will guide you through the basics of audio, safe operation, and your potential path forwardβ€”whether you’re just assisting or want to eventually manage the full setup.

2. Learning Goals

By the end of this training, you will:

  • Understand what sound is and how it behaves

  • Know the basic parts of a sound system

  • Power the system on/off safely

  • Identify career paths and roles on the team

  • Understand safe sound practices for the church

3. What is Sound?

Sound is a form of energy created by the movement of air particles. When something vibrates (like a vocal cord or a speaker cone), it pushes air molecules, creating waves that travel through the air.

These waves enter our ears and are interpreted as sound.

Fast Facts:

  • Sound is measured in frequencies (Hz) β€” high sounds = higher frequency

  • Sound travels faster in warm air and slower in cold or dense air

  • Loud sounds over time can cause hearing damage (more than 85dB for long periods)

πŸ’‘ Did you know? Some animals like bats and dolphins use sound to see and navigate (called sonar).

4. Career Paths in Sound

We train volunteers across two types of systems and two main roles:

Systems:

  • Analog – simpler, uses physical knobs and cables

  • Digital – controlled through software and apps

Roles:

  • Production (Operator): Manages live sound during services

  • Technical (Technician): Sets up and maintains the equipment

You can grow in any or all of these areas. To be considered an “Expert Sound Operator,” you must pass basic training in all four categories:

  • Analog Production

  • Analog Technical

  • Digital Production

  • Digital Technical

βœ… You’re starting with the Basic Module (MT.SND001). From here, you’ll discover which role fits your strengths.

5. Basic Components of a Sound System

Every sound system needs five main parts to work:

Component What It Does Example
Input Source Sends audio into the system Microphone, guitar
Mixer Adjusts volume, tone, and balance of each input Analog or digital mixer
Amplifier Powers the signal so it can drive the speakers Built-in or external amp
Speaker Converts audio signals into sound you can hear FOH or monitor speaker
Cables/Wires Carries signals between devices XLR, TRS, speakON

πŸ”Œ What about DI Boxes?

A DI Box (Direct Injection) converts signals from instruments (like a bass guitar) to something the mixer can handle. It also helps with long cable runs and reduces hum and interference.

6. Switching a Sound System On and Off

Turning the sound system on or off in the wrong order can cause loud “pops” or spikes that damage speakers.

πŸ”„ Power-On Sequence (Always Follow This!):

  1. Input devices (e.g., wireless mic receivers)

  2. Pre-mixer processors (if used)

  3. Mixer

  4. Post-mixer processors (if used)

  5. Power amplifiers (last!)

β›” Power-Off Sequence:

  1. Power amplifiers (first!)

  2. Post-mixer processors

  3. Mixer

  4. Pre-mixer processors

  5. Input devices

πŸ”Š Always turn amplifiers on last and off first to protect your equipment and listeners.

7. Safety and Hearing Protection

πŸ”ˆ Safe Volume Guidelines:

  • Keep average volumes under 85dB inside the auditorium

  • Check with the Music Director or Worship Leader if unsure

  • Watch for signs of discomfort in the crowd

🎧 General Safety Tips:

  • Never wear headphones at full volume

  • Don’t allow microphones to point at speakers β€” this causes feedback

  • Coil cables properly to avoid tripping hazards and damage

🚨 Sound can injure if misused. Be alert, be respectful, and protect people’s ears!

8. Review and Self-Assessment

βœ… Quick Questions:

  1. What is the correct sequence to switch a sound system on?

  2. Name the five basic components of any sound system.

  3. What does a DI box do?

  4. What’s the difference between technical and production roles?

  5. Why should you care about sound level limits?

9. Glossary

Term Meaning
DI Box Device that balances and conditions signals from instruments
Frequency Pitch of a sound, measured in Hz
Mixer Equipment that controls volume, tone, and routing of sound
Amplifier Boosts signal power so speakers can play sound
Feedback High-pitched squeal from mic facing speaker
XLR Standard 3-pin balanced audio cable used for mics

10. Appendix A: Diagrams

A.1 Signal Flow (Simple System)

[Mic] β†’ [DI Box] β†’ [Mixer] β†’ [Amp] β†’ [Speaker]

A.2 Power-Up Diagram

Input β†’ Mixer β†’ Amp
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