Videos about big audio systems

Here are some interesting videos related to PA and sound reinforcement systems. Wikipedia defines that a public address system (PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. The term, sound reinforcement system generally means a PA system specifically for live music or performance. A sound reinforcement system for a rock concert or other large event in a stadium may be very complex.

Larsen effect

A brief history of live sound reinforcement

Stage Left Audio – Event Video 11

Dave Rat about his sound engineering for the Red Hot Chili Peppers live tour 2016


Look inside D&B, L’Acoustics and MicroWedge Monitors

DJ Sub and Speaker Placement For Dummies

Cardioid Subwoofers and Nexo Technology Part 1

Time Lapse of a Large PA Audio Sound System Setup for Rock & Roll

#38 – Arena line array system walk-through

How to Set Up a Simple PA System

Sound System Tuning Step-by-Step using TRACT and Smaart

Audio 101- How to do a pro sound check.


  1. Tomi Engdahl says:

    For all the techs wining about DJs who play all the way in the reds..
    Pioneer just released this mixer with the stagehand app. Take control of the DJ.

  2. Tomi Engdahl says:

    Bassnectar 360 Subwoofer Sound Design

    Lets take a look at optimizing a 360 Degree Arena Cardioid Subwoofer Coverage with a focus on extreme cancellation venue center.

    00:00 Intro and description
    02:15 Soundvision prediction 5 subs forward facing
    04:22 40 sub ring
    06:05 5 subs with 3 rear subs with no delay
    06:54 5 subs with 3 rear subs end-fire
    08:45 5 subs with 3 rear subs cardioid
    10:08 Adding in full ring in cardioid
    13:03 Magnitude of cancellation and real world
    13:57 Temperature make a difference
    15:59 Dealing with real time adjustment of cancellation
    17:50 Photos of show
    20:49 Outro

  3. Tomi Engdahl says:

    Design End-fire or Cardioid Sub Array in 5 Easy Steps!

    Here is a quick video on how to tune and place subs for an end-fire or cardioid array

    This includes all the math you need to create an effective directional sub array with as few as two subs

  4. Tomi Engdahl says:

    You Are Ruining Your Audio! – How to EQ voice properly

    The V-curve is a popular way of EQing voice. But in many cases this curve simply does not work as each microphone, voice and recording situation is different. In this video I will show you some tips and tricks on how to properly EQ voice.

    00:00 The V-curve problem
    02:53 How to EQ voices
    08:41 Verdict

  5. Tomi Engdahl says:

    5 System Tuning Mistakes Worth Avoiding

    We’ll cover:

    - The biggest step everyone skips
    - How to not screw up your mains to sub crossover from the start
    - Where I place my microphones for line array tuning

    00:00 – Intro
    00:39 – Skipping Verification
    04:24 – Mindless Mic Placement
    09:31 – Parametric Pulverization
    13:02 – Doubling Up Crossover Processing
    15:37 – Toolset Unfamiliarity
    18:52 – Recap

  6. Tomi Engdahl says:

    Kick Snare Bass Subgroup Compression & EFX Demo

  7. Tomi Engdahl says:

    Sound System Signal Flow Evolution

    Lets look at the evolution of basic signal flow in sound systems and the advantages of bi-amplification and separate sub sends

    00:00 Introduction
    00:13 Passive Crossover
    00:52 Active Crossover
    02:02 Adding Subwoofer
    03:40 Mixing Instruments
    05:19 Separate Subwoofer Send
    07:31 Outro and Up Next

  8. Tomi Engdahl says:

    Aux Fed Subs Are Better – Because of How Mics Work

    I explain and demo the issues with subwoofers connected to the left right outputs and show why controlling what inputs are sent to the subs is preferable, due to microphone limitations.

    00:00 Introduction
    01:12 Mics are flawed
    03:20 Diaphragm mass
    06:25 Mics add unrealistic low end
    07:56 Demo of subs aux vs subs to L/R
    11:31 Dont send inputs to subs that dont need subs
    13:18 Outro

  9. Tomi Engdahl says:

    No One Cares About Your Audio Gear – Diminishing Returns on Microphones

    Today I share my thoughts on diminishing returns and microphones, where the threshold his for dynamic mics and condenser mics, and what you might be getting for the higher price point.

    00:00 – Intro
    00:35 – Category 1: Dynamic Microphones
    04:33 – Diminishing Returns on Dynamic Microphones
    07:03 – Category B: Condenser Microphones
    10:14 – Diminishing Returns on Condenser Microphoens
    12:19 – Summary
    15:04 – Conclusion

  10. Tomi Engdahl says:

    Mixing Live vs Audiophile Home Hi-Fi vs Dinner—4o

    The video “Mixing Food and Audio” presents an analogy between sound and cooking, demonstrating how the mixing of food and audio can be similar. The creator uses kitchen ingredients to represent musical instruments, blending different sounds to create a complete rhythm section. The video also explains the process of mixing music with bass and guitar to get a stereo mix and how in a live mix, things can be readjusted easily, but when producing a final recording, the mix can not be altered in the same ways. The speaker suggests that it would be better to send different instruments separately to the listener rather than mixed together, creating a more realistic and immersive experience.


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