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

LIVE SOUND SUBS SUBWOOFER PLACEMENT & CONFIGURATION: LR, Center, Cardioid, End Fire (Pt1)

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.

210 Comments

  1. Tomi Engdahl says:

    Aux and Groups Explained in less than 11 Minutes
    https://www.youtube.com/watch?v=upZsQOsUBTQ

    Mixer Aux and Groups Explained

    Reply
  2. Tomi Engdahl says:

    Timelapse setup lighting and sound systems
    https://www.youtube.com/watch?v=vfrCGweo6MQ

    Ultra Music Festival 2012 Miami
    https://www.youtube.com/watch?v=yS22JagY3DM

    Reply
  3. Tomi Engdahl says:

    Main Stage Setup – 8 hours in 2 minutes [Nerdapalooza 2013]
    https://www.youtube.com/watch?v=XKDmaZfC4FE

    Main Stage Setup
    8 hours of stage setup work timelapsed into 2 minutes.

    Reply
  4. Tomi Engdahl says:

    Trans-Siberian Orchestra: Inside views on lighting, sound and monitoring
    https://www.youtube.com/watch?v=kdPEMVqbFqw

    Event Elevator talked to Bryan Hartley, Dave Wittman, Tanikawa Michihiro and Scott Fraser about the equipment and setup of the Trans-Siberian Orchestra’s tour in Europe 2014.

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  5. Tomi Engdahl says:

    Tech Tour of Sound and Lighting Booths
    https://www.youtube.com/watch?v=qOTWKFEMdGU

    Hart House Theatre’s Technical Director, Brian Campbell, discusses some finer points concerning the sound a lighting booths in the theatre

    Reply
  6. Tomi Engdahl says:

    Power Distribution
    An absolutely vital but often overlooked aspect of system form and function.
    https://www.prosoundweb.com/channels/live-sound/power_distribution/

    Whether it’s a large festival line array rig or a single loudspeaker on a stick, all audio systems have one thing in common and that’s a need for power. Before starting to design, build, or use any power distribution equipment, the local laws and electric code should be consulted.

    it’s important to check with a local government’s electrical inspectors and ascertain their specific code requirements. Once you’re up on the local codes it’s time to get the juice flowing to the gear.

    Checking Things Over
    The most basic way of getting power to equipment is plugging into a wall outlet at the venue. But this can have consequences if you don’t take the time to check out the outlets and breakers before the gig. The most common problem with wall outlets is that multiple outlets are allowed to be wired into a single breaker, and somebody else can plug into the same circuit as your gear and overload the circuit.

    Before using any outlets in a venue, ask the venue staff if they’re relying on any of them during the event. Even plugging in a coffee pot to one of the circuits has the potential to wreak havoc with a system. Also check with the event planner to see if any other vendors, such as a photographer or videographer, will need power.

    Next, find out what outlets in the venue share a breaker. This is easily accomplished by using a circuit breaker locator.

    Using a circuit breaker locator is much more convenient than flipping breakers trying to locate an outlet because you won’t inadvertently turn off something important.

    Once you’ve identified which outlets are on what circuits, label the outlets and the breaker box so it can be easily reset if a breaker is tripped later. After identifying the outlets that share a circuit, put a piece of gaff tape over any extra outlets to keep others from plugging into them. I find that a piece of white or yellow gaff with the words “Do Not Use” placed over the outlet keeps most from pulling off the tape and plugging in.

    While locating breakers, also test to find out if the outlets are wired correctly. Most folks are familiar with the basic three light “cube” testers that plug into an outlet and can indicate different wiring problems via the three onboard lights. These testers can tell if an outlet is working and if it has a ground, but they cannot tell if an outlet is wired incorrectly with a “Reverse Polarity Bootleg Ground” (RPBG), which can be dangerous.

    Plug Configurations
    Speaking of extension cords, there are a variety of portable power cables used in show business, normally described by their connector type.

    By the way, use only 12 AWG extension cords at gigs. Voltage drop occurs when running longer power cords, and this effect is more pronounced the longer the cable, and the smaller the wire gauge.

    Feeder cables are single conductor runs that consist of a Ground wire, at least one Neutral wire, and one, or more commonly two or three, Hot wires. Feeder cables tie into a generator or Company Panel Disconnect and provide power to a Portable Power Distribution System (a.k.a., PD). These systems are commonly single phase (two Hot wires) or three phase (three Hot wires).

    The NEC says that single conductor supply cables cannot be smaller than 2 AWG and any ground conductor cannot be smaller than 6 AWG.

    The connector for Feeder cables is called a Cam Lock. They can handle 400 amps at 600 volts.

    Concerning Feeder cable, the NEC states: “Only Qualified Personnel may route, connect, energize or de-energize supply services.”

    Electrical accidents are estimated to rank sixth among all causes of work-related deaths in the U.S. and are disproportionately fatal compared to other work-related accident types.

    The branch circuits may include Edison outlets, Twist Lock outlets (popular for equipment that needs more than one Hot conductor) or even multi conductor 6-circuit 19-pin connectors (a.k.a., SOCAPEX, SOCA, or VEAM) that can be used with a multi cable and provide multiple circuits to one location.

    SOCA cables are commonly used to provide six circuits of AC to self-powered line arrays. A fan-out converts the multi-pin into individual circuits or power.

    Wrapping It Up
    Speaking of generators, never use general construction types for production equipment. We require generators that run at a constant voltage and stable frequency while producing as little noise as possible. These type of units are known as “production,” “show,” “entertainment,” “quiet,” or “whisper” generators, and have excellent voltage regulation, usually within 1.5-percent tolerances or better.

    Standard construction type generators are usually not as reliable as show types, and are often quite unstable. (By as much as 25 percent.) This may be O.K. for running power tools on construction sites, but not very good for sensitive electronics like audio equipment.

    Finally, check all power distribution system components before use, and perform preventive maintenance on cables, connectors and components a few times a year.

    If an item is damaged at a show, pull it from service until it can be correctly repaired. Treat electricity with the respect it deserves and the gig will go much more smoothly – and no one gets hurt.

    Reply
  7. Tomi Engdahl says:

    Power & Electrical Safety On Stage
    https://www.soundonsound.com/sound-advice/power-electrical-safety-stage

    Staying safe on stage is more than a matter of simply making sure that willing hands are available before taking a dive. Knowing how to properly handle the mains power we all need is also crucial to performance health…

    Whatever the size, complexity or cost of your live sound rig, one of the first — if not the first — question on your mind when you get to a venue will usually be “where do I plug it in?” Depending on the venue, the answer can vary from a wall-socket behind a plant pot to a dedicated and professionally-installed supply that is reserved for your exclusive use, fully tested and certificated, and for which (with any luck) you’ll have brought an appropriate connector. Whatever you encounter, you’ll need to know some basic rules. When it comes to portable live-sound systems, this means firstly, using a suitable electrical supply; secondly, using suitable equipment; and, thirdly, connecting and using that equipment safely.

    Reply
  8. Tomi Engdahl says:

    EEVblog #840 – Yamaha M3000 Mixing Console Teardown
    https://www.youtube.com/watch?v=tKCjlU7-Vy0

    Dave tears down a monster of a mixing console!
    A Professional 40 channel Yamaha M3000 mixer designed for sound reinforcement and concerts.

    Forum: http://www.eevblog.com/forum/blog/eevblog-840-yamaha-m3000-mixing-console-teardown/

    Reply
  9. Tomi Engdahl says:

    Live Sound Troubleshooting tips with Case Study 01 – How toTroubleshoot
    https://www.youtube.com/watch?v=iS2opCfaMFY

    Part of doing live sound and AV gigs at live events is troubleshooting system problems on the fly. If a problem cannot be solved on-the-fly, then there must be a back-up plan in place.

    In this case, there were two problems at one time, and we were asked to drop by and figure out the problems, which were being reported, but with differing information about what was actually going on.

    How to Set Up a Delayed speaker in a Nightclub – Live Sound System Fill Speakers
    https://www.youtube.com/watch?v=Ouv2COeoQWw

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  10. Tomi Engdahl says:

    Yamaha NS10′s
    https://www.youtube.com/watch?v=1vzteOkxeqQ

    The Yamaha NS10 Story
    How A Hi-fi Speaker Conquered The Studio World
    https://www.soundonsound.com/reviews/yamaha-ns10-story

    Love or hate the Yamaha NS10, this unassuming little speaker has found a place in the studios of many of the world’s top producers. We trace its history, and investigate why a monitor whose sound has been described as “horrible” became an industry standard.

    What is it about the Yamaha NS10? If any piece of pro audio hardware deserves that over-used term “industry standard” it has to be the NS10.

    Reply

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