Electrical wiring

Electrical wiring Audio Signals   Balanced Vs Unbalanced Audio   Which way do we go? This is a good question, of which the answer lies in a couple of other questions, listed below. The obvious answer is which ever method gets you the clearest audio. Because...

Sound System Use-Cases

Sound System use-cases Sound system use-cases Retail and shopping malls DOWNLOAD Public Transport DOWNLOAD Education DOWNLOAD Tourism DOWNLOAD Cultural Venues DOWNLOAD Healthcare DOWNLOAD Industrial facilities DOWNLOAD Government DOWNLOAD Exhibition centers DOWNLOAD...

Power Supply Equipment (PSE) Calculation

Power Supply Equipment (PSE) Calculation Power Supply Equipment (PSE) Calculation   This worksheet is used to calculate the Power Supply Equipment (PSE) (EN54-4) for our VAS Systems.The calculation is made to have 12 hours and 5mn in standby mode and 5mn in...

Summary of EN54 and NF standards

Summary of EN54 and NF standards Summary of EN54 and NF standards   The purpose of a fire safety system is to contribute to the safety of people and, subsequently, to that of property in establishments receiving public (ERP). To achieve this, it is essential to...

Requirements of the new EN 54-24 standard

Requirements of the new EN 54-24 Standard Requirements of the new EN 54-24 standard   – Connection of the power is to be performed within the speaker.- We should not have direct access to various settings (hidden screws, adjustment within the product).- The...

Accoustics basics : PA calculation use-case

Acoustics basics : PA calculation use-case Acoustic basics   PA calculation example:   For example, a outside space. This outdoor area is 10m wide and 32m long. The background of this space is 65 dB. The sound projector used in the first calculation is an...

Installation Advice & Information

Installation Advice & Information Professional 100v Line Loudspeakers Majorcom provide ranges of professional installation loudspeakers for indoor and outdoor PA applications.Designed to achieve optimum voice/BGM clarity in a wide range of commercial...

How to measure a speaker line impedance

How to measure a speaker line impedance Therefore in 100V Line (U = 100) if an impedance (Z or R) of 100 Ohm (R = 100) was measured, the power is: 100W An impedance meter is an absolute necessity for all installers and maintainers. It helps to know the load or power...

Omnidirectionnal Speakers

Omnidirectionnal Speakers Omnidirectionality and broad coverage   • Recognized since 1992 and protected by an international patent, so far the omnidirectional speakers created by MAJORCOM have not been equalled by any other speaker as regards to fitting large...

Calculate the correct diameter of your speaker cables

Calculate the correct diameter of your speaker cables MAJORCOM Experts in the field of PA and VA systems in France and internationally for the past 50 years. Discover our public address solutions Discover our professional sound solutions Discover our voice alarm...

Induction loop systems

INDUCTION LOOP SYSTEMS What is an audio-frequency induction loop system? Audio-frequency induction loop systems allow hearing impaired people to hear more clearly. Most hearing aids have a ‘T’ or ‘MT’ switch which allows them to pick up the electromagnetic field...

Accoustics basics (Fundamentals)

Acoustics basics (Fundamentals) Sound acoustics   1. Concept of acoustics:    GLOSSARY : Sound : A sound is a pressure variation around the atmospheric pressure expressed in Pascal (Pa).Human ear is sensitive from 20µPa to 200Pa. A sound wave is propagated...