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What is a line array speaker? What are the advantages of line array speakers?

publisherSinbosen

time2022/04/28

Line array speakers have gradually become the protagonist of sound reinforcement speakers, and they are found in many large-scale venues. Do you know what a line array speaker is? Why use it on large occasions? The line array speaker system has average coverage and good dispersion; large sound pressure level; strong directivity...

As the time goes, line array speakers have gradually become the protagonist of sound reinforcement speakers. In many large stadiums and large performance venues in the world, line array speaker systems - line array sound systems have appeared. Line array speakers can also be used in theaters, multi-function halls, conference rooms, indoor and outdoor large-scale evening parties, performing arts scenes, wedding performances, lecture halls, large stadiums, etc.

What is a line array speaker?

A line array speaker is a group of radiating units that are arranged in a straight line up and down and spaced as closely as possible, and have the same amplitude and phase. Although it is arranged in a straight line, the angle of the coverage arrangement is different, and the linear array can provide a very good directivity of the vertical coverage to obtain a good sound effect. In performances or long-distance sound reinforcement in large spaces, the number of listeners is often tens of thousands or more, and the power of the current pair of speakers is far from the power required for listening. Therefore, in such a sound reinforcement place, several pairs or more speakers were often used to form a speaker wall, which is called a speaker matrix. But such a matrix, because of the phase problem, some frequencies in the speaker will interfere. Seriously affect the restoration of the sound. Therefore, the line array speaker was born.

Advantages of line array speakers

1. Its coverage is average and the dispersion is good. Because of the characteristics of the linear array, the vertical directivity of the main axis is a narrow beam, and the energy superposition can radiate long-distance. And the lower end of the zigzag part of the linear column covers the near area, forming a coverage from near to far.

2. The improvement of the linear array loudspeaker is more in line with the requirements of technology, craftsmanship and installation.

3. The sound pressure level is large. The directivity of the linear array becomes sharper as the frequency decreases. When it reaches a certain frequency, such as 2kHz, the directivity is radial, that is, the directivity diagram presents lobes. At this time, the sound wave generator formed by the high-frequency loudspeaker will work, so that the high frequency directivity is superimposed and enhanced.

4. Strong directivity. The difference between the far and near fields is small.

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