Development of Line Array Speaker System

The development basis of the line array speaker system is the development of theoretical research and the progress of manufacturing technology. The requirements for the sound reinforcement function and the promotion of the market are the driving force for the development of line array speakers.

Here is the content list:

• Early difficulties

• The development history of the line array speaker system

Early difficulties

As early as 1957, Olson pointed out that Line Arrays are especially suitable for long-distance sound radiation. This is because the line array can provide very good vertical coverage directivity to achieve good acoustic effects.

In the 1970s, there were often large-scale rock music performances, and some performances had audiences of hundreds of thousands. Sound reinforcement is a big problem. At that time, the speakers adopted the "sound wall" method. Dozens or even hundreds of speakers were stacked horizontally and vertically to form a "sound wall", and horn-loaded speakers were very popular. When the power of tens of thousands of watts is turned on, it feels like "the earth is shaking and the mountains are shaking". But people quickly discovered its shortcomings, not only needing too many speakers but also interfering with each other between the speakers, making the sound quality worse. The radiation directivity and its coverage are not ideal, and the installation and debugging are quite troublesome. At the European AES Conference in 1983, Philips introduced the concept of a Bessel function matrix and used a weighting factor to solve the interference problem. But for some reason, this approach was not popularized.

The development history of the line array speaker system

Since then, various companies have been working on high-power, long-range sound reinforcement systems. People noticed the sound column, the sound column has a narrow vertical directivity, but it is not powerful enough, and the projection is not far enough.

On this basis, a line array speaker system emerged. The line array to loudspeaker system has developed rapidly because of its considerable output power, long radiation distance, large sound field coverage, controllable directivity characteristics, and convenient and quick installation. In 1993, L-Acoustics, a small audio company in the suburbs of Paris, France, first launched the V-DOSC line array speaker system. They had already started to develop it in the 1980s. The system is gradually welcomed and valued by users. Afterward, various audio companies saw the market demand and good business opportunities, and followed up one after another, developing and producing their line array speaker system.

The Line Array speaker system of each company has different names, but the principles and characteristics are similar. Each of these products is unconventional or has its advantages in terms of structure, box technology, and unit selection. It not only avoids the troubles of patents, imitation, plagiarism, etc. but also becomes a school of its own, becoming the company's selling point and a symbol of promoting the company's technical strength.

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