The Past and Present of Line Array

Line Arrays are popular for their unique sound radiation characteristics. Line Array has the advantages of a uniform sound field, long radiation distance, large output power, and controllable directivity, and has been widely used at home and abroad in the past ten years. The research on basic theory, the development of manufacturing technology, the actual sound reinforcement demand, and the promotion of the market have promoted the rapid development of line array.

Here is the content list:

• History of Line Arrays

• Two types of line array

History of Line Arrays

The history of the Line Array has been more than 80 years. As early as 1930, the paper of Wolfe and Malter analyzed the directivity characteristics of point sound source, line sound source, curved sound source, and plane sound source. Physicists represented by American acoustic engineer Olson published the coupling theorem and the linear radiation theorem in 1957. Olson et al. found that the sound radiator in the vertical array has a directivity enhancement effect in the vertical plane in acoustic research. The radiation theory of Line Arrays has promoted the development of line arrays in many application fields and achieved great success. Domestic research institutions have also done a lot of research, and there are many incisive expositions.

Olson's definition of a line array: a line array is a group of sound radiation units that are closely arranged in a straight line with equal amplitudes and the same phase.

Two types of line array

J-type Line Array: This line array is a combination of straight line and arc type. Its formation comes from the scene of the performance. To take care of the spectators below the stands, turn the Line Array below appropriately. It has the advantages of uniform arc radiation, and at the same time has the advantage of less attenuation of linear radiation with distance. But at the same time, it also brings disadvantages. The discontinuity at the turning point will bring corresponding problems.

Progressive line array: Progressive line array is the improvement and development of a J-type line array. The progressive line array is curved from top to bottom, and there is no strict straight line part. But unlike the arc array, it is not a fixed radius of curvature, or it is composed of infinitely many different curvature radii. The result is a more uniform directivity.

Line Array is well applied because of its unique working principle and radiation mode.

Guangzhou Xinhe Audio Equipment Co. Ltd., www.xinhesound.com, is a dynamic, creative, experienced, and responsible team. Everyone on the team is committed to providing the best products and services to our customers. Our company has developed a wide range of Line Array which are tested extensively before leaving the factory to ensure quality. As a professional manufacturer, we specialize in manufacturing the highest quality Line Array. We have conducted a large number of tests before leaving the factory to ensure the quality. You can consider using our cost-effective products. Thank you for your time! We are looking forward you to coming to contact us!