Features Of The Line Array Speaker System

In recent years, the line array loudspeaker system has been widely used in large-scale sound reinforcement places due to its unique advantages. The line array loudspeaker system is produced in response to market demand and is also a product of high technology, so it has attracted people's attention. The line array speaker system has the following characteristics:

1. Line Array Speaker Unit Boxes Are Arranged Regularly

The line array loudspeaker system, often used as a core component of a modern conference room audio system, is composed of a row of unit boxes arranged according to specific acoustic principles. These units can be configured in a straight line or in a “J” shape depending on the sound field requirements. The number of unit boxes is determined by the coverage needs of the sound reinforcement environment, especially in large-scale conference room audio system applications, but must also meet the fundamental criteria for forming an effective line array. Specifically, the overall length of the array should be at least half the wavelength of the radiated sound wave. In addition, each unit box must meet strict performance standards, including radiated sound power, frequency response, horizontal directivity, distortion control, and linear phase characteristics, all of which are essential for delivering clear and consistent audio in a high-performance conference room audio system.

2. Line Array Speakers Have High Power And Long Projection Distance

For example, the low-frequency unit in the unit box of EAW KF761 has a power of 1200W and a sensitivity of 96dB; an intermediate frequency unit has a power of 500W and a sensitivity of 107dB; a high-frequency unit has a power of 150W and a sensitivity of 112dB. After the unit boxes form an array, due to the interaction between the unit boxes, the radiation impedance of the loudspeaker is improved and the radiation efficiency is improved. Therefore, it is easy to use a system of professional line array speakers as a sound source to obtain a sound pressure level of more than 100dB at a distance of 100m.

3. The Sound Field Covered By The Line Array Speaker Is Relatively Uniform

The vertical directivity of the digitally steerable line array is very sharp, generally around 10°, and the narrowest can reach 3°. The radiated sound beam is narrow, the direct sound reaching the corresponding audience area is relatively strong, the radiation distance is relatively long, and the change of sound pressure level in a large area is relatively small. Due to the side lobe control of the line array, the overlapping area of the radiation sound field is relatively small, and the interference surface is small. The area where the direct sound is dominant, has a good sense of hearing, clear sound, and high resolution.