Modern Line Arrays use separate drivers for the high-frequency, mid-frequency, and low-frequency passbands. For a line source to work, the drivers in each passband need to be aligned. Therefore, each enclosure must be designed to fit tightly together to form a column of high-frequency, midrange, and low-frequency speaker drivers.

The development of professional audio is changing with each passing day, and Line Array System has become the mainstream of the market in just a few years, and it shines brilliantly in fixed installation projects and various performances.

The term "Line Array​" is used to describe a loudspeaker system that has multiple loudspeaker units with the same characteristics arranged vertically to simulate a linear sound source. Sound propagating from line array speakers has very little dispersion in the vertical plane compared to standard loudspeakers operating as points, sources where the sound travels with wide dispersion angles in the horizontal and vertical planes. Therefore, the attenuation of sound pressure with distance is small.

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.

The line array speaker system is composed of a row of sound radiation units arranged in a straight line and spaced very small from each other. These acoustic radiating elements are equal in phase and amplitude.

In the past two decades, the optimization application and development work of Line Array​ has entered a period of rapid development. Many experts and scholars have published a large number of documents on Line Array.