The sound reinforcement system is a system that amplifies the voice of the performer in real-time and transmits it to the listener. Performers and listeners are usually in the same acoustic environment. Line Array must meet the needs of users during the design process, and design the sound structure so that it can cover the entire venue step by step and clearly.

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.

From a macro point of view, stage professional speaker refers to the technology that uses diversified technical means to amplify stage sound, and reproduce and restore stage performance and plot in the form of sound. From a micro level, there is a strong internal connection between a professional speaker on stage and the performance of stage art. The stage professional speaker serves audiences and performers and strengthens and sublimates the performance of stage art through the application of superb debugging technology and innovative sound effects.

Karaoke, a form of entertainment, has been developed for more than 20 years since it was introduced to mainland China from Japan in the late 1980s. Especially after the business form of mass-market karaoke was introduced from Taiwan to the mainland more than 10 years ago, the momentum of development has been particularly rapid. At present, in the bustling areas of almost every city, you can see the lively scenes of mass-market KTV business establishments. With the development of technology, karaoke also adopts more and more advanced professional speakers.

A perfect performance is not only a visual feast but also an auditory feast. In the stage space, the visual and auditory senses complement each other, so that the audience can fully experience the beauty of art, produce aesthetic pleasure, and gain. With the continuous development of stage control technology, professional speaker sound simulation manufacturing methods are also constantly updated. As a professional speaker and sound design operator, in art practice, he must strengthen his study, broaden his horizons, improve his business, and keep up with the development of the times.