The birth of stadiums and gymnasiums has brought unprecedented opportunities for the audio and video industry. Audio and video systems will be widely used in sports events, national fitness, performances, it has a promising prospect. But the sound amplification system in large-scale venues often faces many problems, such as long reverberation time, high ambient noise, speech clarity below requirement. And most of the current stadium venues have not only amplification for sports events but also performances, and in the meantime conference amplification system to build in, making project engineering relatively complicated.  

Longjoin has rich experience in the design of sound reinforcement system for large-scale stadiums and gymnasiums. It has designed many stadiums domestically thus gained much successful experience. its outstanding technical support team, combined with proprietary voice simulation audition system and sound field analysis software, can predict potential problems during design process, it can also simulate various sound fields in order to modify design scheme, to achieve desired results. Longjoin projects have won favorable comments from the industry.