Precautions about the dark installation of speakers: 

1. The installation hole reserved in advance should be large enough, because the installation Angle of the speaker should also be considered. 

2. If installed in the ceiling, there are two ways to install the speaker system.The first is to install the sound box in the echo cover of the ceiling, to avoid the sound energy attenuation caused by sound escape. Echo covers should be made of hardwood material and should be firmly fixed to avoid damaging sound quality by resonance.Another way is to be placed parallel to the ceiling, and the sound is directly into the audience at this moment. This way is more suitable for the venue sound supply system, bass speaker system and decentralized background sound supply system. 

3. The mask used in the dark installation should be well sound permeable.

4. The best decorative piece of the wedge width should be less than one fifth of the radius of the sound box, and the opening rate of the lattice piece should be> =75% to facilitate the spread of sound. 

5. Compared with open decoration, dark decoration can better avoid damaging the decoration style of the hall room, but because of the complex installation, improper treatment will lead to sound attenuation and affect the effect.And in the adjustment and maintenance is also more complicated and troublesome. 

"Listen to the good voice and gather positive energy!"Guangdong Wanchang Technology Industrial Co., Ltd. is a collection of product research and development, production, sales, engineering projects in one of the modern audio enterprise, its jazz dragon sound for 14 consecutive years won the top ten professional sound expansion system (national) brand title.Adhering to 18 years of industry experience to provide users with quality products and intimate service, the company was awarded the high-tech enterprise unit and municipal technology research and development center certificate by Guangdong Provincial Department of Science and Technology.Market-oriented and project-centered, the company's product business involves professional sound, lighting and stage design, educational equipment, intelligent broadcasting, square dance sound, home theater and other fields.