Wenchang public radio, background music broadcasting system installation

Wenchang public radio, background music broadcasting system installation Hainan Liansheng weak construction team: has a wealth of experience in the construction of the weak, to undertake a variety of weak construction, cabling, installation and commissioning. With strength and rich experience in construction, have more professional knowledge, and strong technical, professional undertaking: monitoring, alarm, network, building intercom, access control, such as construction, cabling, installation and commissioning. Public Broadcasting (Public Address, called PA): self-managed by the use of units within the scope of this unit for sound broadcasting public service. Used for business radio, broadcasting and emergency broadcasting background. Public Broadcasting System features folding Edit this paragraph background music and emergency broadcasting Back ground music called BGM), its main role is to cover up the noise and create a relaxed and harmonious atmosphere, if listening intently listening to people, you can not distinguish the sound source position, the volume is small, a relaxed atmosphere and create music. Therefore, the effect of background music are the two psychological conceal ambient noise, and the second is to create an atmosphere of indoor environment to adapt. Public broadcasting system, including background music and emergency broadcast function, usually together, it is an object of public places, in the hallway, the elevator door, the elevator car, hall, shopping malls, restaurants, bars, banquet halls, community gardens, etc. installed Combined sound column or distributed speaker box, usually play background music, when an emergency occurs, the strong cut for emergency broadcasts, and use it to direct the evacuation. Folding control public broadcasting system control functions more as constituency radio and all call broadcast, forced switching and priority broadcasting function. The public address system speaker load more dispersed, long transmission lines. To reduce transmission line losses are generally used 70V or 100V constant voltage, high impedance delivery. Sound pressure do not ask, mids and treble sound to the main. This system is used in a broadcast microphone and speaker to the public broadcasting generally not at the same room, so silent feedback problems. Contact: 13976640562 Miss Zhang Company Name: Hainan Liansheng Science and Technology Development Co., Ltd. Address: Room pretty good Hainan Haikou Meilan District Building, 707 diligent way