We need to determine the type of speakers according to your needs. Now there are home, professional, and broadcast audio systems. If you want to make a conference room, it is easy to use professional, and home is not suitable for conference rooms. Broadcasting The sound quality of the class is poor.

Secondly, the conference audio should ensure that your room should be sound-absorbing, such as making some sound-absorbing materials on the walls, laying some carpets on the floor, etc., to ensure that the reflected sound of the room is reduced, the reverberation is reduced, and the possibility of howling can also be reduced.

Third, the conference audio determines the sound pressure level to be achieved, and the number and characteristics of the speakers. According to the national standard GYJ25-86 "Acoustic Characteristics Index of Hall Sound Reinforcement System", the sound pressure level of the first-level banquet hall and conference room should be greater than or equal to 103dB, and the second-level sound pressure level should be greater than or equal to 98dB. The power is about 600--800W. That is to say, if you want to buy four professional speakers, two of them can be distributed in the front and rear. The best way to hoist them is to use ground brackets. Each speaker has 400W---600W, and the sensitivity of each speaker is 98---103dB. In this way, your sound field requirements can be met. If the sound field is required to be uniform, two more speakers with the same index can be added and placed on both sides of the middle position.

Fourth, professional speakers need professional equipment to use, first of all: mixer; conference microphone (conference microphone with host can be selected, which can be pre-amplified); hand-held wireless or wired microphone (for host). Choose according to the number of microphones as appropriate. If it is just a conference, there are 8-channel and 10-channel mixers. Secondly, there must be a power amplifier. It is best to buy two power amplifiers to push four speakers respectively, and three to push six speakers. If the power and impedance are properly matched, two power amplifiers can also push six speakers. See what brand the owner wants to buy.

If the conference audio has sufficient funds, you can also add equalizers, effects, feedback suppressors, compressors, and so on. If you are too troublesome, you can directly add an equalizer and a digital processor. Z is simple, then the microphone---mixer (with effects)---power amplifier---speaker can be connected. The price of the full set is also high and low, the ordinary point is 8000---12000. As for the brand, I think it's up to you to audition yourself, try the vocals, and listen to the clarity of the language amplification.

, Reasonable equipment for professional speakers and power amplifiers