Which campus radio amplifier is the best?

Which garden radio amplifier is the best? [Hangzhou Baosheng Audio Co., Ltd. ◆Contact number ◆ Baosheng’s sound pleases my heart] Hangzhou Baosheng Audio Co., Ltd. is a professional office equipment, network, audio conference distributor and system integrator, serving the financial industry Provide professional solutions and services to enterprises, education and other industries. Baosheng Audio is currently committed to the development, production, distribution, integration, consulting and services of information technology products. It has a complete distribution system in the southeast region. In terms of agency distribution business, Baosheng Audio is the general agent for many brands in the southeast region. In terms of display technology application systems and system integration, it mainly provides professional solutions and services for financial companies, education, military and government agencies, enterprises and other industries.
In the audio system, several common fault problems are briefly analyzed below
The noise problem is mainly manifested in the speaker having noise, noise or current sound when there is no sound source.
The problem of howling is mainly manifested when the microphone gain cannot be increased or the volume cannot be increased, resulting in acoustic feedback and howling.
Yes, customers reported this problem to us. We clicked, clicked, and quickly ran to the customer's place to take a look. Well, the system had been set up, the wires were soldered without any problems, the sound could be played, and there were no problems with the sound phase. Okay, so how do we solve these two problems raised by customers? Let’s do it one by one and solve the noise problem first.
The first step is to eliminate external factors.
There are only three external reasons for current sound or noise problems: external sound source equipment, excessive noise in the on-site environment and problems with the system power supply. We eliminated them one by one. We first removed the external sound source, then turned off all microphones that were turned on at the scene to block the pickup of ambient noise. Then we checked whether this power supply shared a power supply with other large power systems. Because if it shares a power supply with other large-scale power systems, its use will greatly affect the change of current, thus producing current sound.
The second step is to gradually eliminate various problems in the internal system
In this step, I sorted out my commonly used methods
Small system method
In a system, usually It is composed of pre-stage equipment, peripheral equipment and power-stage equipment. We first remove all the peripheral equipment, such as the mixer connected to the power amplifier, and the power amplifier connected to the speakers, to see if there is any noise. If there is still noise, we will remove the mixer. If there is still, it is the background noise of the power amplifier. It's a quality issue, so we can only replace it, because after all, we are not repairing equipment, haha. If not, it means the mixer settings are incorrect or there is a quality problem. Check whether the gain is adjusted too high. If there is no problem with the small system, then there must be a problem with the discarded peripherals. At this time, we need to add the peripheral equipment one by one, and then check in detail whether it is a device setting problem or a quality problem. For example, whether the noise reducer has been adjusted well, whether the equalizer gain is too large, etc.
Replacement method
In many projects, there may be more than one system, and there may be two or more of the same equipment. We will If the equipment is found to be faulty, replace it with a device that has been debugged and has no problems in other conference rooms. With the same settings, if the problem is solved, it is an equipment problem. If the problem still exists, it means that there are other problems in the system that you have not discovered yet, and we need to check again carefully.
Instrument measurement method
Use a multimeter, level meter and other measuring instruments to measure the speaker impedance and whether the output level of the step-by-step device is normal.
After the above steps and methods, I believe that the noise problem existing in the system will be solved soon.
Three steps to solve the howling problem. This problem occurs because the sound from the speaker is transmitted to the microphone to form a loop, and howling occurs after multiple amplifications. A good way is to physically separate the path between the two. For example, when we choose a microphone, try to use a directional one instead of a non-directional (omnidirectional) one. During use, try not to face the microphone directly. listening to the speaker. However, since there are multiple microphones and the placement of the speakers is fixed and cannot be changed, we can only use peripheral equipment to complete this function, such as feedback suppressors. By finding the howling point, we can adjust the corresponding position on the equalizer. attenuation at the frequency point.
Service scope
Acoustic decoration and supporting facilities for professional studios, recording studios, conference rooms, multi-functional halls, lecture halls, concert halls, gymnasiums, theaters, dance halls, multimedia classrooms, audition rooms and other halls Project design and construction
Engineering design and installation of stage, conference, film and television lighting systems for the above types of halls
Design, sales and installation of finished sound-absorbing panels and sound insulation components
Audio and video systems Integration and installation of various radio, film and television equipment sales
Zhou Baosheng Audio Company specializes in professional audio projects such as conference audio, hotel audio engineering, stage audio engineering, etc. It provides conference-specific audio suitable for various places and has completed a large number of For sound engineering, please call us for more information about sound engineering and conference sound systems. We take integrity, quality and affordability as our tenets to better serve our customers.
Zhou Baosheng Audio Co., Ltd.
Contact person: Manager Xu
Mobile phone
Address: Huayue Building, No. Huafeng Road, Xiacheng District, Hangzhou
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