Take you to understand the maintenance of KTV professional audio equipment!Speaker bar Vendor

　　Take you to understand the maintenance of KTV professional audio equipment

　　1. The sequence of turning on and off the equipment. The sequence of turning on and off the equipment is very important, and it is necessary to pay enough attention to protect the audio equipment effectively. Due to the extremely strong inrush current at the wrong switching time, the speaker speaker emits a strong "horn" sound in an instant, which may completely burn the speaker of the speaker.

　　The correct power-on sequence is: plug-in board power supply -> computer -> wireless microphone -> digital pre-amplifier -> power amplifier;

　　The shutdown sequence is reversed: power amplifier -> digital preamp -> wireless microphone -> computer -> power strip.

　　2. Precautions for digital pre-stage. The digital front-end must be turned on and off normally, otherwise it may cause the original preset program data to be lost or the program error may cause a change in function, and in severe cases, the digital front-end may crash without operating. When the computer is connected to the digital pre-stage adjustment program, when adjusting the balance of the music and the microphone, you must be cautious if you perform the improvement process, because the power received by the speaker of the 3db device will double! Improper progress can cause equipment damage. This has been a lesson learned. Moreover, it is not recommended to improve the original "maximum volume" limit.

　　3. Daily adjustment of digital pre-stage. The digital pre-stage has been pre-adjusted to the program, and is encrypted and locked to prevent misoperation and change the original use results. There are "music volume", "microphone volume" and "acting volume" that can be operated in operation. For example, if a customer feels that the effect is too large in operation, you can turn the "acting volume" counterclockwise to adjust to the customer's satisfaction.

　　4. Sudden howling control. All professional entertainment audio systems generally do not show howling problems after careful adjustment, but it is not ruled out that they may show abnormal sudden howling: it may be that the guest is too close to the speaker, cover the microphone with your hand, and place the microphone directly in front of the speaker Caused. Please kindly remind guests in time to avoid damage to the equipment. Please close the microphone in time when the guests in the private room dance the DISCO. If it is a wireless microphone, please close it in time and keep it properly.

　　5. KTV professional audio microphone volume control. There are two main points to pay attention to when controlling the microphone volume: First, it is necessary to face the microphone while singing, and to be closer, generally 0.5 to 2cm away is appropriate. Being too far away or not being right will result in "not enough input", especially the bass loss is relatively large, the vocals coming out are relatively small and sharp, at this time the guests will often complain and sing tired, which requires the service staff to be friendly and skillful in time The guests are advised to use the microphone correctly. Second, there are often guests yelling at the microphone when drunk, far exceeding the original maximum microphone volume standard, which requires the service staff to reduce the share control on the digital front-end in time. When the guests sing, the music should not cover the vocals of the singing. Generally speaking, the microphone and music volume share 6:4 to highlight the singing of the guests. If the music is too loud, the guests will feel that the microphone sound is small and the singing is laborious. Please help the guests to adjust the music volume in time (as far as possible, use the volume adjustment on the computer's song order interface).

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