Which campus music bell machine is the best?

Which kind of garden music ringing machine is good [Hangzhou Baosheng Audio Co., Ltd.◆Contact number◆The sound moves the world and is famous all over the world] Hangzhou Baosheng Audio Co., Ltd. is a company integrating R&D, production, sales, program planning, engineering consulting, design, An electroacoustic company that integrates installation, commissioning and after-sales service. Hangzhou Baosheng Audio Co., Ltd. is located in the Huayue Building, No. Huafeng Road, Xiacheng District, Hangzhou. It operates broadcasting, power amplifiers, audio amplifiers, etc. The company adheres to the business philosophy of customer first and enterprising spirit, and adheres to the principle of customer first to provide quality services to our customers. Welcome
We will introduce four types of fault analysis of the speaker system
, silent
The speaker wiring is broken or the frequency divider is abnormal. After the speaker wiring is broken, the speaker unit has no excitation voltage, which will cause a silent failure. Frequency dividers are generally not easy to break, but the voice coil may be broken due to problems such as desoldering of lead joints or short circuit of the frequency dividing capacitor. You can use a multimeter to measure the speaker lead wire solder tab. If the resistance is If it is connected and there is a clicking sound, it means that the voice coil lead is broken. You can solder the wire end, and then solder it with another piece of enameled wire that is similar to the voice coil winding. The speaker lead is broken. Due to the frequent vibration of the speaker cone, the braided wire is easy to break. Sometimes the wire is broken, but the cotton core wire remains connected. This kind of braided wire is not easy to buy, and a slightly longer soft wire can be used to replace the burned voice coil. Use a multimeter to measure the speaker leads. If the resistance values are close and there is no clicking sound, it means the voice coil is burned out. Before replacing the voice coil, you should first clear the debris in the magnetic gap, then carefully put the new voice coil into the magnetic gap, straighten the voice coil, and use strong glue to fix the upper and lower positions of the voice coil while listening, until the voice coil is in the best position. Finally, use strong glue to fill the gap between the voice coil and the paper cone to about half, then seal the dust cover, put the speaker cone upward, and leave it for a day before it can be used normally.
. There is sometimes no sound.
The speaker leads are in poor contact. It is usually caused by moldy breakage of the voice coil lead or poor welding. When the paper cone vibrates frequently, the breakpoint is sometimes connected and sometimes disconnected, resulting in irregular sounding and non-ringing faults.
The voice coil lead is broken or about to be short-circuited.
The power amplifier output jack has poor contact or the speaker input line is disconnected.
, low volume
The speaker performance is poor and the magnetism of the magnet decreases. The sensitivity of the speaker mainly depends on the magnetism of the permanent magnet, the quality of the paper cone and the quality of the assembly process. A ferromagnetic object can be used to touch the magnet, and the magnetic strength of the magnet can be roughly estimated based on the size of the attraction. If the magnetism is too weak, the speaker can only be replaced.
The magnetic core column is loose. When the magnetic core pillar of the speaker is loose, it will be attracted to one side by the magnetic plate, causing the voice coil to be squeezed and hindering normal sound production. During maintenance, you can press the paper cone lightly with your hands. If it cannot be pressed, the voice coil may be pressed by the core column, and it needs to be disassembled and re-glued before it can be used again.
The frequency divider is abnormal. When there is a defective component in the crossover, the signal in the corresponding frequency band is blocked, and the speaker in that frequency band has a small volume failure. You should focus on checking whether the crossover capacitor in parallel with the woofer is short-circuited, and whether the crossover inductor coil in parallel with the tweeter is short-circuited between layers.
, abnormal sound
There are debris in the magnetic gap. If any debris enters the magnetic gap, the voice coil will rub against the debris when vibrating, causing a hoarse sound.
The voice coil rubs the core. The position of the voice coil is incorrect and rubs against the magnetic core, causing sound distortion. During maintenance, the position of the voice coil should be corrected or the voice coil should be replaced.
The paper cone is broken. If the damaged area is large, the paper cone should be replaced. If the damaged area is small, a slightly thinner paper cone or other paper with better toughness can be used to repair it.
The box is defective. If the box is poorly sealed or the decorative grille is not firmly installed, it will cause cracking sounds during playback. In addition, the cabinet plate is too thin, causing resonance and abnormal sound. Business scope includes system design, equipment selection, technical services, and equipment rental for conference audio, lighting, and video.
In various places. Such as multi-functional halls, auditoriums, sports venues, schools, restaurants, shopping malls, families, etc. of various types. Such as multimedia conferences, intelligent central control, simultaneous interpretation, public broadcasting, audio-visual teaching, performing arts slow rocking bar, set-top box sharing, audio and video recording, video surveillance, integrated wiring, electric monogram, home audio, smart home, etc.
Audio If you have any questions, look for the treasure sound! Design by well-known experts, authoritative technical services, scientific equipment selection, and professional instrument debugging.
The advantage of Zhou Baosheng Audio lies in its excellent execution ability and attention to details. We refuse to stick to conventional methods and perspectives. We are a group of people who love art. And through continuous repeated deliberation and exploration, we are committed to creating Yiying's unique style and fine services, using our professional technology and unique creativity to combine with your ideas to form an eternal collection. The design department advocates creativity, authenticity, and rationality. The project department pursues smoothness and perfection. The production department adheres to strictness, details, and safety. If you have any other questions, you can directly call our company's customer service and we will sincerely answer your relevant questions.
Zhou Baosheng Audio Co., Ltd.
Telephone number
Address: Huayue Building, No. Huafeng Road, Xiacheng District, Hangzhou
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