Conference audio equipment rental

Discuss audio equipment rental [Hangzhou Baosheng Audio Co., Ltd. ◆ Contact number ◆ Use audio to restore the reality of music] Hangzhou Baosheng Audio Co., Ltd. is specialized in R&D, production, and sales of conference audio, stage audio/public broadcasting/wireless microphones/conferences Systemic isosonic equipment, with complete production equipment, strong technical force, rich product varieties, stable and reliable quality, independent development, has a good reputation for stable product quality and excellent after-sales service. Entering the new century, market competition has become increasingly intense, and products have shifted from single price competition to simultaneous competition on quality and price. The market expands from domestic to international markets. In order to meet the needs of competition, the company strengthens quality management, improves business policies, regards customer satisfaction as the company's eternal purpose, and has a complete and scientific quality management system. Hangzhou Baosheng Audio Co., Ltd.'s integrity, strength and product quality have been recognized by the industry. Friends from all walks of life are welcome to visit Hangzhou Baosheng Audio Co., Ltd. for visit, guidance and business negotiation.
Now we will introduce the four fault analysis of the speaker system
、Silent
The wiring of the silent speaker 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, too thin the cabinet plate will lead to resonance and abnormal sound. Business scope: theaters, theaters, stage machinery, lighting curtains, sports venues, multi-functional halls, lecture halls, conference rooms, public broadcasting, background music and other engineering projects, and provide professional design, installation, commissioning, and after-sales integrated services.
The company insists on focusing on customers and implements a service system of design, installation, commissioning, technical training and lifelong maintenance. In the service, it has always been able to win the trust of customers with technology. We always take continuous customer satisfaction as our quality goal. Chuangsheng Audiovisual will move forward along the road of prosperous cultural market, contribute to the promotion of modern audio, and create a better tomorrow with customers. If you want to know more, you can call our customer service hotline and we will answer your questions one by one. Thank you.
Zhou Baosheng Audio Co., Ltd.
Contact person: Manager Xu
Mobile phone
Address: Huayue Building, No. Huafeng Road, Xiacheng District, Hangzhou
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