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Electroacoustics
Electroacoustic components use the electromagnetic induction to realize the conversion of electricity and sound. Permanent magnet is the most important part of the electroacoustic products, especially sintered NdFeB and hard ferrite which are the most widely used.
The micro loudspeaker and receiver in the smart mobile phones
Smart mobile phone has become an indispensable part of people's life and are becoming lighter and thinner. For the loudspeaker and receiver, smaller size and higher sound quality have come to be the general market trend. Therefore, the sintered NdFeB with high remanence and high intrinsic coercivity has been widely used.
Technical requirements of the magnets in the micro loudspeaker and receiver
Small loudspeakers in headphones, tablet notebook and flat TV
Due to their small size and light weight, the sintered NdFeB has been widely used. The technical requirements vary depending on the different working conditions.
Due to their small size and light weight, the sintered NdFeB has been widely used. The technical requirements vary depending on the different working conditions.
Car audio, Stage sound, High class HI-FI, Bluetooth Audio
For the stage sound system and car audio system with big sizes, they usually use the permanent ferrite magnet with the shapes of round and rings. While sintered NdFeB are mainly used in the high class HI-FI and bluetooth audio. With the increasing demand of the sound quality, the sintered NdFeB has gradually taken the place of the large and heavy permanent ferrite.
