Let's first learn what a horn magnet does inside a horn; When an electric current enters the stereo, the magnet becomes an "electromagnet." The electric flow direction changes, the current will be affected by the magnetic field, so that the voice coil vibration, driving the voice coil paper basin vibration sound, so as to emit stereo sound.
There are three kinds of speaker magnets on the general speaker: ferrite, Ndfeb, aluminum nickel cobalt. Aluminum-nickel-cobalt magnets are the earliest magnets used in loudspeakers, former tweeters, usually made into internal magnetic speakers. Due to low power, narrow frequency range, processing is not convenient, gradually replaced by NdFeb and ferrite.
The influence of ferrite magnet on the sound quality of horn magnet; Because the magnetic material powder and iron powder for the material of about 1200°C sintering, generally made of external magnetic horn. The price is cheap and cost-effective, the determination is also obvious, the volume is smaller than the power. The performance of NdFeb is relatively the best, and it is more cost-effective than ferrite. It is now the most used magnet on the trumpet magnet, and the magnetic strength of the same volume as ferrite is more than 10 quilt strength of normal ferrite magnetic force. In the case of the same magnet small size, large power, wide frequency range. But ndfeb because of the price of rare earth, more and more expensive, this is the current shortcoming of NdFeb.
In fact, the selection of magnet materials will have some influence on the sound quality. The greater the magnetic flux density, the stronger the thrust on the sound film. The greater the relative power, the higher the sensitivity. High density corpse horn total quality factor Q value will be relatively low, and the response speed to the signal is also fast.
Nor does the bigger the magnet, the louder the sound. The sound quality of the speaker is more or less related to the quality of the magnet, the purchase of detailed design parameters, and we can ask the matching magnet.
