What kind of magnet is used for the speaker?
There’s a magnet on the speaker, and I think you all know what the magnet does on the speaker.This estimate can be said to be a few, Qianglian magnetic(magnet manufacturer) help to share with you about the loudspeaker magnet.
1. What is a horn magnet?
In simple terms, the magnet in the speaker device is called the horn magnet, or the speaker magnet.
2. What does the magnet do on the speaker?
Loudspeaker paper cone with a coil (called voice coil), audio signal to the voice coil, a current, current intensity, the direction of change, the position of voice coil will change in the magnetic field, voice coil vibration, will drive air vibration, the paper cone vibration, sound the horn.
3. The larger the speaker magnet is, the louder it is.
Lots of people answered and said, surely it must be, actually otherwise, the sound of the horn is not magnet the bigger the better, because the magnet high density, low density, strong magnetic, weak magnetic, such as categories, if it is a low density of weak magnet horn, its effect is certainly not good, big volume and is not convenient to install.
What kind of magnet does the speaker (sound) use?
Magnet horns are usually made of ferrite magnets and ndfeb permanent magnets.Ferrite permanent magnet is mainly used for medium/headset, ndfeb permanent magnets used in high-end headphones, the sound quality is very good, good elasticity, good details, vocal sound quality, sound field positioning accuracy.

Some relatively problems:
1. Today’s shanzhai units are all made of junk magnets.
2.  Personal magnetism is not proportional to the size of magnetic steel, the magnet is different!The magnetic force control is good, but there should be a balance!
3. In a word, the size of the speaker’s magnet is determined by the design of the horn, not the cost of the magnet.
4. Not bigger is better, it is the material problem of magnetic steel, should suit the design parameter of horn, you see to use strong magnetic horn magnetic steel to have how big
5. Main specifications of Ndfeb magnet in horn are: φ 6 * 1mm,φ 6 * 1.5mm , φ 6 * 5mm, φ6.5 * 1.5mm, φ6.5*φ 2 *1.5mm, φ12 * 1.5mm , φ12.5 * 1.2mm, etc.,
6. The coating of the horn magnet: generally choose galvanizing, according to nvironmental protection requirement different, also can carry on environmental protection zinc and so on electroplating.