1. Horn unit. The main structure of the horn unit is composed of choke ring, sound basin, fixed core support, magnetic circuit (including magnet, t iron and voice coil), basin frame, etc. except that the voice coil is burned out in abnormal use, it is mainly choke ring and sound basin. Choke: the life cycle of choke material is selvage, plastic plastic composite edge, silicone rubber edge, foam edge. The foam edge is easy to damage. Due to the use of the foam edge horn unit, the fracture is almost scrapped within 3-5 years of normal use. Of course, the life of foam edge is different from that of material and process. Secondly, we should count the silicone rubber edge. Its disadvantage is that if the process is improper and the time is long, it is easy to age and produce inert deformation and moire, which will affect the use. Nowadays, silicone rubber chokes and rubber plastic chokes are widely used in speaker manufacturers. The choke ring that greatly prolongs the service life of the loudspeaker unit is the cloth edge choke ring. Most of it is used in professional loudspeakers, but it is also useful in civil products.
2. Sound basin. In the use of loudspeaker unit, the sound basin adopts a variety of material forms: its bulletproof cloth, fiber woven basin, PP basin, mica polypropylene basin and aluminum magnesium alloy basin have little problems, mainly paper-based or paper-based composite basin. Due to the existence of protein fiber, it is almost inevitable to be eroded by mold in the humid areas of South China, that is, our common mold spots and white spots make people headache. This kind of sound basin is favored by the speaker factory because of its soft and honest timbre. So how to maintain the problem, especially the maintenance of high gear horn, has attracted the attention of enthusiasts.
3. Pot rack: at present, there are two kinds of widely colored pot racks, namely thin iron stamping pot rack and aluminum pot rack. Of course, there are other materials, such as nylon plastic pot rack. Most of the imported and domestic high-grade horn units use aluminum basin frame, which has high strength and superior seismic performance, which is much better than the ordinary stamping iron basin frame. But small caliber units don't matter. There are also centering brackets (i.e. yellow board) which are cloth and linen products produced by special processes. As long as they don't degumm, there's nothing to say.
4. Magnet: there is almost no need to maintain the magnet, but it will lose magnetism a little over time, but it has little impact on the overall performance. At most, the sensitivity decreases a little, but it is only very small. The antimagnetic horn is much better than the ordinary case without antimagnetism.
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