Widely used for TV audio, automotive audio, KTV audio, cinema audio, square and venue speakers. The machining tolerance are mostly within +/-0.05mm. Most of them have the material grade from N grade/M grade till to SH grade. The magnetic energy of neodymium iron boron magnets of the same volume is several times higher than that of common horn ferrite magnets, Its advantage is that it can meet the requirements with a very small volume. Therefore, it can greatly reduce the weight of the speaker and the overall weight of the speaker, making it easy to install and transport. It is usually used on performance speaker products that require frequent flow, which can reduce human labor intensity. It can also improve sensitivity. The neodymium iron boron horn has high magnetism, and the power of the same volume horn can be increased several times, making it more suitable for making small caliber high-power units.