Plastic magnetic ring wholesale first master what horn magnet in the horn; When the current into the speaker, the magnet becomes "electromagnet ". The current has a different Angle change, this current will suffer from the mutual force of the electromagnetic field, so that the voice coil caused vibration, promote the sound coil paper bowl vibration, and then let the speaker has a sound.

Bonded plastic magnetic wholesale for speakers on the speaker magnet key ferrite and Ndfeb, aluminum nickel cobalt and other three common magnets. Aluminum nickel cobalt magnet is used on the horn magnet, is the past woofer, generally made of internal magnetic horn. Because the output power is small, the frequency range is narrow, the production and processing is not convenient, so it is slowly replaced by Ndfeb and ferrite. The sound color harm of ferrite magnet to horn magnet; Because permanent magnet material powder and fans are raw materials sintered at 1200°C, they are generally made into external magnetic speakers. Low price and high cost performance, clear and significant, large volume comparison output power is small. Frequency range is narrow. Ndfeb characteristics are relatively good, compared with ferrite cost-effective is also high, is now the speaker magnet on the use of more magnets, and ferrite with the same volume magnetic compressive strength is all normal ferrite magnetic 10 by the compressive strength. In the same magnetic field under the condition of small size, large output power, wide range of frequency. But ndfeb is more and more expensive due to the price of rare earth, which is the defects of ndFEB at this stage.

In fact, for the wholesale choice of plastic ferrite for the harm of timbre will also appear some. The greater the magnetic flux density, the stronger the resistance on the sound film. Relative output power is also greater, sensitivity will be very high. The Q value of the total quality factor of the dense speaker is also very low, and the response to the signal is fast.