ferrite speaker magnets specification for speaker magnet

We manufacture ferrite speaker magnets,neodymium speaker magnets,magnetizer/demagnetizer for speaker magnet in China,our speaker magnet magnetizer/demagnetizer is most suitable for magnetizing/demagnetizing small/large loudspeakers and other ferrite magnets
The speaker magnet is to provide a permanent magnetic field for the speaker coil, which is embedded in the paper of the speaker cone. When the audio signal flows throw the speaker coil, it generates a small magnetic field varies with the strength of the audio signal. This small magnetic field is repelled by or attracted to the permanent magnetic field produced by the speaker magnet. Thus the paper cone moves away from or closer towards the back of the speaker. Hence as the strength of the audio signal wiggles, the paper cone wiggles back and forth, and you get sound waves that match the audio signal. Only the field in front of the speaker magnet is of any use. The field that comes out the back of the magnet serves no purpose, and you might use it to stick the speaker to the fridge.