Speaker power is dominated by the power consumption of coin. Speaker magnets use the same
specifications and same magnetic material, but different in amounts
of magnetization, the speaker power, sensitivity and transient expression are also different. It is not simply think that the larger the diameter the better the speaker magnet.
The variational electrical current enter into speaker, the magnet
becomes a electromagnet. With the changing of the current
direction, the electromagnet is also kept moving back and forth
because of the force movement of energized conductor in a magnetic
field, which is also drive the cone vibrating. The sound of speaker
is produced.
