Coil

The role of the coil: the transmission of audio signals, that is, when the audio signal through the coil, the coil will produce a magnetic field, the magnetic field and the speaker on the mutual magnet

When the alternating audio current through the coil, the coil produces the current with the audio and the change in the voice coil is the driver of the speaker components,

Of the magnetic field, the magnetic field of the horn magnet with the occurrence or absorption of the role of repulsion, resulting in mechanical vibration coil to drive cone vibration,

Repeatedly pushing the air and making a sound.