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| Components |
Magnets |
Sound
Waves |
Hearing
Sound |
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The Electromagnetic force is the main force behind creating movement of the speaker itself with the magnet and voice coil being the two basic interacting components.
Info graphic created by Jacob O'Neal at Animagraffs
The voice coil is wrapped around a stabilizing device called a former, this holds the shape of the coil and resists heat build-up. As an electric current is passed through the coil it creates a magnetic field which can either oppose or align with the stationary magnet's field. The direction of the current determines whether the magnetic field will oppose or align. Using an alternating current the voice coil, which is attached to the cone, will move up and down within the stationary magnet and cause the creation of sound waves.