A moving coil loudspeaker is a type of loudspeaker that uses a permanent magnet attached to a diaphragm to create sound. The diaphragm is attached to a coil of wire, which is suspended in a magnetic field. When an electrical signal passes through the wire, it creates an interaction between the magnetic field and the coil, causing it to vibrate. This vibration is transferred to the diaphragm, which produces sound waves.
