PURPOSE: To improve resisting properties against high input and high temperature of an electromagnetic loudspeaker and easily produce the loudspeaker, by fitting a magnet so that the direction of the magnetic pole becomes normal to the diaphragm and installing a ring hole coil near the magnet so that the core of the coil coincides with that of the magnet.

CONSTITUTION: A permanent magnet 1 is joined with a diaphragm 2 and a coil 3 is set so that the core of the coil 3 coincides with the magnetic pole. When such a constitution is applied, it becomes possible to improve the efficiency of this loudspeaker, because the coil 3 is fixed and, therefore, the number of winding can be increased. Moreover, the coil can be worked into one having a radiating property so as to protect the damage due to high inputs and high temperature. In addition to the above, because of absence of any air gap, the permanent magnet 1 does not contact with the coil 3 even when the diaphragm makes a large motion. It is admissible to keep a clearance of about 3mm between the permanent magnet 1 and the coil 3 and, therefore, the yield can be increased.