Abstract: A convex electrodynamic loudspeaker having hemispherical sound emission characteristics and full range frequency response. It comprises a conical convex diaphragm and a voice coil form having a voice coil wound around its cylindrical end while its opposite conical end protrudes the central dome-shaped part of the convex diaphragm where both parts are cemented together. The voice coil form operates as a reciprocate motion member to the convex diaphragm efficiently even in the highest audio frequencies. The configuration of the convex diaphragm provides hemispherical characteristics of sound emission for overall the audio frequencies.