Multiple loudspeaker with piezoelectric "tweeter" supported in such away as to allow complete exploitation of the main loudspeaker diaphragm, the surface of which reflects the radiation emitted from the rear by the ceramic disk and by the piezoelectric "tweeter" diaphragm

Abstract From the Canadian patent

Multiple loudspeaker with piezoelectric "tweeter" supported in such a way as to allow complete exploitation of the main loudspeaker diaphragm the surfaces of which reflects the radiation emitted from the rear by the ceramic disk and by the piezoelectric tweeter diaphragm. This invention concerns a multiple loudspeaker with a piezo electric tweeter held up by a means of support which allows the rear wave emitted by the ceramic disk and respective conical diaphragm to be fully exploited using, the main loudspeaker cone as a reflecting surface without overloading the moving coil of the latter. The invention is basically characterized by the fact that the piezoelectric tweeter is placed in …