hoegtalare med flera membran foersedd med i piezoelektrisk diskanthoegtalare som aer stoedd sao, at primaerhoegtalarens hela membran kan utnyttjas och votes shall reflekterar straolning som emitteras fraon den bakomliggande keramiska skivan och fraon den piezoelektriska diskanthoegtalarens

摘要

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 front of the main loudspeaker cone, without the traditional protection and support basket, but using a different means of support which does not intercept or disturb the rear radiation from the piezoelectric "tweeter", or prevent the forward reflection of the radiation by the main loudspeaker diaphragm.