Sound reproduction device working according to the bending wave principle

Abstract

The invention concerns the embodiment of panel loudspeakers working according to the bending wave principle. Said loudspeakers are generally formed by at least one acoustic panel ( ) and at least one driver ( ), the driver ( ) being connected to the acoustic panel ( ). When such acoustic panels ( ) are used for reproducing low frequency audio signals, the acoustic panel ( ) must be arranged in sufficiently large sound walls in order to exclude the occurrence of an acoustic short circuit between the front part and the back part of the panel. Apart from being costly, only one side of the sound walls is actively used for sound generation as a result of the separation of both acoustic panels ( ). Hence, the invention aims at providing a panel loudspeaker ( ) that does not require any additional sound walls in order to exclude the occurrence of an acoustic short circuit while at the same time enabling full utilization of the surface of the acoustic panel ( ) for sound generation. This is achieved by arranging two of the acoustic panels ( ) at a distance (A) in relation to each other, by providing elements ( ) connecting both acoustic panels ( ) and by arranging the drivers ( ) on the sides of the acoustic panels ( ) facing each other. Due to the fact that, once connected, both acoustic panels ( ) vibrate in opposite directions they mimic the principle of a breathing sphere or wall.