Abstract: A modular loudspeaker comprises a first module including a first loudspeaker unit (1) for reproducing a low-frequency audio signal and provided with at least two flat diaphragms (4, 5) and a second module including a second loudspeaker unit (2) for reproducing a high-frequency audio signal by means of a loudspeaker (8). The first and second loudspeaker units are constructed either to be mechanically detached from one another or to have connecting means whereby they can be rigidly mechanically connected to one another in a manner that will permit relatively easy mechanical detachment of the units from one another. Connecting means (10 or 11) allows the loudspeaker units to be electrically connected to one another and comprise interengageable parts that can be disengaged to disconnect the units.

Abstract: An electrodynamic transducer of the flat-diaphragm type in which the movement of the voice coil and coil former (2, 3) is transmitted to the flat diaphragm (1) via at least one auxiliary cone (8 or 20). The auxiliary cone is secured to a centering diaphragm (7) along its outer rim (10), if required via a coupling element (23). This is advantageous in the construction and the method of manufacturing the transducer. Moreover, a low-distortion transducer is obtained. A method of manufacturing the transducer is disclosed.