Beryllium acoustic transducer

Details Beryllium acoustic transducer Beryllium acoustic transducer

H - Electricity

04

R

H04R 31/00 (2006.01)

Patent

CA 2522519

The invention relates to a loudspeaker for a loudspeaker cabinet, especially a tweeter or a medium, comprising a direct radiation spherical membrane which has a concave face in relation to the spool and on which the mobile spool is positioned at a certain height, for example, midway or essentially midway, in order to ensure an optimum mechanical coupling that can reproduce frequencies lower than 1 KHz with a high efficiency. Pure beryllium or a Be/Al alloy or similar alloys are used to form the membrane. The invention especially relates to tweeter or medium loudspeakers specifically for loudspeaker cabinets with a very high degree of fidelity.

Haut-parleur pour enceinte acoustique, notamment «tweeter», ou encore « medium », qui comporte une membrane sphérique à rayonnement direct, à face concave par rapport à la bobine et sur laquelle est fixée à un certain niveau, par exemple à mi-hauteur ou sensiblement à mi-hauteur, la bobine mobile afin d'assurer un couplage mécanique optimal capable de reproduire des fréquences inférieures à 1 KHz avec un rendement élevé. On emploie comme constituant de la membrane le béryllium pur ou un alliage Be/Al ou alliages analogues. Haut- parleurs de type « tweeter »ou « medium », spécialement pour enceintes acoustiques de très haute fidélité.

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