DIRECT RADIATION PURE BERYLLIUM ACOUSTIC TRANSDUCER HAVING A CONCAVE MEMBRANE, USED FOR AUDIO APPLICATIONS, ESPECIALLY FOR LOUDSPEAKER CABINETS

摘要

loudspeaker and loudspeaker, in particular tweeteru00bb or "medium".", which has a spherical membrane direct radiation, concave facein relation to the spool and on which is fixed at a certain level, byfor example, half height, or about halfway to the moving coil.to ensure an optimal mechanical coupling capable of reproducing frequencybelow 1 khz with a high efficiency. it is asthe membrane or an alloy of beryllium for al alloys are similar. highspeakers of "tweet" or "medium", particularly for pregnanthigh fidelity sound.