An electro-acoustic transducer, a loudspeaker system comprising at least one such transducer, a method of manufacturing an electro-acoustic transducer and a method for producing an electro-acoustic transducer

摘要

A electro-acoustic transducer of ribbon type comprise a frame unit (10), at least two elongated magnet units (14), and at least one electrically conducting elongated membrane (13), wherein the frame unit (10) comprises at least two longitudinal supporting profiles (11a, 11b) of a non-ferro-magnetic material. The longitudinal supporting profiles (11a, 11b) are arranged in parallel with each other and spaced apart from each other, whereby two adjacent longitudinal supporting profiles (11a, 11b) form an elongated gap (12). The electrically conducting elongated membrane(s) (13) is/are provided in said gap(s) (12) and it(they) is/are electrically coupled to enable the passing of a drive current in the longitudinal direction of the membrane (13). The magnet units (14) are arranged with a pole of one polarity of a first magnet unit (14) facing a pole of opposite polarity of a second magnet unit (14), and they are supported in the longitudinal supporting profiles (11a, 11b). The invention also refers to a loudspeaker system comprising at least one such transducer, a method of manufacturing an electro-acoustic transducer and a method for producing an electro acoustic transducer.