| 摘要 |
Ring-shaped membrane (1) for an electro-acoustical loudspeaker, where said membrane (1) comprises two or more dome-shaped annuli (2,3) concentrically arranged around a central portion (8) through which an imaginary axis of symmetry passes, where an outer periphery of said membrane (1) is suitable to be attached to a surround; where the central portion (8) is attached to a tower (9), which again is fastened to the loudspeakers driver, wherein the angle between a plane being perpendicular to the axis of symmetry and the attachment of the membrane (1) to the surround resp. the tower (9) is in the interval 0°to 40°, most preferred around 30°. |
