Dynamic treble system

摘要

The invention relates to a dynamic treble system according to the moving-coil principle, consisting of a magnet system having an annular air gap and a diaphragm which consists of a hemispherical part and a bead part concentrically surrounding the former and is fixed on its periphery. In such a treble system, a part-area of the hemispherical part is mechanically blocked and does not participate in the vibrations of the remaining diaphragm area.