The paper explains the basic results of numerical and experimental analysis of moving assemblies and suspensions of speakers taking into account the bending forces and the in plane forces that acts on these slender bodies. The distribution of these stresses is shown in cones of direct radiators and in domes of compression drivers as well. An explanation of the generation of subharmonics is obtained by this technique. The suddenly jump of the working point on moving assemblies is justified by means of the compression forces that act on the suspensions. These compression forces are the cause of the buckle or snap that very often the speakers do. This article analyzes different suspension’s types showing the compromise situation for the designer.
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