RESONANT MULTI-MODE RADIATOR ELEMENT AND PANEL-FORM LOUDSPEAKER

摘要

BACKGROUND OF THE INVENTION The present invention relates to a resonant multi-mode loudspeaker and a panel speaker. The essence of the speaker element is that the cell size of the core cell is smaller than, where h is the thickness of the cover of the speaker element, E is its modulus of elasticity,? its Poisson's coefficient of fiction and? its material density, and fmax. the upper limit of the operating frequency range of the speaker. According to the present invention, in the form of a panel-shaped speaker, it incorporates a more advanced speaker panel. ŕ