Flat panel speakers are characterized by its low manufactured depth. Compared with conventional loudspeakers the space saving integration in existing surroundings is an advantage. From the acoustics point of view disadvantages come along with the low manufactured depth that influence the reproduction in the lower and middle frequency range. Based on measurements and FEM-simulations the reasons for this behavior were analyzed. Supplementary methods for solving this problem have been considered that are derived from conventional loudspeaker technologies.
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