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Convention Paper

Upper Frequency Limit of Flat Panel Loudspeakers - Evaluation of the Voice Coil Break-Up Modes

Authors: Zenker, Benjamin; Merchel, Sebastian; Altinsoy, Ercan

AES Convention 148 · Paper 10324 · May 2020

Abstract

During the monitoring of the behavior of different types of exciters attached to the same loudspeaker panel, significant deviations of the upper-frequency limit were discovered. These deviations depend on the resonance of the voice coil former and cannot be explained with the linear T/S parameters. This paper shows the indirect and direct measurement of the voice coil’s break-up with two exemplary exciters. Furthermore, an FE-simulation model has been built to validate and visualize these break-up modes. Finally, a prototype with reinforced structure was constructed to increase the resonance frequency and to extend the frequency range of the loudspeaker panel.

Details

Published in
AES Convention 148
AES Convention
148
Paper number
10324
Publication date
May 6, 2020
Session subject
Loudspeakers
Affiliation
Dresden University of Technology (See document for exact affiliation information.)
Type
Convention Paper