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Convention Paper Open Access

Low-Frequency Performance of a Woofer-Driven Flat-Panel Loudspeaker (Part 1: Numerical System Analysis and Small Signal Measurement)

Authors: Zenker, Benjamin; Schurmann, Robert; Merchel, Sebastian; Altinsoy, M. Ercan

AES Convention 149 · Paper 10391 · October 2020

Abstract

The low-frequency performance of loudspeakers is essential to the listener preference rating. To achieve the same low-frequency performance as conventional speakers, an optimized construction of a woofer-driven flat-panel loudspeaker was designed. The woofer radiates in a small air gap between the panel and the distance plate and excites the panel uniformly. At low frequencies, significant improvements compared to an exciter and a comparable performance to a conventional woofer system could be reached. This paper presents a numerical system analysis of the paneled woofer design, which provides a detailed understanding of the system’s behavior. Furthermore, the radiation mechanism is compared to that of an exciter. All simulation models are comprehensively validated with the corresponding experimental data.

Details

Published in
AES Convention 149
AES Convention
149
Paper number
10391
Publication date
October 6, 2020
Session subject
Audio Equipment
Affiliation
Chair of Acoustics and Haptic Engineering, Dresden University of Technology, Dresden, Germany (See document for exact affiliation information.)
Type
Convention Paper