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Comparative Analysis of Moving-Coil Loudspeakers Driven by Voltage and Current Sources

The Thiele-Small method for speaker design considers the linear loudspeaker model driven by voltage sources and operating in a small signal environment. Subsequent studies have been made to introduce into the model some nonlinear characteristics due to the operation with large signals. This paper presents a comparative analysis of the sound pressure level and cone displacement of loudspeaker systems as an infinite baffle, a closed box, a vented box and band-pass enclosure driven by voltage and current sources, under small and large signals. The nonlinearities of the voice-coil, force factor and compliance of the loudspeaker are taken into account.

Authors: Bortoni, Rosalfonso; Noceti Filho, Sidnei; Seara, Rui
Affiliation: LINSE - Circuits and Signal Processing Laboratory, Department of Electrical Engineering, Federal University of Santa Catarina, Brazil
AES Convention:115 (October 2003) Paper Number:5910 Import into BibTeX
Subject:Loudspeakers

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