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Journal Article

Frequency Dependence of the Loudspeaker Suspension (A Follow up)

Authors: Thorborg, Knud; Futtrup, Claus

Journal of the Audio Engineering Society · Volume 61 · Issue 10 · pp. 778–786 · October 2013

Abstract

An earlier report by the authors described a lumped parameter model for a dynamic loudspeaker that incorporated a mechanical resistance proportional to frequency. That model neglected frequency dependence of compliance as having no significant influence at audio frequencies. This paper refines that model by including the frequency dependence of compliance according to the so called “LOG model.” However, loudspeakers with a low degree of viscoelastic properties still have frequency dependence of damping not explained by the original “LOG model.” The new model accurately fits the measured loudspeaker magnitude and phase impedance curves. This improved accuracy is achieved with the addition of only one parameter.

Details

Publication
Journal of the Audio Engineering Society
Volume
61
Issue
10
Pages
778–786
Publication date
October 6, 2013
Affiliation
Scan-Speak A/S, Videbaek, Denmark (See document for exact affiliation information.)
Type
Journal Article