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Journal Article

A New Thermal Model for Loudspeakers

Authors: Blasizzo, Fabio

Journal of the Audio Engineering Society · Volume 52 · Issue 1/2 · pp. 43–56 · February 2004

Abstract

The capability of a moving-coil loudspeaker to sustaining a certain power is related to its capability of dissipating heat produced by the Joule effect in the moving coil and, due to eddy currents, in the pole piece. Different heat transmission phenomena were analyzed in order to determine a lumped-element thermal model realistically related to the physics of the process. The model is based on the Zuccatti-Button approach. However, a more detailed model has been developed in order to consider all the heat transmission processes involved. In particular, forced-air convection, induced by the cone movement at low frequencies (30-150 Hz), has been taken into account.

Details

Publication
Journal of the Audio Engineering Society
Volume
52
Issue
1/2
Pages
43–56
Publication date
February 6, 2004
Affiliation
Trieste, Italy (See document for exact affiliation information.)
Type
Journal Article