Previous circuit models of dynamic moving-coil transducers that incorporated “semi-inductors” need to be extended in order to cover those cases that failed to adequately predict performance. The improved model takes into account semi-inductance, the effects of AC shorting devices, and the impact of frequency-dependent loss in the suspensions. As shown by the good agreement between the models and measurements, only a few additional components need be added to the model. This represents a more detailed physical understanding of loudspeaker behavior.

Authors: Thorborg, Knud; Futtrup, Claus
Affiliation: Scan-Speak A/S, Videbaek, Denmark
JAES Volume 59 Issue 9 pp. 612-627; September 2011
Publication Date: October 10, 2011

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