In high-power operation the loudspeaker driver's voice coil gets heated up considerably. This causes an adverse change of the loudspeaker parameter QTS. Current drive offers a solution by removing electromagnetic damping. Motional feedback is one of the methods used to provide damping for systems of order 2. The authors extended these solutions to successfully include higher order systems.

Authors: Hsu, Tar S.; Poornima, K. A.
Affiliation: Department of Physics, National University of Singapore, Singapore
JAES Volume 47 Issue 1/2 pp. 32-38; February 1999
Publication Date: February 1, 1999

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