| 摘要 |
The invention relates to a drive unit for a loudspeaker, and a loudspeaker including the same. The drive unit includes a magnet assembly which defines primary and secondary gaps with respect to which a voice coil assembly is movable and in which the same is mounted. The voice coil assembly includes a former which is located and suspended in the secondary gap by ferrofluid provided in said secondary gap, to locate the voice coil assembly without the need for a spider or other mechanical locating means to be provided.
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