| 摘要 |
A loudspeaker capable of improving the efficiency, providing a high performance, and reducing its weight. In a general loudspeaker or a loudspeaker having a repulsion magnetic field type magnetic circuit, the whole or part of the voice coil 1 uses a composite wire A formed by a conductive wire made of conductive material C and a magnetic material F provided at least partially on the surface of the conductive wire, or a composite wire A formed by a magnetic wire made of magnetic material F and a conductive material C provided at least partially on the surface of the magnetic wire.
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