| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker unit capable of suppressing the intermodulation distortion. SOLUTION: In a speaker unit 10 provided with a magnetic circuit 18 including a magnet 19 and a yoke 14, a voice coil 20 disposed in a magnetic gap 17 of the magnetic circuit 18, an approximately disk-shaped diaphragm 25 which vibrates being coupled to the voice coil 20, and a holder 25 connected to the edge of the diaphragm 25 and fixed on a casing 11, the holder 24 is formed from a hybrid material of resin and tungsten. As the resin, polypropylene is suitable. Besides, it is preferable that the specific gravity of the holder 24 becomes 10.0 or larger. COPYRIGHT: (C)2004,JPO&NCIPI
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