| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker apparatus capable of large output of sound reproduction. SOLUTION: Voice coils 14u and 14d which are respectively arranged on upper and lower magnetic gaps 13a and 13b respectively consist of upper coils 14uu, 14du and lower coils 14ud, 14dd which are arranged apart from each other. Further, when the coils 14u and 14d are in a still state, the upper ends of the coils 14uu, 14du are arranged so as to be higher than the top end of the gaps 13a, 13b, and the lower ends of the coils 14ud, 14dd are arranged so as to be lower than the bottom ends of the gaps 13a, 13b. COPYRIGHT: (C)2004,JPO
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