| 摘要 |
PROBLEM TO BE SOLVED: To reproduce high quality sounds by reducing the rolling of a diaphragm and making the back pressure of the diaphragm circumferentially uniform, using a simple constitution. SOLUTION: A speaker system 100 is constituted by supporting the diaphragm 6 on a frame 5 via an edge part 63, disposing a voice coil 7 provided to the diaphragm 6, in a freely vibrating state in a magnetic gap 4g of a magnetic circuit 4, and electrically connecting a lead wire 71 lead out of the voice coil 7, to a terminal part formed on the frame 5. Furthermore, the speaker system has a plurality of air vent parts 51 formed in the frame 5 circumferentially inside a support part (external end part 5b), supporting the diaphragm 6 and damping members 9 for back pressure adjustment which are formed at the air vent parts 51 on the frame 5, and have air permeability. The damping members 9 have air permeability, prescribed corresponding to the formation positions of the air vent parts 51 formed on the frame 5, based on the lead-out structure of the lead wire 71. COPYRIGHT: (C)2008,JPO&INPIT
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