| 摘要 |
PURPOSE:To obtain excellent external appearance and stable sound pressure frequency characteristic by providing a recessed part to the surface of a diaphragm in a radial direction and providing an eyelet to the bottom of the recessed part. CONSTITUTION:While a lead wire 6 from a voice coil 5 is inserted to a slot of the recessed part provided from the neck of the diaphragm 2 to the position of the eyelet 4, the end of a gold thread wire 3 soldered in advance is soldered (7) to the eyelet 4, then no bridged solder takes place to the wire 6, and a liner 9 is not swollen and the lead wire 6 is not cut off at the tip of a coater 10. Thus, excellent external appearance and stable sound pressure frequency characteristic are obtained.
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