| 摘要 |
PROBLEM TO BE SOLVED: To provide a loudspeaker employing a piezoelectric vibrator that increases a bass sound pressure in the loudspeaker. SOLUTION: A piezoelectric vibrator 16 and conduction type vibrations 20, 32 are fitted to an acoustic digital signal 12 via a high frequency sound primary diaphragm 14 and a low frequency sound primary diaphragm 18. The middle part of the piezoelectric vibrator 16 is fitted to the high frequency sound primary diaphragm 14 via a connection member 16a. In the conduction type vibrations 20, 32, voice coils 20c, 32c are placed around magnetic exciting elements 20b, 32b in housings 20a, 32a and the magnetic exciting elements 20b, 32b are fitted to the housings 20a, 32a in a freely reciprocating way.
|
