| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic keyboard musical instrument that makes a musical sound from a speaker sufficiently reach a player and whose external appearance can be improved. <P>SOLUTION: The electronic keyboard musical instrument is equipped with a case 3 of a musical instrument main body 2 having a front plate 7 closing the front, a plurality of keys 4, a woofer 13 which is arranged in a space SL in the case 3 where the woofer is covered with the front plate 7 and reproduces and radiates a musical sound signal including a lower-register component as a musical sound as keys 4 are pressed, and openings 16 and 17 which are formed at positions of the front plate 7 different from the position where the woofer 13 is arranged and for radiating the musical sound generated by the woofer 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
