| 摘要 |
PURPOSE:To attain small size with sure sound pressure and quality for a speaker, by sectioning spaces of the front and rear sides of a speaker main body so as not to be interferred with each other for air vibration and introducing all the generated sound to the opening. CONSTITUTION:A fitting metal fixture 7 is used for a fitting means of the speaker main body 4 and a means in common which sections a space 11 at the front of the speaker and a rear (back) space 12 so that the air vibration is not popagated with each other. Through the constitution like this, the speaker main body 4 is incorporated beneath a keyboard 2, the spaces 11, 12 are isolated for the air vibration with the fixture 7, the output from the front side of the main body 4 is not interferred at all with the output of inverted phase from the rear side, and the output can be given from a two-directional opening section 5 made at the side lower end of a lower cabinet 6 efficiently. Thus, the design is also easy. |
