| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker device which can simply change frequency characteristics of an emitting sound wave without spoiling appearance of the speaker device regarding the speaker device which prepares a speaker unit in a speaker box, and outputs an input audio signal. SOLUTION: The speaker box prepares a pierced through hole in a lower surface, and is provided with: a stand on which the speaker box is placed; a cavity which is installed inside the stand, and opens an aperture in a position to be through to the pierced through hole in its upper part; a first female screw unit which penetrates from the cavity to a front face of the stand; a second female screw which is installed in a position of different height from the first female screw part, and penetrates from the cavity to the front face of the stand; and male screws which are respectively screwed into the first female screw and the second female screw. COPYRIGHT: (C)2008,JPO&INPIT
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