| 摘要 |
PROBLEM TO BE SOLVED: To minimize an influence of sound pressure on a speaker, to suppress vibration and resonance, to make improvement of reproduction efficiency of whole register and spreading of a low audio band more effective, and to reproduce clear and distinct sound. SOLUTION: This speaker device suppresses generation of standing waves by including an opening 6 to which the speaker 1 is attached, a rectangular parallelpiped speaker box 2 whose inner surface is cylindrical, connecting a cylindrical subspeaker box 3 with upper and lower sides, or right and left sides of the speaker box 2, attaching a cylindrical end cap 4 having a trumpet-shaped bass-reflex opening 7, to which a cylindrical balance cap 5 for suppressing excess reduction of the sound pressure to be generated inside is attached at an end different from the connection side with the speaker box 2 of the subspeaker box 3, and making the inner surfaces of the speaker box 2 and the subspeaker box 3 into cylindrical, and prevents the vibration and the resonance by composing all portions of the speaker boxes with different metal materials, respectively. COPYRIGHT: (C)2011,JPO&INPIT |
