| 摘要 |
PURPOSE:To increase medium and high sound region and to improve distortion, by providing a support rod in a speaker fitting hole of a buffle plate and providing an acoustic amplifying plate for this support rod. CONSTITUTION:A support rod 9 is provided for a speaker fitting hole 3 of a buffle plate 2 and both ends are fixed to an open ridge of the fitting hole 3. An acoustic amplifying plate 11 is located at the back of the support rod 9, and a fitting section 12 is fixed overlapping with a slope 10a of a notch 10. Through this constitution, the amplifying plate 11 is oscillated with middle and high sound presure at the center radiated from a cone paper 7 of a speaker 4 forward, the middle and high sound regions are secondarily intensified and the sound pressure from the back can simultaneously be controlled. Thus, the distortion can be improved, the adjusting of the sound quality can easily be made, and sound with increased power and sweetness can be produced to all directions. |
