| 摘要 |
A tool for improving sound effects, wherein a plurality of flat plate parts (2, 3) made of a metal or wood face each other with an inter-plate part (4) between, and on the outer periphery of the inter-plate part (4), whose diameter is smaller than the flat plate parts (2, 3), formed is a groove (5) surrounding it in its circumferential direction, and on at least one-sided surface of the flat plate parts (2, 3) provided are a plurality of horizontal grooves (7) which are spaced with equal angles in the circumferential direction and extend radially, and further, the outer peripheral ends of the flat plate parts (2, 3) are chamfered. Thereby, the powerful feeling of the sound generated from a power supply apparatus is increased, and it is made to change into a some clear sound. |
