| 摘要 |
A sound-reproducing apparatus includes plural coupling portions, plural rods, plural shell portions, an actuator, and first, second, and third speakers. The coupling portions are disposed at positions corresponding to vertices of an assumed first regular tetrahedron and second regular tetrahedron in a duality relation. The rods connect adjacent coupling portions with each other among the coupling portions. The shell portions are joined to the rods. The actuator is disposed outside one coupling portion selected from the coupling portions with respect to a center of the first regular tetrahedron or second regular tetrahedron, and the actuator is connected with the one coupling portion. The first, second, and third speakers are disposed on, of the four coupling portions disposed at positions corresponding to the vertices of the one of the first and second regular tetrahedra including the one coupling portion, three coupling portions excluding the one coupling portion. |
