| 摘要 |
PROBLEM TO BE SOLVED: To obtain a unidirectional speaker apparatus capable of preventing arrival of reflected sound from a wall or the like to a listening position in a listening room by a simpler method.SOLUTION: The speaker apparatus includes an open type speaker 10 whose directivity is bidirectional and a close type speaker 20 whose directivity is non-directional, wherein the close type speaker 20 is arranged on the rear side of the open type speaker 10 so that the sound emission surface of the close type speaker 20 is turned to the rear side of the open type speaker 10 and respective sound emission axes of both the speakers 20, 10 are almost aligned. The speaker apparatus includes also a close type speaker driving means 30 for driving the close type speaker 20 in an in-phase state with the open type speaker 10. |
