| 摘要 |
PURPOSE:To improve the efficiency and widen the band, by arranging a pair of plane vibration diaphragms oppositely to each other in the throat part of a horn part in a direction parallel with the horn axis and by arranging equalizers between these diaphragms. CONSTITUTION:As a speaker unit 32 connected to the throat part of a horn part 31, a pair of condenser type speaker units 321 and 322 are arranged which consist of a pair of plane vibration diaphragms 331 and 332 connected to upper and lower ends of the throat part of the horn part 31 in a direction parallel with the horn axis and a pair of fixed poles 341 and 342 provided oppositely to each other at the interval of a prescribed distance outside these diaphragms. Further, a pair of equalizers 351 and 352 which are elongated at a prescribed interval in parallel with each other and consist of, for example, metallic members of an approximately L form are provided between these diaphragms 331 and 332. |
