| 摘要 |
PURPOSE:To realize a high-efficient tweeter with improved characteristics of a woofer and the tweeter by using a ring-shaped plate diaphragm for the woofer and then by inserting the tweeter from the reverse opening at the center part of its magnetic circuit part. CONSTITUTION:As a low-frequency-range diaphragm for a woofer, ring-shaped plate 1 is used and a sound from tweeter 9 is reflected by the low-frequency-range diaphragm, thereby preventing the disorder of characteristics of speaker 9. Further, tweeter 9 is inserted from reverse opening 3' at the center part of the woofer and fitted. Consequently, magnetic circuit 3 much greater than the diameter of the diaphragm can be used for the tweeter and high-efficient one can be realized. |
