| 摘要 |
<p>Objects are to make a speaker device (100) smaller than heretofore in size, in profile, and in weight, and to reproduce sound in high quality. The speaker device (100) includes: a diaphragm (8) which has an inner rim (8a) connected to a voice coil bobbin (6) and an outer rim (8b) connected to a frame (5) through an edge (9), and is shaped so that a peak portion (8c) is formed between the inner rim (8a) and the outer rim (8b), which are positioned at an acoustic radiation side in comparison with the peak portion (8c); and an inner magnet type magnetic circuit (4) for driving a voice coil (7) which is arranged on the voice coil bobbin (6) connected to the inner rim (8a) of the diaphragm (8).</p> |
