| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a dynamic headphone unit which applies stress to acoustic resistors thereby inhibiting vibration and resonance of the acoustic resistors and preventing deterioration of the frequency response and the distortion factor.SOLUTION: A dynamic headphone unit includes: a diaphragm 13 having a voice coil 133; a magnetic circuit 17 having a magnetic gap in which the voice coil 133 is disposed; and a unit frame 14 where acoustic resistors (11, 12) are disposed in sound holes (15, 16) which are formed facing the diaphragm 13, the unit frame 14 supporting the magnetic circuit 17 and the diaphragm 13. Stress caused by elastic members (21, 22) is applied to the acoustic resistors (11, 12).</p> |
