| 摘要 |
<p>An electrodynamic acoustic transducer with reduced equivalent inductance of the moving equipment, comprising a magnetic circuit structure including a central core (21), a magnet assembly and a polar expansion (23) defining an annular air gap in which a voice coil (16) carrying an acoustic-frequency current is placed; and at least one stationary coil (30, 31) in the annular air gap arranged to carry acoustic-frequency current. The winding of the voice coil and the stationary coil are arranged in such a way to reduce the equivalent impedance of the moving equipment constituted by the voice coil and the associated elements.</p> |
