扬声器做为音响系统的终端,在将功放输出的电信号转换为声信号时,将产生运动失真。该失真已占到系统失真的70％以上。在音响系统中,信号源和功放的失真现在都可以做到0.1％以下,唯有扬声器是最薄弱的环节。以往人们也采用过一些方法来消除这一失真,但这些方法基本上都是被动的方法,使用上极其不便,也不适合于普通用户。本文介绍的一种扬声器运动失真控制电路,可以加装到现有普通功放上,使普通功放升级换代。 当在扬声器音圈上加上一电压U时,音圈内就有电流流 Speakers as a sound system terminal, the amplifier output of the electrical signal into an acoustic signal, it will produce motion distortion. This distortion has accounted for more than 70% of system distortion. In the audio system, the distortion of the signal source and the amplifier can now be less than 0.1%, and only the speaker is the weakest link. In the past, people also used some methods to eliminate this distortion, but these methods are basically passive methods, extremely inconvenient to use, nor suitable for ordinary users. This article describes a speaker motion distortion control circuit, you can retrofit to the existing ordinary amplifier, so that ordinary amplifier upgrade. When a voltage U is applied to the voice coil of the speaker, current flows in the voice coil