用头戴式耳机，尤其是小型耳机听音乐，总感到音乐味不够足，在低频段的效果更差。因此用本机增强耳机的低频特性，并采用立体声反相合成的办法，加上内藏简易矩阵环绕声电路，能获得强劲的低音和在较宽的范围内展宽音域。

    本机称为超级广场效果。这种扣人心弦的力量，不亚于实况立体声。

  电路原理

 本机电路大致可分为下面三部分：
    1.由电阻电容组成的低频增强电路。
    2.利用功率放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器" title="放大器">放大器IC的反馈输入，组成立体声反相合成电路。
    3.利用功率放大器IC,组成头戴耳机的驱动电路。
    从输入端IC之间的电阻电容起到增强低频特性的作用，因为加有电位器，低频部分的增强量可在0--10倍之间连续可调。
    立体声反相合成电路IC 2脚和8脚的直流耦合电容之后，由0.47UF和50K的电位器组成。在此电路中，把立体声的广场效果成分中的高音部分左右分别反相后合成，起到增强效果的作用。
    用东芝TA7376P推动头戴式耳机。这种IC内藏两个通道，外接元件少，可在低电压下工作。负载阻抗较低时，可重放出动人效果的低频声音 。
    电源若改用5#电池，用四只串联，电压为6V，可直接驱动高输出的扬声器。若将三个200UF/10V的电容增加到1000UF左右，可获得更好的效果。
  元件

    所有元件没有什么特殊的。电阻均为1/8W。0.1UF和0.47UF的电容用独石电容,其它的用电解电容。电位器中，20K为双连电位器，50K用带开关电位器。插头用立体声插头。

  制作

    制作极其简单，即使是初学者，有一天的时间就足够了。要留心IC的脚和电解电容的极性。
    电位器的接线比较凌乱，不要搞错了。若没有接线错误和焊接不良，一定会马到成功。
    接入头戴式立体声耳机或普通耳机，装入电池，打开开关。若两个旋钮配合得好，收听音乐可得到极其感人的效果，。根据聆听的音乐和音源适当的调整，这就是本机的使用方法要点。
    不用说，和小型音响，电视，CD相连会得到更佳的效果。

说明：电路原理图中，W1为双联电位器，用于低音增强，W2为调节混响效果。印刷电路板图中，A1，A2为左右声道输入。电位器W1和W2都固定在盒子的边缘，其中W2为带开关的电位器。