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The design includes personally fabricating Dupi surrounding voice decipherer by using ordinary electronic devices, using DC control technology in the predrive amplified circuit and applying active servo-technology to the over-loaded low voice curcuit.

本文介绍了一种新型功率放大电路的设计，利用普通元器件自制杜比环绕声解码器，将直流控制技术应用到前置放大电路，将有源伺服技术应用到超重低音电路，各具特色，LM3886功率放大芯片，功率大，效果好。