本作品是由前置放大、带阻网络、数字幅频均衡和低频功率放大电路组成的数字幅频均衡功率放大器。总体方案以LM386为核心实现了前置放大功能，对放大后的输入信号通过AIC23B进行A/D采样后，用TMSC5402 DSP对采集来的信号进行处理，实现了数字幅频均衡，最后以2SC3281为核心实现了信号的低频功率放大。-This work by the pre-amplifier, band-stop networking, digital amplitude-frequency balanced and low-frequency power amplifier circuit consisting of digital amplitude-frequency balanced power amplifier. Overall program to LM386 for the core implementation preamp, A/D sampling, TMSC5402 DSP acquisition to the signal processing of the input signal is amplified by AIC23B, digital amplitude-frequency balanced last 2SC3281 The core signal of the low-frequency power amplifier.