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家用组合音响高保真系统、各种节日源(如收音头、磁带、唱片)信号都必须经过前置放大、音调处理再由功率放大级推动扬声器箱发声。其中音调控制部分担负着各种频率处理及控制音量大小的任务,是H_1-F_1系统中极其重要的一个部分。本文所提供的音调控制电路,具有高低音控制、音量平衡、响度补偿、八段触摸音量控制及对应的显示功能,是一种性能优异且美观实用的频率处理电路。
Home mix hi-fi system, a variety of holiday sources (such as radio head, tape, record) signals have to go through pre-amplification, tone processing and then amplified by the power amplifier speaker box sound. Among them, the tone control part is responsible for various frequency processing and volume control tasks, and is an extremely important part of the H_1-F_1 system. The pitch control circuit provided in the article is a kind of frequency processing circuit with excellent performance and beautiful appearance with high and low frequency control, volume balance, loudness compensation, eight-segment touch volume control and corresponding display functions.