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笔者采用美国国家半导体公司专为音响生产的三种集成电路制作了一款性能优秀的前级和电子两分频功放,经众多发烧友试听,性能和听感较佳,现介绍给音响爱好者。 高保真前级 高保真前级电路原理如图1所示。该电路由LMl894动态降噪器和LMl036直流音调音量控制器构成。
The author uses the National Semiconductor Company for audio production of three integrated circuits produced a good performance of the pre-stage and electronic two-way amplifier, the audition by many enthusiasts, performance and sense of hearing better, are introduced to audio enthusiasts. High-fidelity front high-fidelity circuit theory shown in Figure 1. The circuit consists of LMl894 dynamic noise reducer and LMl036 DC tone volume controller.