调音台与功放连接后,输入音源后,调音台显示屏显示NodeⅤiCe,电平表的灯也不上下闪动,音箱无声

2025-03-15 01:57:05
推荐回答(1个)
回答1:

前置放大器,是为功放提供所需要的输入电平而设;功放的输出功率,不仅仅取决于放大能力,如果输入电压不够也会达不到输出要求。前置放大器是音频放大电路。调音台,是调整高中低频信号放大特性的,对信号的各个频率进行均衡,把需要突出的频段进行提升,把已经过强的频段进行衰减,它的放大作用实际上只是对调节过程中产生的衰减进行补偿。功放的功率较小时,信号先经过前置后经过调音台,也能正常工作。功放机功率大时,信号一定要先经过调音台再经过前置放大,否则会得不到所需的输出功率。

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