LM-40无源音频衰减器 Audio passive attenuator

什么是线路输出，比如手机、MP3、电脑、CD机、DVD、电声乐器（电吉他、电吹管、萨克斯、电子琴、电钢琴、电子鼓等）它们这类电子产品输出的信号强度约0.3vrms-2vrms之间的；

麦克风输入口要求0.01v-0.1v之间，如果把线路输出信号输入进来，那么信号过大会产生严重的失真现象，本机可以把信号减小到适合的大小，这样就可以把一些音频设备输入到声卡或者音响上话筒接口上，让它们产生混响效果，适合一些玩音乐的朋友进行直播录视频等。

IN为输入端口：6.5mm单声道大二芯、3.5mm双声道插座，可以用其中一个或者两个端口同时使用；

OUT为输出端口：6.5mm单声道大二芯、3.5mm双声道插座（已经混合为 单声道信号），可以用其中一个或者两个端口同时使用；

衰减量： -40db至-15db可调。

  Line output, such as mobile phones MP3 、 Computer CD player DVD 、 Electroacoustic instruments (electric guitar, electric wind pipe, saxophone, electronic piano, electric piano, electronic drum, etc.) output signals with a strength of approximately 0.3vrms-2vrms from these electronic products;

  The microphone input port requires a voltage between 0.01v and 0.1v. Excessive signals can cause serious distortion. This device can reduce the signal to a suitable size, allowing some audio devices to be input into the microphone interface of the sound card or speaker, creating a reverberation effect. It is suitable for friends who play music to live stream and record videos.

IN: 6.35mm mono jack 3.5mm stereo jack, which can be used with one or both ports simultaneously;

OUT: 6.35mm mono jack 3.5mm stereo jack (already mixed into mono signal), can be used with one or both ports simultaneously;

Attenuation amount:Adjustable-40dB to -15dB。