4 Channel Audio Mixer Circuit Diagram. Two mic audio inputs and two direct line inputs are available in this circuit. The circuit consists of 4 channel quad amplifier lm3900.
P1 p2 r1 r2 r3 r4 c1 and c2. A simple multi channel audio mixer circuit using lm3900 quad amplifier is given below. 4 channel dj audio mixer circuit for discotheque applications last updated on july 3 2019 by swagatam 4 comments this is a universal 4 channel dj audio mixer project that may be customized and upgraded to 5 channel or even 10 channel level as desired by the user.
Using a codec circuit convert stereo audio to mono audio time.
Using a codec circuit convert stereo audio to mono audio time. P1 p2 r1 r2 r3 r4 c1 and c2. A simple multi channel audio mixer circuit using lm3900 quad amplifier is given below. These parts must be wired as shown in the above circuit diagram connecting r3 and r4 to pin 2 and pin 6 of ic1 for right and left channel respectively.
