Audio Circuit Mixer: 5 Ways of Building an Audio Mixer
Summing Amplifier is an Op-amp Voltage Adder
Solved A mixer circuit using an ideal operational amplifier | Chegg.com
Switched-gain op amp serves as phase detector or mixer
ALABS Table de mixage audio 6 canaux, table de mixage DJ pour PC, karaoké, amplificateur de mixage, mixeur de podcast, console de mixage d'interface XLR, préamplis OP-AMP/Phantom/EQ 3 bandes/16 DSP, TABLE6 :
How to Build an Audio Mixer - Circuit Basics
Mixing console - single opamp audio mixer | Elektor Magazine