DIY Audio Tools - @aberseeem is planing on building a small audio mixer for his home aplications. He wants to build it as cheap as possible, but in good quality at the
How to Build a DIY Passive Summing Box – DIY Recording Equipment
LM3900 Audio Mixer Circuit
4 Channels Audio Mixer Portable Ultra Low-Noise Line Mixer Mini Stereo Mixer Audio USB Powered Mixer for Electronic Instruments - AliExpress
Tape Op | DIY summing mixer schematic help - Message Board