Audio Mixer

The module is a simple manual 4 input audio mixer in a 1" module

Input 1 is unity gain with no attenuator, inputs 2-4 have manual attenuation

The module is built on a single panel component PCB with both the controls and the surface mount electronics

A panel PCB Gerber file is included, though at 4U size there's significant flex. But it's included if you want to build a mixer at minimal cost. The panel can be doubled up (see photos) but there's very little thread to attach the pots to the panel.

Gerber files can be download below. You're free to make or update them under creative commons cc-by-sa-3.0

My other open source module is HERE