This Module is a prototype or in a concept phase.
DIY stereo splitter, jack size converter, crossfader
Handmade by Benton Spiker for himself as a one-off, then sold via marketplace. Panel is an old clipboard backing cut to size. Converts 1/8" to 1/4" and vice versa, 1/8" stereo to dual 1/8" mono, and crossfades two signals with a single knob. Fully passive.