Panning Mixer with headphone amplifier
The mki x es.edu Output Mixer is essentially a panning mixer – it takes two mono inputs with adjustable gain and pans them left or right to the stereo output, and an integrated amplifier boosts the signal for use for headphones.
https://www.ericasynths.lv/shop/diy-kits-1/edu-diy-output/
Module is available as a DIY project only.
This Module is currently available.
$59