Available as an assembled Module and as a DIY project.
This Module is currently available.
6 channel utility mixer
6MIX is a six channel DC coupled utility mixer, for mixing audio or CV signals. It is split in two groups of three channels, both with their respective mute buttons. Group 1 is normaled to group 2 so you can use it as a 1x6 channel mixer. A header on the back allows you to chain multiple units for even more inputs.
https://pushermanproductions.com/?s=Antumbra+6MIX&post_type=product
8 Users are observing this
Antumbra 6MIX
Antumbra 6Mix 6 channel mixer