Available as an assembled Module and as a DIY project.
This Module is discontinued.
Specs are approved by the manufacturerDual Mixer/Averager
Dual mixer is a dual Averager.
Each on of the 3 inputs have a gain of 1/3 of the output.
Unlike Unity gain mixer, Averager avoid clipping, so it's particularly suitable for rapidly mixing audio sources such as oscillators.
It can also be use as a precision attenuator/mixer.
https://blacknoisemodular.com/products/black-noise-dual-mixer-eurorack-module
These merchants probably sell this module. Huh?
Intellijel Unity Mixer Dual 3:1 / 6:1
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ALM/Busy Circuits ALM043 BXx2 Dual BX /
Boredbrain Music Mimix Dual Multiple &
Dreadbox Eudemonia Dual Filter, Mixer &
Intellijel uVCA II Dual VCA + Mixer