This Module is currently available.
high quality output mixer and stereo panner
The Erica Black Output Module is a high quality output mixer and stereo panner with balanced outputs and headphone amplifier for monitoring your modular masterpieces.
All inputs are buffered, we use stereo potentiometers (found in high quality studio mixers) for panning, IN4 is stereo input with simultaneous level adjustment for both channels, IN3 has a CV controlled autopan function. You will find 6.3mm jack for the balanced outputs and headphones.
Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, we did not economise on the module width, we put design and usability first. Big knobs are assigned to functions that make difference in sound. The Erica Black series are a range of modules that together make an entire synthesizer.
http://ericasynths.lv/en/shop/eurorack-modules/by-series/black-series/black-output-module-v2/
These merchants probably sell this module. Huh?