Attenuator and Mixer
This module offers four separate attenuators to reduce signal strengths and also comes with a mix output.
There is the same module with faders rather than knobs, which can be really useful for audio mixing live etc. 4ATTMIX Fader
These merchants probably sell this module. Huh?
Tangible Waves 4ATTMIX FADER
Tangible Waves 4ATTMIX
Tangible Waves Tangible AE Modular