Befaco STMix

Compact four-channel stereo submixer for Eurorack

6 HP Eurorack module

STMix is a compact four-channel stereo mixer in 6HP, designed for mixing stereo or mono signals in a Eurorack system. It features DC-coupled inputs for mixing CV as well as audio, an unattenuated Aux stereo input, and can expand the Befaco Hexmix module via a six-pin ribbon connector on the back.

Features

• Four channel stereo mixer in 6HP
• DC-coupled inputs allow mixing of both audio and CV signals
• Each channel has stereo Left and Right inputs
• Using only the Left input of a channel routes a mono signal to both Left and Right outputs (mono to stereo duplication)
• Independent manual attenuation knob per channel
• Aux stereo input with no attenuation control, passes directly to the output
• Six-pin ribbon connector on the back for expansion with Befaco Hexmix module
• When used as Hexmix expansion, STMix output is present in the Hexmix master section
• Can be used as a standalone mixer or as a submix expander

Controls & Jacks (19)

• Channel 1 Level 1— Manual attenuation control for Channel 2 input
• Channel 1 Right Input 1— Stereo input for Channel 4 right channel
• Channel 2 Level— Manual attenuation control for Channel 3 input
• Channel 1 Right Input 2— Stereo input for Channel 1 right channel
• Channel 2 Right Input— Stereo input for Channel 2 right channel
• Channel 3 Right Input— Stereo input for Channel 3 right channel
• Channel 3 Level— Manual attenuation control for Channel 4 input
• Channel 1 Left Input— Stereo input for Channel 1 left channel
• Channel 1 Level 2— Manual attenuation control for Channel 1 input
• Channel 2 Left Input— Stereo input for Channel 2 left channel
• Channel 3 Left Input— Stereo input for Channel 3 left channel
• Aux Input Left— Extra stereo input without attenuation control that goes directly to output
• Left Output— Main stereo output left channel
• Channel 4 Left Input— Stereo input for Channel 4 left channel
• Aux Input Right— Extra stereo input without attenuation control that goes directly to output
• Right Output— Main stereo output right channel
• R
• Channel 4 Level— Manual attenuation control for Channel 4 input
• Channel 4 Right Input— Stereo input for Channel 4 right channel

How-To Guides

• Four Channel Stereo Mix
• Mono Sources to Stereo Output
• CV Signal Mixer
• Reverb or Effects Return via Aux
• STMix as Hexmix Submix Expander
• Layered Drone Mix
• Drum and Percussion Submix
• Generative CV Blend for Pitch Drift
• Live Performance Level Riding

Explore the interactive STMix panel on BleepDex — tap any control to learn what it does.