befaco-out

Befaco Out

Stereo output and headphone monitor for Eurorack

4 HP Eurorack module

The Befaco OUT V3.1 is a stereo output and monitoring module for Eurorack systems, providing two channels of gain-controlled line-level output alongside a dedicated headphone amplifier with cue input mixing. It serves as the final stage in a modular signal chain, bridging Eurorack levels to studio and live environments with clean, practical utility.

Features

  • Stereo line-level output with independent gain control per channel
  • Dual 100k potentiometers for left and right gain (GAIN_M1, GAIN_M2)
  • Dedicated headphone amplifier output
  • Cue input for headphone monitoring mix
  • Three indicator LEDs (LED_B1, LED_B2, LED_B3)
  • Two-circuit two-position mode switch
  • 1/4 inch output jacks for left and right channels
  • Mini-jack inputs and cue input
  • Split two-PCB design: CONTROL PCB and MAIN PCB connected via pin headers
  • Ferrite bead power filtering on both rails
  • TL072P op-amp based signal processing
  • Three 2N3904 transistors on control board

Controls & Jacks (12)

  • Cue In— Headphone cueing audio input
  • Left Input— input null
  • Right Input— Audio input for the right channel
  • Mode— Switches between stereo and mono operation modes
  • Left Output— output null
  • Right Output— Main audio output for the right channel
  • Out
  • Headphone Out
  • Headphone Out
  • Input
  • Gain Left— Controls the output level for the left channel
  • Gain Right— Controls the output level for the right channel

How-To Guides

  • Basic Stereo Output Setup
  • Headphone Cue Monitoring
  • Eurorack to DAW Recording
  • Mono Source with Stereo Width
  • Live Performance with Headphone Blend
  • Gain Staging for Clean Signal
  • Wide Ambient Stereo Field
  • Mode Switch Routing Exploration

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

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