rabid-elephant-knobs

Rabid Elephant Knobs

Precision CV processing meets DJ-style performance

14 HP Eurorack module

Knobs is a precision voltage processing utility designed for performing with CV signals like a DJ console. It features dual processing channels with attenuversion, offset, and slew limiting, plus a linear crossfader for morphing between processed signals.

Features

  • RGB LED signal monitoring
  • Precision attenuverters with 0.02% error
  • Slew limiting up to 23 seconds
  • Linear crossfader with CV control
  • Normalization breaking for flexible routing
  • Rail-to-rail operation

Controls & Jacks (29)

  • OFFSET A— Adds a fixed voltage offset to channel A output, shifting the CV range up or down
  • Gain B— Sets the output voltage range and attenuversion amount for channel B
  • Gain A— Channel A gain/attenuversion control
  • SLUR A— Portamento/slew rate for channel A output, smoothing voltage transitions for glide effects
  • SLUR B— Portamento/slew rate for channel B output, smoothing voltage transitions for glide effects
  • XF In B— Crossfader input B, normaled from Out B
  • In B— Channel B signal input, normaled to +5V DC
  • OFFSET B— Adds a fixed voltage offset to channel B output, shifting the CV range up or down
  • XF In A— Crossfader input A, normaled from Out A
  • AUX B— Auxiliary CV input for channel B; adds to the internally generated voltage
  • In A— Channel A signal input, normaled to +5V DC
  • OUT B— Main CV output for channel B carrying the processed control voltage
  • AUX A— Auxiliary CV input for channel A; adds to the internally generated voltage
  • XF CV— Crossfader CV input, clamped at +/-5V
  • MID OUT— Mid-point CV output tapped from the internal voltage processing stage
  • OUT A— Main CV output for channel A carrying the processed control voltage
  • Crossfader LED A— Crossfader position indicator LED, A side
  • Crossfader LED B— Crossfader position indicator LED, B side
  • Crossfader— Linear crossfader between Channel A and B outputs
  • Crossfader Center— Illuminates green when crossfader is at exact center position
  • Active— 3-position mode switch for Channel A: Zero/Bypass/Active
  • Channel A Level— RGB indicator showing Channel A output level and polarity
  • Channel B Level— RGB indicator showing Channel B output level and polarity
  • ENG— LED indicating the module is powered and engaged
  • RND— Enables random voltage generation mode, adding controlled randomness to the output
  • Gain CV A— CV input for voltage control of channel A gain amount
  • Channel B Slur— RGB indicator showing Channel B post-slur signal level
  • Channel A Gain— RGB indicator showing Channel A gain signal level and polarity
  • Channel A Slur— RGB indicator showing Channel A post-slur signal level

How-To Guides

  • CV Transposer
  • Ring Modulator
  • Control Two Targets with One Knob
  • Trigger Slowly Changing Signal
  • Multiple Precision Attenuverters
  • Crossfading CV Processing Chains
  • Generate High Control Voltages
  • Linear VCA with Offset

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

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