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.
