Bastl Instruments Waver
analog wave-folding mixer and signal disruptor
8 HP Eurorack module
Waver is a fully analog wave-folding mixer and signal disruptor that combines a 3-input bipolar mixer with a wave folder, square shaper, and feedback/clipping break circuit. It is designed for mind-melting drones, harmonic saturation, and experimental signal destruction. The module rewards hands-on exploration with two outputs — pre and post shaper — enabling stereo or feedback patching.
Features
- 3-input analog mixer with individual amplitude faders
- Bipolar (thru-zero) VCAs on inputs A and C with dedicated CV jacks and attenuverters
- A CV input normalized to C CV input for cross-fading and dual modulation
- Input B with direct-to-mixer path and B PASS switch to bypass shaper section
- Voltage-controlled wave folder with harmonic enrichment and frequency multiplication
- Square shaper producing 3-step square wave output for harsh timbres
- Shape crossfader blending clean mix to folded to folded-and-squared
- Shape CV input with attenuator for voltage-controlled shaper modulation
- Break section with offset/clipping mode acting as inverse VCA
- Feedback mode routing square shaper output back to mix input for distortion and suboctave effects
- MIX output (pre-shaper) for feedback loops or stereo use
- SHAPE output (post-shaper) with soft clipping and bass boost
Controls & Jacks (21)
- Break CV In
- Shape Out
- Mix Out
- A In
- B In
- C In
- A CV In
- Shape CV In
- C CV In
- Break
- Shape
- Pushbutton
- Break LED
- Shape Crossfader
- Shape Mode LED
- A CV Pot
- C CV Pot
- B Pass
- A Amplitude
- B Amplitude
- C Amplitude
How-To Guides
- Pulsing Mind-Melting Drone
- Three-Oscillator Folded Drone
- Analog Pulse Width Modulation
- Ring Modulation via Bipolar VCA
- A-to-C Cross-Fade with One LFO
- Dual Modulation Extreme
- Fade-In to Fade-Out Flip
- Stereo Imaging from One Module
- Feedback Drone Dissolution
Explore the interactive Waver panel on BleepDex — tap any control to learn what it does.