Mutable Instruments Ripples

Multimode filter with character inspired by Japanese classics

8 HP Eurorack module

Ripples is a voltage-controlled multimode filter offering high-pass, band-pass, and low-pass outputs with switchable 2-pole/4-pole slopes. It features a soft-clipping input stage, voltage-controlled resonance, and a built-in VCA on the low-pass output for complete subtractive synthesis patches.

Features

• Simultaneous HP, BP, and LP outputs
• Switchable 2-pole/4-pole slopes
• Soft-clipping input with gain control
• Voltage-controlled resonance with clean self-oscillation
• Built-in VCA on LP output
• V/octave tracking over 4 octaves
• Japanese 80s filter character
• Dual input mixing

Controls & Jacks (12)

• RES— Cutoff frequency control from 20Hz to 20kHz
• FREQ— Resonance control, self-oscillation occurs at about 75%
• IN1 GAIN— Frequency modulation attenuverter for CV input amount and polarity
• HP— High-pass filter output
• IN2— Secondary audio input, mixed with IN1
• V/OCT— 1V/octave pitch tracking input for filter frequency
• LP— 4-pole low-pass filter output
• BP— 2-pole band-pass filter output
• IN1— Primary audio input with gain control
• RES CV— CV input for resonance amount
• FM CV— Frequency modulation CV input, scaled by FM attenuverter
• LP LEVEL— Low-pass VCA output with voltage-controlled level

How-To Guides

• V/Oct Calibration
• Overdriven Filter Setup
• VCA Filter Combo

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