



There’s a million fat-sounding Eurorack filters out there… but they don’t all bring you lasagna at work.
Ripples delivers a classic, big-sounding analog four-pole filter in a small 8-HP package, continuing Mutable Instruments’ lineage of warm and tasty filters started by the Shruthi SMR4 mkII and 4-Pole Mission.
3 filter modes are available: 2-pole band-pass, 2-pole low-pass, and 4-pole low-pass.
Self-oscillation is available for all modes and produces a clean sine-wave on the LP4 output. Unlike many classic 4-pole designs, this filter does not suffer from “loudness drop” when resonance is increased. The resonance loudness compensation circuit brings a slight tone coloration reminiscent of the Roland SH/Jupiter filters, with a very round and “liquid” resonance.
The 4-pole low-pass output is additionally sent to a VCA. This makes Ripples a good final stage module for an inexpensive/space-constrained subtractive synthesis synth voice.
50 Wing Lok Street
Sheung Wan, Hong Kong
Guangfu S. Rd.
Songshan Dist.
Taipei City 105
Omori 3381, RD1 Turangi
Waikato, North Island
Entresuelo Izquierda
03004 Alicante
855 Ringwood Road
Bournemouth BH11 8NE
9 Greenland Street
Camden Town
London NW1 0ND
Wheaton, MD 20902
1603 E. 9 Mile Rd, Ferndale, MI 48220
Nashville (showroom)
2826 Dogwood Place, Nashville, TN 37204
Los Angeles (showroom)
1176 West Sunset Blvd, L.A., CA 90012
50 Wing Lok Street
Sheung Wan, Hong Kong
Guangfu S. Rd.
Songshan Dist.
Taipei City 105
Omori 3381, RD1 Turangi
Waikato, North Island
Entresuelo Izquierda
03004 Alicante
855 Ringwood Road
Bournemouth BH11 8NE
9 Greenland Street
Camden Town
London NW1 0ND
Wheaton, MD 20902
1603 E. 9 Mile Rd, Ferndale, MI 48220
Nashville (showroom)
2826 Dogwood Place, Nashville, TN 37204
Los Angeles (showroom)
1176 West Sunset Blvd, L.A., CA 90012
A multimode filter
- 2-pole band-pass.
- 2-pole low-pass.
- 4-pole low-pass.
- 4-pole low-pass processed by an internal VCA - the perfect “end of subtractive chain” output!
All the CV inputs you need
- Un-attenuated frequency CV, calibrated for 1V/Oct tracking of the self-oscillation tone over 4 octaves.
- Frequency CV with attenuverter.
- Resonance CV. Self oscillation starts at 4V. Control voltages above 5V are non-linearly compressed, for fine control of resonance overdrive.
- VCA level for the LP4>VCA output.
Specifications
- Cutoff knob range: 18Hz to 18kHz.
- Fully analog, based on the V2164 low noise/distortion quad VCA chip, and LM13700 OTA for that extra bit of non-linearity.
- Frequency CV inputs impedance: 100k.
- Audio input impedance: 75k.
- Resonance and VCA CV input impedance: 30k.
- All CV inputs handle audio-rate modulations.