Happy Nerding MMM VCF
Dual Moog ladder filter with multimode outputs
6 HP Eurorack module
The MMM VCF is a dual voltage controlled filter based on Bob Moog's famous transistor ladder design, expanded with Band Pass and High Pass modes not available in the original. It can function as a stereo filter or be patched in different combinations, offering versatile spectral modification with vanishingly small noise and bleed.
Features
- Dual VCF with common controls
- Moog transistor ladder core
- Three simultaneous filter outputs per channel
- Self-oscillation capability
- Reverse power protection
- Low noise and bleed design
Controls & Jacks (28)
- FREQ 2 — Cutoff frequency for filter 2 (black side), 20 Hz - 22 kHz
- FM 2 — FM attenuator for filter 2 (black side)
- FM 1 — FM attenuator for filter 1 (silver side)
- FREQ 1 — Cutoff frequency for filter 1 (silver side), 20 Hz - 22 kHz
- RES 1 — Resonance for filter 1 (silver side), self-oscillation capable
- BP 2 Mult — Band-pass output mult, filter 2
- RES 2 — Resonance for filter 2 (black side), self-oscillation capable
- LP 1 — Low-pass output, filter 1
- HP 2 — High-pass output, filter 2
- BP 1 Mult — Band-pass output mult, filter 1
- BP 1 — Band-pass output, filter 1
- Audio In 1 — Audio input, filter 1
- HP 1 — High-pass output, filter 1
- LP 2 — Low-pass output, filter 2
- FM CV 2 — FM CV input, filter 2 (0-5V)
- HP 1 Mult — High-pass output mult, filter 1
- HP 2 Mult — High-pass output mult, filter 2
- BP 2 — Band-pass output, filter 2
- FM CV 1 — FM CV input, filter 1 (0-5V)
- LP 1 Mult — Low-pass output mult, filter 1
- Audio In 2 Mult — Audio input mult, filter 2
- Audio In 2 — Audio input, filter 2
- Audio In 1 Mult — Audio input mult, filter 1
- LP 2 Mult — Low-pass output mult, filter 2
- RES 1 LED R — Resonance indicator, filter 1 (right)
- RES 2 LED R — Resonance indicator, filter 2 (right)
- RES 2 LED — Resonance indicator, filter 2
- RES 1 LED — Resonance indicator, filter 1
How-To Guides
- Stereo Filter Sweep
- Self-Oscillating Drone
- Multi-Output Spectral Split
- Audio Rate FM Filtering
- Cascaded Dual Filtering
- Resonant Percussion Hits
- Focused Lead Synthesis
- Independent Stereo Modulation
Explore the interactive MMM VCF panel on BleepDex — tap any control to learn what it does.
