A faithful software recreation of Moog’s classic MF-105 MuRF pedal, delivering an eight-band resonant filter array with animated patterns, stereo routing, and flexible modulation for creative audio processing.
Purpose and Legacy
The MF-105S MuRF is a plugin reimagining of Moog’s iconic analog effects pedal, originally designed by Bob Moog. It combines an eight-band resonant filter array with an animation module that generates rhythmic envelope patterns, creating a moving, vocal-like filter effect. This digital version captures the organic interaction of the hardware while expanding its reach for modern production.
Built for any audio source, from guitars and synths to vocals or full mixes, the MF-105S transforms static sounds into animated, textured performances. Its roots in modular synthesis shine through in the way parameters respond musically, offering a hands-on, expressive tool that invites experimentation and live tweaking.
Key Capabilities
The plugin recreates the original’s dual bass and mid frequency voicings for the filter bank, allowing you to shape the tonal character. The pre-programmed animation patterns generate rhythmic modulation of the filter levels, producing everything from subtle wobbles to dramatic, sequenced sweeps. A new pattern editor lets you customize these patterns or draw your own, unlocking limitless rhythmic possibilities.
Stereo functionality enables you to route all filters to both channels for a thick mono-compatible sound or split them across the stereo field for a wide, spacious effect. An alternate envelope bank provides a fresh set of shapes, adding variety. Multiple instances can run simultaneously, and onboard presets offer instant recall and inspiration.
Workflow and Modulation
In a typical workflow, you insert the MF-105S on a track, select a pattern, and adjust the filter voicing to taste. The pattern editor allows for precise control over the envelope steps, letting you craft complex, evolving filter rhythms that sync with your project tempo. This makes it ideal for adding movement to pads, arpeggios, or rhythmic stabs.
Control voltage inputs mirror the hardware’s CV connectivity, enabling modulation of the animation rate, internal LFO rate, envelope shape, LFO amount, and mix. Each CV input includes an attenuator to soften the modulation depth, giving you fine command over the effect’s behavior. This opens up deep sound design possibilities, whether you’re using the plugin’s internal LFO or an external DAW automation source.
Practical Applications
The MF-105S excels at creating animated filter effects on synthesized leads and basses, adding a unique, living quality. On guitars, it delivers the classic MuRF sound, turning simple chords into cyclical, filter-swept patterns. Vocal tracks can be subtly or aggressively modulated, producing robotic or vocal formant-like textures.
For rhythmic purposes, program the pattern editor to sync with your track’s tempo, creating gated filter sequences that drive the groove. In a mix, it can be used bus-style to impart movement across a whole group of instruments. The combination of pattern animation and stereo spread makes it a creative tool for electronic, experimental, and even traditional genres, encouraging sonic exploration.
Key features
- Eight-band resonant filter array with bass and mid voicings
- Animation module with pre-programmed envelope patterns
- Pattern editor for customizing or creating new animations
- Stereo routing with mono and split mode options
- Alternate envelope shape bank
- CV inputs for rate, LFO, envelope, and mix with attenuation
Best for
Musicians and producers seeking an animated filter effect for synths, guitars, or vocals, especially those who enjoy hands-on pattern programming and CV-style modulation for rhythmic, experimental sound design.