Moogerfooger MF-105S MuRF plugin is a digital recreation of Moog’s iconic MF-105 analog effects pedal, bringing its unique sonic capabilities to the realm of digital audio workstations. Originally introduced in 2004, the MuRF (Multiple Resonant Filter Array) combines an 8-band array of resonant filters with a pre-programmed animation module, allowing for dynamic modulation of filter levels. This plugin version faithfully captures the distinctive sound and organic parameter interactions of the original hardware, while introducing new features tailored for modern music production workflows. The MF-105S retains the core functionality of its analog predecessor, offering both bass and mid-frequency voicings for its filter array, along with an animation section that generates envelope sequences to modulate the filter levels. The plugin expands on this foundation with additional capabilities like a built-in pattern editor, stereo functionality, and extensive modulation options through virtual CV inputs.
Pros:
• Authentic recreation of the original MF-105 MuRF’s unique sound and behavior
• Expanded feature set including pattern editor and stereo functionality
• Seamless integration with other Moogerfooger plugins through virtual CV connectivity
Cons:
• Limited bandwidth may restrict its effectiveness on full-range audio material
The MF-105S MuRF plugin boasts an impressive array of features that both honor its hardware predecessor and expand its capabilities for the digital domain. At its heart is the 8-band resonant filter array, which can be switched between bass and mid-frequency voicings. Each filter band is represented by a vertical slider on the interface, allowing for manual adjustment of individual filter levels. The animation module is a key component of the MuRF’s sound, generating sequences of envelopes that modulate these filter levels automatically. Users can select from 11 preset animation patterns for each filter voicing, or create custom patterns using the built-in 64-step sequencer.
The envelope shape applied to each triggered filter band is adjustable, ranging from short percussive blips to longer decays or even reverse envelope shapes. This flexibility allows for a wide variety of rhythmic and tonal effects, from subtle pulsing textures to dramatic filter sweeps. An internal LFO provides additional subtle modulation to the filter frequencies, adding a phaser-like quality to the effect.
New to the plugin version is a dedicated pattern editor, enabling users to craft their own animation sequences with precision. This feature greatly expands the creative possibilities of the MuRF, allowing for tailored rhythmic effects that can be synchronized to a project’s tempo. The plugin also introduces a stereo mode, which can either apply the effect uniformly across both channels or split the filter bands for a wider stereo image.
The MF-105S incorporates virtual CV (Control Voltage) inputs, a nod to the modular synthesis roots of the original Moogerfooger pedals. These inputs allow for complex modulation routings between multiple instances of Moogerfooger plugins within a project. Parameters such as animation rate, LFO rate, envelope shape, LFO amount, and mix can be modulated by other Moogerfooger plugins or by built-in modulation sources like DC offset.
The plugin’s interface closely mimics the aesthetic of the hardware unit, with skeuomorphic controls that provide a tactile feel to the user experience. However, it also includes modern amenities such as a resizable interface and preset management, making it more adaptable to various workflow preferences.
When comparing the MF-105S MuRF to similar plugins, it stands out for its specific combination of resonant filtering and rhythmic modulation. While many filter plugins offer resonant multiband filtering, and others provide step sequencing or envelope following, the MuRF’s integration of these elements creates a unique sonic palette. Its closest competitors might include modulation-heavy multi-effects like Native Instruments’ The Finger or Sugar Bytes’ Effectrix, but the MuRF’s focus on resonant filtering gives it a distinct character. Some filter-focused plugins like FabFilter’s Volcano 2 offer more precise control over individual filter characteristics and more extensive modulation options. However, they lack the MuRF’s specialized animation engine and its particular flavor of Moog filtering. The MuRF’s strength lies in its ability to quickly generate rhythmic, harmonically rich textures that are difficult to achieve with more generalized effects plugins.
This plugin is best for:
• Electronic music producers seeking unique rhythmic filter effects
• Sound designers looking to add movement and texture to static sounds
• Guitarists and synthesizer players wanting to emulate classic Moog pedal effects in the box
• Experimental musicians exploring unconventional modulation and filtering techniques
Moogerfooger MF-105S MuRF plugin successfully translates the distinctive character of the original hardware into the digital realm while expanding its capabilities for modern production environments. It excels at creating rhythmic, harmonically rich textures and can breathe life into static sounds with its dynamic filter modulations. The addition of features like the pattern editor and virtual CV connectivity significantly enhance its flexibility and creative potential. However, users should be aware of its tendency to impart a specific tonal coloration, which may limit its versatility on full-range material. The MuRF is not a subtle effect, and its strong character may not suit all production styles or genres. Nonetheless, for those seeking to add unique, pulsating filter effects to their sonic palette, the MF-105S MuRF offers a powerful and inspiring tool. Its faithful recreation of the original Moogerfooger’s analog warmth, combined with the convenience and expanded feature set of a plugin, makes it a valuable addition to any digital audio workstation.