Moog MF-101S Lowpass Filter
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What you need to know
What you need to know
- The classic Moog 4-pole cascade filter is at the heart of the sound, featuring an envelope follower for lively and responsive filter movements.
- Meticulous emulation of a legendary effects pedal designed in 1998 by Bob Moog, aimed at capturing the character and musicality of the original.
- Modern studio workflow: the effect is faithfully reproduced sonically and enhanced with practical features for contemporary production.
- Virtual CV connections to finely control and modulate multiple instances of the effect within the same project.
Manufacturer Information
Moog
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What the Moogerfooger MF-101S Lowpass Filter Is For
The Moogerfooger MF-101S Lowpass Filter is a "lowpass" filtering effect designed to sculpt timbre with a Moog-typical analog signature. It is used both in mixing (cleaning, softening, focusing a track) and in sound design (expressive cutoff sweeps, musical resonance, dynamic variations). Its envelope follower enables "auto-wah" filter effects and dynamic responses that follow playing intensity or signal level, making it a natural ally for guitars, basses, synths, drum machines, and even creative buses.
Main Features
The Moog Character: A Musical and Expressive 4-Pole Filter
The core of the effect relies on a 4-pole cascade filter in the Moog tradition, renowned for its warmth, smoothness in the high frequencies, and its ability to become highly expressive when resonance is increased. This type of filter is not just technically "correct": it is above all playable, with a response that highlights sources and enhances the sense of movement.
Envelope Follower: A Filter That Reacts to Your Signal
Thanks to the envelope follower, the filter can move automatically according to the input level. The result: dynamic and organic effects, perfect for funk grooves, talking bass lines, breathing synth leads, or percussion that gains depth. In production, this often avoids the need for extensive automation: playing (or signal dynamics) becomes a modulation source in its own right.
Modern Production: Multiple Instances and Advanced Modulations
In the studio, multiple processing layers are often stacked on different tracks. The virtual CV connections facilitate full control and modulation of different effect instances within a project, enabling creative interactions: making one filter "respond" to another, synchronizing movements, or creating coherent variations across tracks. This approach is ideal for building textures, transitions, and dynamic build-ups while maintaining sonic coherence.
Downloadable Product and Activation
This is a full software available as a download. The activation code is provided on the invoice after order processing. Installation and activation require an Internet connection as well as the use of the iLok License Manager, in accordance with the specified protection method.
Technical specifications
| Type | Full software | Downloadable | Yes |
| License validity | Unlimited | Mac OS (64-bit) | from 10.13 |
| Copy protection | iLok 2 / iLok 3 / Machine License | Minimum CPU | Apple Silicon, Intel Core |
| Simultaneous activation | 3 | Minimum RAM | 8 GB |
| Windows | from 10 (64-bit) | ||
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Questions frequently asked
Is the MF-101S filter suitable for bass or guitar?
Its envelope follower reacts the cutoff frequency to the signal level, enabling auto-wah effects on guitar and bass. The 4-pole cascade filter delivers a Moog-style response with musical resonance.
Can this filter be used for synths and drum machines?
Synths, drum machines, and creative buses can be processed to soften the tone or create cutoff sweeps. The resonance enhances the sonic movement.
How do modulations work between multiple instances?
Virtual CV connections allow control and modulation of different effect instances within the same project. It becomes possible to synchronize their movements or have one filter respond to another. This feature is used to build coherent textures and transitions.
Is MF-101S Lowpass Filter compatible with Mac and Windows?
Compatibility is specified from Windows 10 64-bit and macOS 10.13 64-bit. An Apple Silicon or Intel Core processor, as well as a minimum of 8 GB RAM, are required.
How to install and activate the MF-101S license?
The software is provided as a download, with an activation code available on the invoice after order processing. Activation requires an Internet connection and the iLok License Manager; up to 3 simultaneous activations are allowed via iLok 2, iLok 3, or machine license.
