More Feedback Machine

More Feedback Machine has always been a synonym for ultra-flexible delay effects ranging from bread & butter to weird rhythmic deconstruction. In the early days of native plugins, MFM1 was well ahead of its time. MFM2 carries on the tradition and extends it into the future.

The idea behind MFM was to give the musician as much control over 4 individual delay lines as possible, have them interact, and offer easy ways to modulate delay parameters in realtime.


Point your mouse at the stars and learn more about each feature

Look Control

Flip through UI skins and change the size of
the editor window from tiny to cinematic.


MFM's infamous Panic button instantly stops feedback from building up uncontrollably.

No worries though – each delay has a built-in limiter. MFM is mostly harmless!

Feedback Matrix

The heart of MFM2 is the feedback matrix in the center of the window. Several pre-defined matrix setups cover the most common needs: ping pong, multitap, complex delay networks (for reverb-type effects) etcetera.

The User Matrix lets you send any amount of signal (either normal or inverted) from any delay line to any delay line. Define your own complex network.

Delay Lines

Four identical delay lines provide four individual taps, each with its own panning, filter, output level and feedback options.

Like any sophisticated delay unit, MFM2 can sync to host tempo. If you prefer setting milliseconds, you can do that as well. To create comb filter type effects, chromatically tune a few short delays.


Each delay line has a multimode filter with options such as lowpass, bandpass and highpass modes.

Filters can be placed before or after each delay line, or within a delay line's own feedback path (great for progressive tonal changes).


Four tempo-synched low frequency oscillators, each with a wide range of different waveforms. Use them to create cyclic delay and filter effects.

Modulation Matrix

Although most parameters have their own dedicated modulation knob, sometimes you would like to add another source or modulate something that isn't directly available.

Four general-purpose modulation slots let you route MIDI controls, LFOs or envelopes to any knob in the MFM2 window.


Two multi-stage envelope generators for evolving modulations. Triggered via MIDI or MFM2's own keyboard, you can use these to create precisely synchronized delays, or let them run freely for never-ending soundscapes.

Feedback FX

Delay line pairs 1+2 and 3+4 each have a bunch of so-called Matrix Effects that you can use to mangle the delay feedback even more.

Matrix effects include saturation, bit reduction, frequency shifting (sideband filter) and phasing.


Use a MIDI keyboard to tune delays to notes, and to retrigger MSEGS as well as LFOs.

MFM2's own keyboard lets you trigger MIDI notes even if your host can't send MIDI to effect plug-ins.


Two flexible compressors for dynamic delay effects. Applied to either the dry signal, the delay outputs 1+2 or 3+4, you can also select a side-chain input. So MFM2 is not only very good at strong echoes, it can even do multiple ducking delays.


MFM2 comes with numerous presets sorted into meaningful categories, so you can immediately start using MFM2 in your productions before learning how to make your own patches.


More Feedback Machine is all about feedback! The global feedback control gives you fast access to either the number of echoes or the density of soundscapes – or the sound of granular madness!

MFM2 can do...

  • ping-pong delay (no central tap)
  • ducking delays
  • chorus, flanging, resonance
  • reverbs and other ambiences
  • panning delays
  • frequency-shifted delays
  • degrading & distorting delays
  • filtered delays
  • endless loops
  • all sorts of compressed delays
  • keyboard-controlled (tuned) comb filter
  • massive glitch effects
  • any combination of the above
  • ... and so much more!

Introduction to MFM2

In little over 13 minutes, plugin tutorial maestro Dan Worrall explains nearly all you need to know about MFM2! Clear, informative, very easy to follow...

For more detailed information still, download the MFM2 User Guide (click the link on this page).

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