This is the wiki for products made by Fractal Audio Systems, maintained by members of the community.
November 2025: the entire wiki has been updated with information about the new AM4 amp modeler.
Effects list
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The table below displays the available effect blocks per product.
The Owners Manuals also list the available effects in the products and the Blocks Guide describes them.
| Axe-Fx II | AX8 | FX8 | Axe-Fx III | FM3 | FM9 | VP4 | AM4 |
|---|---|---|---|---|---|---|---|
| Amp (2) | Amp | - | Amp (2) | Amp (1) | Amp (2) | - | Amp (1) |
| Cab (2) | Cab | - | Cab (2) | Cab (1) | Cab (2) | - | Cab (1) |
| Chorus (2) | Chorus | Chorus (2) | Chorus (2) | Chorus (2) | Chorus (2) | Chorus (4) | Chorus (1) |
| Compressor/Dynamics (4) | Compressor/Dynamics | Compressor/Dynamics (2) | Compressor/Dynamics (4) | Compressor/Dynamics (2) | Compressor/Dynamics (2) | Compressor/Dynamics (4) | Compressor/Dynamics (1) |
| Controllers | Controllers | Controllers | Controllers | Controllers | Controllers | Controllers | Controllers |
| Crossover (2) | - | - | Crossover (2) | - | Crossover (2) | - | - |
| Delay (2) | Delay (2) | Delay (2) | Delay (4) | Delay (2) | Delay (2) | Delay (4) | Delay (1) |
| Drive (2) | Drive (2) | Drive (2) | Drive (4) | Drive (2) | Drive (3) | Drive (4) | Drive (2) |
| - | - | - | Dynamic Distortion (2) | - | - | - | - |
| FXL | FXL | - | - | - | - | - | - |
| Enhancer | Enhancer | Enhancer | Enhancer (2) | Enhancer (2) | Enhancer (2) | Enhancer (4) | Enhancer (1) |
| (Feedback) Send/Return | - | - | (Feedback) Send/Return (2) | (Feedback) Send/Return (2) | (Feedback) Send/Return (2) | - | - |
| Filter (4) | Filter (2) | Filter (2) | Filter (4) | Filter (4) | Filter (4) | Filter (4) | Filter (1) |
| Flanger (2) | Flanger | Flanger (2) | Flanger (2) | Flanger (2) | Flanger (2) | Flanger (4) | Flanger (1) |
| Formant | Formant | Formant | Formant (2) | Formant (2) | Formant (2) | Formant (4) | - |
| Gate/Expander (2) | Gate/Expander | Gate/Expander (2) | Gate/Expander (4) | Gate/Expander (2) | Gate/Expander (4) | Gate/Expander (4) | Gate/Expander (1) |
| Graphic EQ (4) | Graphic EQ (2) | Graphic EQ (2) | Graphic EQ (4) | Graphic EQ (2) | Graphic EQ (4) | Graphic EQ (4) | Graphic EQ (1) |
| Input | Input | Input | Input (5) | Input (2) | Input (4) | Per preset | Per preset |
| - | - | - | IR Player (2) | - | - | IR Player | - |
| Looper | Looper | Looper (global) | Looper | Looper | Looper | - | - |
| Megatap Delay | - | Megatap Delay | Megatap Delay (2) | Megatap Delay | Megatap Delay (2) | Megatap Delay (4) | - |
| Mixer (2) | - | - | Mixer (4) | Mixer (4) | Mixer (4) | - | - |
| Multi Delay (2) | Multi Delay | Multi Delay | - | - | - | - | - |
| - | - | - | Multitap Delay (2) | Multitap Delay (2) | Multitap Delay (2) | - | |
| Multiband Compressor | - | - | Multiband Compressor (2) | Multiband Compressor | Multiband Compressor (2) | - | - |
| - | - | - | Multiplexer (2) | Multiplexer (2) | Multiplexer (2) | - | - |
| Noise gate (per preset) | Noise gate (per preset) | Noise gate (per preset) | Noise gate (per Input block) | Noise gate (per Input block) | Noise gate (per Input block) | Noise gate (per preset) | Noise gate (per preset) |
| Output mixer (per preset) | Output mixer (per preset) | Output mixer (per preset) | Output block (4) | Output block (2) | Output block (3) | - | - |
| Parametric EQ (4) | Parametric EQ (2) | Parametric EQ (2) | Parametric EQ (4) | Parametric EQ (2) | Parametric EQ (4) | Parametric EQ (4) | Parametric EQ (1) |
| Phaser (2) | Phaser | Phaser (2) | Phaser (2) | Phaser (2) | Phaser (2) | Phaser (4) | Phaser (1) |
| Pitch (2) | Pitch | Pitch | Pitch (2) | Pitch | Pitch | Pitch (2) | - |
| - | - | - | Plex Delay (2) | Plex Delay | Plex Delay | Plex Delay (4) | - |
| QuadChorus (2x) | - | - | - | - | - | - | - |
| - | - | - | Real-Time Analyzer | - | - | - | - |
| - | - | Relay (2) | - | - | - | - | - |
| Resonator (2) | - | - | Resonator (2) | Resonator (2) | Resonator (2) | Resonator (4) | - |
| Reverb (2) | Reverb | Reverb (2) | Reverb (2) | Reverb | Reverb (2) | Reverb (2) | Reverb (1) |
| Ring Modulator | Ring Modulator | Ring Modulator | Ring Modulator | Ring Modulator | Ring Modulator | Ring Modulator (2) | - |
| Rotary (2) | Rotary | Rotary (2) | Rotary (2) | Rotary (2) | Rotary (2) | Rotary (4) | Rotary (1) |
| - | - | - | Scene MIDI block | Scene MIDI block | Scene MIDI block | - | - |
| Synth (2) | Synth | Synth | Synth (2) | Synth | Synth | Synth (2) | - |
| - | - | - | Ten-Tap Delay (2) | Ten-Tap Delay | Ten-Tap Delay (2) | - | - |
| Tone Match | - | - | Tone Match | - | - | - | - |
| Tremolo/Panner (2) | Tremolo/Panner | Tremolo/Pan (2) | Tremolo/Panner (2) | Tremolo/Panner (2) | Tremolo/Panner (2) | Tremolo/Panner (4) | Tremolo/Panner (1) |
| Vocoder | - | - | Vocoder | - | - | - | - |
| Volume/Pan (4) | Volume/Pan (2) | Volume/Pan (2) | Volume/Pan (4) | Volume/Pan (2) | Volume/Pan (4) | Volume/Pan (4) | Volume/Pan (1) |
| Wah (2) | Wah | Wah (2) | Wah (2) | Wah (2) | Wah (2) | Wah (4) | Wah (1) |
