Always consult the Owners Manuals and the FAQ first

Ring Modulator block

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Ringmod block.png

Available on which Fractal Audio devices

  • Axe-Fx III: 1 block
  • Axe-Fx II: 1 block
  • AX8: 1 block
  • FX8: 1 block

X/Y and channels

  • Axe-Fx III: 2 channels
  • Axe-Fx II: no
  • AX8: no
  • FX8: no

What is a Ring Modulator

A Ring Modulator outputs the sum and difference of frequencies in multiple waveforms, often resulting in 'robotic' sounds.

More information in Wikipedia


The Ring Modulator has three types:

  • Classic
  • SSB Upper
  • SSB Lower

“SSB Upper” and “SSB Lower” select the upper and lower sidebands of the modulation.


With TRACKING enabled the frequency of the oscillator tracks the pitch of the notes on the fretboard.

Parameters table

Parameter Axe-Fx III Axe-Fx II AX8, FX8
Type yes
Frequency yes
Frequency Multiplier yes
High Cut Frequency yes
Pitch Tracking yes

Special Ring Modulator effects


The Ring Modulator works great as an Octaver (adding a low octave). Enable TRACKING, set FREQ to 500 Hz, and turn down HIGH CUT FREQUENCY to 500 Hz or lower.


You can configure the Ring Modulator to act as a Tremolo, by turning down FREQUENCY all the way.

Fixed Flanger

"The Resonator block is basically a type of fixed flanger. Well, four of them in parallel actually." source

Pedal control

Attach a pedal to the FREQ parameter, to create an "Evil Whammy" effect.