Rolls RFX-920 Phase O' Vibe - Phase Shifter / Vibrato


  • Speed
    controls the speed/rate of the LFO wave that controls the effect
  • Depth
    controls the depth/amplitude of the modulation (the size of the range in which the effect sweeps).
  • Regen
    sets the amount of effected signal fed back into the effect (for a stronger effect)
  • Phaser/Vibrato
    switches between phaser and vibrato (vibe)



The RFX920 features a six-stage regeneration circuit for a rich, full sounding phaser effect, and with the touch of a switch, it becomes a smooth, classic vibrato effect.

Most recent forum threads


Where to find one?

your browser doesn't support AJAX?

rfx-920 low frequency oscillator lfo-controlled fx pedal stompbox stomp box guitar effects pedal fazer phaser modulation modulate time-based lfo phazer
Syndicate content

Subscribe to our newsletter

Also check out Effects Database's social media accounts: