- controls the speed/rate of the LFO wave that controls the effect
- controls the depth/amplitude of the modulation (the size of the range in which the effect sweeps).
- sets the amount of effected signal fed back into the effect (for a stronger effect)
- 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.
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