TC-Helicon Voicetone Double - I dont hear any difference when I turn the Pitch, Time, µMod or Overdub knobs.; My sound is distorted.; How do I restore the factory presets to A and B?

effect on, and the Input Light is never flashing red, try
reducing the μMod and Overdub levels for the current
patch.
b. If Double’s Input never flashes red, and you still hear
distortion, the gain on your PA mixer channel is likely set
too high.
c. If your sound is distorted when the effect is off,try
turning the Input Knob to the left until the Input Light is
green and sometimes orange. If the Input Light is still
flashing red, reduce the input level, sing further away
from the microphone, or send the mic signal through an
aux send on an external mixer.
6. How do I restore the factory presets to A
and B?
Hold the Bank Up and Down buttons while you
apply power. After the led finishes flashing the presets
have been restored.
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FAQ & Troubleshooting