Mu-FX Tru-Tron 3X Dr. No Joyo Ironman series Heavy Electronics 
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Rastop Ring Modulator



  • Volume
    controls the output volume
  • Frequency
    controls the ring modulation frequency
  • Balance
    controls the mix between the clean (direct) signal and the ring modulation signal



Some people hate it, some people love it, Jeff Beck tunes it right and wails. I agree, a little too scientific, but what a crazy toy!

This one has Balance knob- you add ring modulation to straight( not so straight- its Octave Doubler sound, Octavia vs. Tychobrahe vs. Green Ringer vs.…..)

NEW! "Envelope" option is available now.


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envelope-controlled envelope follower amplitude controlled fx pedal stompbox stomp box guitar effects pedal ringmod ring modulation ring modulator pitch/octave octaver frequency modulation modulate time-based lfo octavers octave 1 octave up octave up higher octave octave higher
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