MU-FX Octave Divider

Just like the original Octave Divider pedal… Only Better!

The Mu-FX Octave Divider retains all the versatility and accurate tracking of the original Musitronics Mu-tron Octave Divider pedal, but now in a “mini-Mu” housing that has the authenticity of the original in a pedal-board friendly size. It includes the same Octave Down effect and Green Ringer that made the original Octave Divider so popular with Jerry Garcia, Frank Zappa, Chris Squire, Larry Graham and others. Made in the USA with modern manufacturing techniques, the enhanced reissue offers more versatility of operating modes and features.

Why buy an Octave Divider clone, DIY Octave Divider kit or high-priced vintage Mu-Tron Octave Divider when you can have the authentic modern update from Mu-Tron III inventor and Musitronics co-founder, Mike Beigel?!?


  • TONE varies the tonal “brightness” of the octave-down effect
  • BASS adjusts the volume of the octave-down (BASS) circuit in Effect mode
  • - Unity gain is at approximately 8 on the dial
  • DRY adjusts the volume of the instrument input signal in Effect mode
  • - Unity gain is at approximately 8 on the dial
  • RINGER adjusts the volume of RINGER output signal in Effect mode
  • - Unity gain is at approximately 8 on the dial
  • STABILIZE switch improves the reliability of tracking of the octave-down effect for guitar and other plucked instruments
  • SOLO SEL switch is used to select whether BASS (octave-down only) or RING (RINGER only) will be activated by the SOLO footswitch
  • EFFECT footswitch switches between EFFECT (Purple LED) and BYPASS (Red LED) output
  • SOLO footswitch activates the effect selected with the SOLO SEL switch (Effect Off – Red LED/BASS – Blue LED/RINGER – Green LED)


  • 1/4″ True Bypass Switching Input Jack
  • 1/4″ Active Bypass Switching Input Jack
  • 1/4″ Output Jack
  • Signal to Noise Ratio: 85dB or better
  • Input Impedance: 390K Ohms
  • Nominal Input Level: -10dBu
  • Output Impedance: 150 Ohms
  • Nominal Output Level: -10dBu
  • Maximum Output Level: +16dBu
  • Case: 2mm aluminum
  • Weight: 16.3oz/462g (unit only)
  • Dimensions: 5.65” x 4.05” x 1.625”
  • 12VAC 200MA
  • 1 year limited warranty
  • Made in USA to ISO 9001 standard