Mu-FX (by Mike Beigel) Mu-Tron 3X



Mu-FX (by Mike Beigel)

Mu-FX™ | Mru-Tron 3X™ - Modern Vintage Analog™

The Mru-Tron 3X™ is the modern all-analog refinement of the classic Mu-Tron III™ envelope controlled filter. Mike Beigel, inventor/designer of the Mu-Tron III™ and co-founder of Musitronics Corp., has retained all the mojo that made the 1972 unit so popular with Stevie Wonder, Jerry Garcia, Bootsy Collins, Larry Coryell, Frank Zappa, Carlos Santana, Joe Zawinul, George Duke and many more. The Tru-Tron 3X™ is the closest you’ll find to the original Mu-Tron, because at its heart—it is.

"The Mru-Tron 3X can sound just like the Mu-Tron III™ — and on top of that, it does a lot more. Sounds great on everything. It is perfect." - Bieke, effectsdatabase


A bounty of bootylicious wah tones for bass awaits you. From synth-like swells to fast quacks and sqwacks. This attack-sensitive pedal lets you play into it and will get the funk out of your face.


Let’s get it on with this ultimate guitar funkalizer. Perfect for Funk, Reggae, Ska, Jazz, R&B and Rock. Create sounds that your foot can only dream of. With stability that will never let you down.


From funky to extreme funky at the flip of a switch. The possibilities for expression are endless. Use as a touch-sensitive device or manually adjust the controls while you play.


If you can plug it you can play it. Sax, flute, harmonica, trombone, vocals—the high-gain input channel will even handle most microphone levels.


  • 1/4" Input and Output Jacks
  • True Bypass/Convertible to Active
  • 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: 7” x 4 15/16” x 2 1/4”
  • Includes 12VAC 200MA adapter
  • 1 year limited warranty
  • Made in USA to ISO 9001 standard

Included in the box:

  • Tru-Tron 3X
  • 12VAC power supply
  • quick start guide



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