Micro-Tron III Vintage Silver

(2 customer reviews)


13 in stock


A compact, convenient and affordable version of the classic Mu-Tron III™ envelope filter

The NEW  Micro-Tron III is the newest reincarnation of the classic Mu-Tron III™ envelope filter. The Micro-Tron III provides all the classic Jerry tone and Bootsy funk, in a pedalboard-friendly size and powered by industry-standard 9V DC. We’ve also added an OUTPUT level control and the ability to footswitch select between UP and DOWN drives. It’s never been easier to cruise down “Shakedown Street” or get to “Higher Ground” – the Micro-Tron III sounds amazing on guitar, bass, keys, horns, harmonica… you name it!


  • MODE
    • LP (lowpass filter) passes all the signals below the peak and attenuates signals above the peak
    • BP (bandpass filter) passes signals only near the peak and attenuates signals below and above the peak
    • HP (highpass filter) passes all signals above the peak and attenuates signals below the peak
    • LO sets the filter sweep to a low range for most rhythm guitar, bass and lower fret uses
    • HI sets the filter sweep to a high range for accenting string harmonics or for up-the-neck and solo work
  • LEVEL controls the ouput volume of the effected signal
  • PEAK  (or Q) controls the filter audio response from very weak to very strong
  • GAIN controls the envelope and filter audio drive
  • ON/OFF Footswitch engages or disengages the envelope filter effect
  • UP/DOWN Footswitch
    • UP position produces familiar “auto-wah” sound – like a heel-to-toe sweep on a wah pedal
    • DOWN position produces a “down swoop” sound – like a toe-to-heel sweep on a wah pedal


  • 1/4″ Input Jack
  • 1/4″ Output Jack
  • 9V DC
  • Weight: 1 lbs
  • Dimensions: 4.75″ x 2.5″ x 2.25″
  • 1 Year Limited Warranty
  • Made in the USA

Micro-Tron III Quickstart Guide

Additional information

Weight 14 oz
Dimensions 5 × 4 × 4 in

2 reviews for Micro-Tron III Vintage Silver

  1. bodacious10 (verified owner)

    If you’re looking for Jerry in a small package, this is the Mu-Tron III for you. Easily the best one I’ve played. Excellent pedal!

  2. benpachisan (verified owner)

    I’ve been chasing that Bootsy Collins sound as long as I’ve been playing bass. I could never find an original Mu-Tron III that I could afford. I tried the copycats and other envelope filters over the years, but no matter how close I got to the sound I was looking for…I just wasn’t satisfied.

    The Micro-Tron III is just what Dr. Funkenstein ordered. I can’t believe how much better it sounds than the other pedals I’ve owned. It’s the real deal, I can finally make the sound that I’ve had in my head all these years.

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