
Anthony Easton
The Micro-Tron IV by Mu-Tron is a compact and convenient envelope filter pedal designed to deliver classic Jerry tone and Bootsy funk in a pedalboard- friendly size. It is powered by an industry-standard 9V DC power supply and features an OUTPUT level control with the ability to footswitch select between UP and DOWN drives. The pedal is suitable for use with guitar, bass, keys, horns, and harmonica.
Key Specifications:
- 1/4" Input Jack
- 1/4" Output Jack
- 1/8" CV Input Jack
- 1/8" CV Output Jack
- 9V DC, 52 mA draw
- Weight: 1 lbs
- Dimensions: 4.75" x 2.5" x 2.25"
- 1 Year Limited Warranty
- Made in the USA
The Micro-Tron IV features three filter types: low, high, and band pass, as well as low and high frequency sweep ranges. It also includes standard CV input to accept an expression pedal without modification and the ability to send envelope Control Voltage to other units such as the Phasor III and Bi- Phase pedals.
The pedal's controls include MODE (LP, BP, HP), RANGE (LO, HI), LEVEL, PEAK (or Q), GAIN, and ON/OFF Footswitch for engaging or disengaging the envelope filter effect. Additionally, it has an UP/DOWN Footswitch for selecting between "auto-wah" and "down swoop" sounds.
The durable, anodized aluminum housing has a small footprint and sturdy hardware, making it suitable for rigorous use. The Micro-Tron IV also offers Universal BypassTM, allowing users to select either analog buffered or relay- based True Bypass, and features a USB port for class-compliant USB-MIDI connectivity.
Watch the latest video demos and reviews for the Micro-Tron IV from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

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Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton