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Guitar Center
4.0 (21)
$249.00
Amazon
4.0 (8)
$309.00
Reverb
4.0 (11)
$349.00 New
$69.99 Used
Musician's Friend
5.0 (6)
$249.00

Average Price: $245

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$70

$251+

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Price History

Based on price data from 2 merchants for "Pigtronix Resotron Filter Effects Pedal". Prices shown reflect NEW condition. Tracking began May 3, 2026.

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Description

Discover the Pigtronix Resotron Filter Effects Pedal, an innovative multi-mode filter that breathes new life into the enchanting analog sounds of the '70s synthesizers. This is not your typical envelope pedal. The Resotron stands out as the first of its kind to track the pitch of the notes you play, moving the filter based on your musical choices, akin to a classic analog keyboard synthesizer.

Choose between UP and DOWN envelope modes for traditional velocity-sensitive filter movement that responds to your string strikes. Use the OSCILLATE function to turn your Resotron into an analog synthesizer pedal, with a voltage-controlled amplifier (VCA) in the output stage, which follows the volume of your input signal.

The Resotron boasts a multi-mode filter core set to Low Pass (LPF), Band Pass (BPF) or High Pass (HPF) modes, each offering a unique sonic character. Adjust the PEAK knob to emphasize frequencies below, at, or above the CUTOFF knob's position. Push the PEAK to its limits and experience extreme filter resonance or “Q”, up to the point of self-oscillation.

A built-in optical compression stage derived from the acclaimed Philosopher’s Tone pedal precedes the filter, providing a boost in volume and punch that can be mixed into the audio signal without affecting the envelope's SENSITIVITY. With active CV and passive TRS expression pedal inputs, the Resotron offers foot-controlled filter sweeps and outboard modulation. Not to forget the TRIGGER input that allows the use of an external audio source to modulate the filter.

Key Features:

  • First envelope pedal capable of pitch tracking
  • Multi-mode filter with Low Pass (LPF), Band Pass (BPF) or High Pass (HPF) modes
  • Oscillate function for analog synthesizer effects
  • Built-in optical compression stage derived from Philosopher’s Tone pedal
  • Active CV and passive TRS expression pedal inputs for filter sweeps and outboard modulation
  • TRIGGER input for external audio source modulation

Product specs

Brand Pigtronix
Model Resotron Analog Tracking Filter
Finish Silver / Graphic
Year 2019
Categories Filter and Wah Pedals
Pedal Format Standard

FAQs

What type of filter is used in the Pigtronix Resotron pedal?

The Pigtronix Resotron uses an analog filter based on the SSM2040 chip, which was famously used in the Prophet 5 and Octave CAT synthesizers, offering a vintage 70s synthesizer sound.

Is the Pigtronix Resotron suitable for bass guitar?

Yes, the Pigtronix Resotron is designed to work with both guitar and bass, providing versatile filtering effects suitable for various musical applications.

How does the Pigtronix Resotron differ from a standard EQ pedal?

Unlike a standard EQ pedal, the Pigtronix Resotron is an envelope filter that dynamically alters the tonal characteristics of your instrument's signal, creating unique, expressive soundscapes.

Can the Pigtronix Resotron be used with synthesizers?

Yes, the Pigtronix Resotron can be used with synthesizers, allowing you to infuse classic analog filter sounds into your synth patches for added texture and depth.

What power supply does the Pigtronix Resotron require?

The Pigtronix Resotron requires a standard 9V DC power supply, which is typical for most guitar effects pedals.

Pigtronix

Pigtronix

Pigtronix Resotron Pitch Following Envelope Filter Synthesizer Official Demo by Mike Hermans

Video thumbnail for Pigtronix Resotron Pitch Following Envelope Filter Synthesizer Official Demo by Mike Hermans by Pigtronix

Pigtronix Resotron Pitch Following Envelope Filter Synthesizer Official Demo by Mike Hermans

Pigtronix

Pigtronix

Video thumbnail for Pigtronix Resotron Deep Dive with Dave Koltai by Pigtronix

Pigtronix Resotron Deep Dive with Dave Koltai

Pigtronix

Pigtronix

Video thumbnail for Pigtronix Resotron Bass demo by Doug Wimbish Envelope Filter Synth Pedal by Pigtronix

Pigtronix Resotron Bass demo by Doug Wimbish Envelope Filter Synth Pedal

Pigtronix

Pigtronix

Video thumbnail for Pigtronix Resotron Filter Synth Jam with Teddy Kumpel and Bob Stander by Pigtronix

Pigtronix Resotron Filter Synth Jam with Teddy Kumpel and Bob Stander

Pigtronix

Pigtronix

Video thumbnail for The Resotron Tracking Filter by Pigtronix - The Shakedown Sound Series by PJ and the Beard

The Resotron Tracking Filter by Pigtronix - The Shakedown Sound Series

PJ and the Beard

PJ and the Beard

Reviews

PROS

  • Unique oscillate switch for innovative sound manipulation

  • High pass filter option for niche sound customization

  • Exceptional envelope filtering, offering detailed sound shaping

  • Smooth, high-quality knobs for precise control adjustments

  • Outstanding sound quality, rivaling vintage and expensive models

  • Built-in op-amp and compressor for responsive filter control

  • Can produce vocal wah and synth sounds effectively

  • Includes a built-in oscillator for additional sound exploration

  • Compact design packs many features into a small package

CONS

  • Oscillate button and high pass filter may confuse traditionalists

  • Requires significant signal processing for full musical use

  • Small switches and labels can be difficult to use

  • Gain staging can be problematic, requiring external solutions

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Pigtronix Resotron Filter Effects Pedal.

Features and functionality

  • The Resotron can function as a state variable filter with LPF/HPF/BPF capabilities when sensitivity is kept low, rather than a typical envelope filter.

    Source
  • The Resotron's built-in oscillator allows for unique ring modulator-type sounds, which can become extremely experimental and borderline unusable at certain settings.

    Source

User experience

  • Some users find the Resotron noisy due to its compression circuit, which is particularly noticeable with single coil pickups.

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  • Owners describe the Resotron as the most "ridiculous" pedal on their boards, highlighting its capability to produce extreme, out-there effects.

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  • Owners report initial confusion with setup, suggesting careful examination of connections between guitar, pedal, and amp is crucial for optimal performance.

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Comparisons

  • Users compare the Resotron's envelope functionality unfavorably to the Kangra, which offers a simpler, standalone filter with less noise.

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Use cases and applications

  • The Resotron's preamp and compressor are considered powerful, with potential for use as an onboard preamp in a bass guitar.

    Source
  • Combining the Resotron with distortion and delay can create unconventional soundscapes, making it a standout choice for psychedelic and experimental music styles.

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Setup and maintenance

  • The pedal requires an 18v power supply and has a compact internal design, making modifications challenging.

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  • It's important to ensure the Resotron is powered with an 18v adapter with at least 500mA output to avoid buzzing issues.

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  • Troubleshooting buzzing issues might involve checking and potentially replacing older cables, even if one is newly purchased.

    Source

Critic Reviews

Pigtronix Resotron Tracking Filter review | MusicRadar

musicradar.com

The Pigtronix Resotron Filter Effects Pedal delivers a rich variety of envelope filter sounds along with innovative pitch-tracking capabilities that harken back to vintage synths. Its compact design and intuitive controls make it a versatile addition to any pedalboard, allowing for everything from funky riffs to dreamy synth tones. However, the 18-volt power requirement could complicate setups for some users, potentially occupying two outputs on power distributors. If you're ready to explore beyond conventional guitar effects, the Resotron is a playful and powerful option worth considering.

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Artist usage

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See how emma essex uses Pigtronix Resotron Filter Effects Pedal

emma essex

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