Musitronics Mu-Tron III vs Pigtronix Resotron Analog Tracking Filter
The Musitronics Mu-Tron III and the Pigtronix Resotron Analog Tracking Filter are both pedals sharing low gain. The Musitronics Mu-Tron III leans mid-forward and dynamic. The Pigtronix Resotron Analog Tracking Filter leans compressed and fuzzy.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.37% — somewhat different
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Genres both listings are associated with.- Funk
- Experimental
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Derived from overlapping tonal signals across both listings.- low gain
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$349via Reverb
The Mu-Tron III is the classic 1970s envelope filter, an auto-wah that responds to pick dynamics with a vocal, quacky sweep. Used by Andy Summers and many funk and fusion players, it delivers expressive, dynamic filter sweeps from subtle to dramatic. It suits funk rhythm, fusion and experimental playing where touch-responsive, vowel-like filtering is wanted.
The Pigtronix Resotron is an all-analog tracking multimode filter that brings vintage 1970s synthesizer character to envelope-filter territory for guitar, bass, and keyboard. Its 24dB-per-octave filter is based on the SSM2040 chip found in some classic synths, offering traditional up and down envelope-filter modes plus a unique pitch-following mode where the filter adjusts to the actual notes played rather than just pick attack, like an old-school analog synth. It covers subtle auto-wah variations for funk riffing, reggae rhythms, and Jerry Garcia-style leads, and can also coax phaser- and flanger-like tones. Onboard compression keeps things punchy without affecting sensitivity, and an expression jack allows foot control of the cutoff for conventional wah use. It also turns overdrive and distortion into creamy, near-fuzz tones.
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Genres this gear is documented as being used in.- Reggae
- mid-forward
- dynamic
- compressed
- fuzzy
- octave