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3Leaf Audio Proton

$ 199.00

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A modern homage to the classic Mutron III envelope filter

The 3Leaf Audio Proton is an envelope filter capable of generating numerous funky tones in the style of the Mu-Tron III. It features controls for Gain, Peak, Decay, Sweep, and Tone. 

Tone knob for fine control over the filter sweep.


Increased sensitivity range for better compatibility with low-output instruments.


Phase-correct output for predictable use in blend pedal signal chains.



Footprint: 64 x 118 mm