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