Mu-Tron Mu-Tron III Envelope Filter

Brand: Mu-Tron · Category: Filter · Released: 1972

The original opto envelope filter: touch-sensitive funk, vowel-like sweep, and synthy quack controlled by your picking hand.

The Mu-Tron III is the envelope filter that made auto-wah feel less like a novelty and more like a second instrument. Instead of sweeping on a fixed clock, it listens to how hard you play, opening and closing the filter with your attack. That makes it brilliant for funk, bass lines, single-note hooks and rhythmic parts — and brutally honest when your dynamics are messy.