Spanish-style envelope filter that speaks and talks.

Updated Danish envelope filter legend, refining the world-class auto-wah formula.

Budget envelope filter/auto-wah in micro format. Funky quack that responds to pick dynamics.

Legendary downward-sweeping envelope filter from 1973 by Craig Anderton with voice-like synth response for funk and bass.

Envelope-controlled EQ responding to playing dynamics. Touch-sensitive tone shaping.

Optical envelope filter with HP/BP/LP modes, Q control, and touch-sensitive dynamics.

Danish envelope filter considered the world's best auto-wah, Pino Palladino approved.

Expanded envelope filter/wah/octave with three filter flavors, three octave voicings, and flexible routing.

MK2 dual envelope filter with refined tracking and expanded sweep range. Two filters, infinite funk.

Envelope filter with resonant lowpass and multiple modes.

Dual envelope filter with two independent filter sections. Stack up and down sweeps for complex bass funk.

Bass-optimized envelope filter with Dry blend and FX loop for drive stacking.

DIY PCB for building a Lovetone Meatball clone - the heavily tweaked Mu-Tron III envelope filter with blend and loop.

Dual-envelope filter with extensive parameter control and independent high/low filters.

Funky, squawky envelope filter for wah-like quack.

Envelope filter with 4-pole lowpass. Attack and decay shaping plus expression control.

Envelope filter with up and down sweep modes, funky quack and touch-sensitive response.

Hand-wired Snow White AutoWah. BJF envelope filter with lightning tracking, Finnish point-to-point build.

Envelope filter with Stroke (sensitivity), Fwonk (bass), and Juice (peak height) controls.

Dual-channel envelope filter/wah and octave for funk and soul with two filter modes and expression input.

Frostwave Funk-a-Duck clone. Resonant envelope filter with deep funk and synth-like sweeps.

Custom Line auto-wah/envelope filter. Funky dynamic filter in mid-tier line.

Fuzz into envelope filter with sidechain—Curt Bisquera's signature for funky quack and grit.

TB-303-inspired acid envelope filter. Low-pass with resonance, saturation, and quacky attack sounds.