1970s MXR Envelope Filter rebuilt with emphasis knob, up/down switch, and true bypass.

Crying wah and talking filter with optional fuzz, expression pedal controlled.

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

Twin dynamic filter for bass with distortion switch, iconic envelope sound.

Envelope follower filter with sensitivity and Q controls. Funky auto-wah sweeps that track your pick dynamics.

Analog ladder filter inspired by classic Moog synthesizer circuits, delivering throaty, resonant filter sweeps for guitar and bass.

Mu-Tron III-style envelope filter with unique decay control and expanded tonal range.

Expanded TARS with additional features and controls for comprehensive fuzz/filter sculpting.

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

Multi-filter pedal with multiple filter types. From auto-wah to synth sweeps.

Filter/phaser named after Hawkwind's classic. Delivers sweeping, psychedelic textures.

Envelope wah with Humanizer vowel mode - funky filter sweeps triggered by your pick.

Envelope-following auto-filter from the 9-series. Dynamic wah sweeps that track your pick attack intensity.

Envelope filter from the Maestro relaunch. Touch-responsive auto-wah with sensitivity and range controls.

Envelope filter with sensitivity and cutoff controls. Touch-controlled wah sweep following your pick.

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

Expanded Q-Tron envelope filter with effects loop, blend, and HP/LP/BP mode selection.

Envelope-controlled auto-wah responding to pick attack dynamics.

State variable filter with envelope and expression modes, effects loop, and extensive tone shaping.

Wahcko wah with added Seagull effect. The Gilmour Echoes sound built into the wah housing.

Triple-band envelope filter for funky auto-wah bass effects. Three simultaneous filter sweeps.

Stompbox replica of Gibson Varitone circuit—6 filter frequencies plus depth control for 60s tones.

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

French boutique filter/phaser for explorers. Glou-Glou builds big, complex pedals that feel like synths without keys.