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

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

Analog envelope filter with four controls: Sensitivity, Tone, Decay, and Q resonance. Works on guitar and bass.

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

Compact dual-effect pedal combining phaser (4/6-stage) and envelope filter in the Smalls format.

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

16 filter and synth models including envelope followers, talk boxes, and ring modulators.

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

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

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

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

All-analog envelope filter with tap tempo LFO mode, 8 rhythmic patterns, and expression input.

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

BJF envelope filter based on 1991 rack design. Lightning-fast tracking, tuned like a real wah pedal.

Moog Moogerfooger MF-101 recreation with 2/4-pole filter, envelope follower, and expression input.

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

Spanish-style envelope filter that speaks and talks.

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

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

Dual low-pass envelope bi-filter with Color blend control. Forward and reverse sweep directions.

Envelope filter with harmonic density engine, LFO, 4 filter modes, CV patch bay, expression—400mA/9V, 124x99x61mm.

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

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

Envelope filter with dynamic frequency response to playing dynamics.