The Red Witch TANGENTIA is an all analog envelope filter pedal, described by its maker as "the Envelope Filter to end all Envelope Filters"1. It was released as the last limited edition Nouveau series pedal of 2024, a run of 79 units, each hand built, numbered and signed by designer Ben Fulton using through hole components1. It is listed as Sold Out on the Red Witch product page1.
What it does to your sound
An envelope filter tracks your playing dynamics and sweeps a filter in response, and Red Witch describes the Tangentia's range as running "from the bell bottomed, psychedelic funk glory of auto wah sounds… to ultra-short attack and decay settings resulting in" clipped staccato synth sounds and "gradual volcanic bubbling release back up to your original frequency"1. In plain terms: pick hard and the filter snaps shut or opens fast; play softly and it drifts. Players after related filter effects can compare it with the Red Witch Euphemia, the Red Witch Ionium and the Red Witch Euphemia Sample Hold Filter.
The controls
| Control | What it does |
|---|---|
| Resonance | Sets the peak frequency resonance1 |
| Sensitivity | Sets how quickly the filter "bites"1 |
| Decay | Sets how long it takes for the frequency shift to decay, at the other end of the envelope1 |
| Toggle switch | Top mounted, low profile; selects which direction the filter moves in, up for low to high frequency sweeps and down for high to low sweeps1 |
| Internal trim-pot | Adjusts the master volume1 |
The master volume is set with an internal trim-pot rather than an external knob, so changing overall output level means opening the pedal up1.
Build and bypass
The footswitch is described by Red Witch as "super high quality true bypass" and is independent from the main PCB, so the filter circuit drops out of the chain entirely when the pedal is off1. The through hole construction and hand-numbered, signed build reflect the pedal's small-batch Nouveau series origins1.
Videos
Red Witch Pedals
Questions
Is the Red Witch Tangentia true bypass?
Yes. Red Witch describes the Tangentia's footswitch as a super high quality true bypass switch that is independent from the main PCB, so the filter circuit is taken fully out of the signal path when the pedal is off.
Is the Tangentia analog or digital?
The Tangentia is all analog. Red Witch's Ben Fulton says its all analog circuitry offers a range of ultra-useable and incredibly tweak-able sounds, and the pedal is built with through hole components.
How many Red Witch Tangentia pedals were made?
The Tangentia was a limited edition Nouveau series pedal of 2024 with a run of 79 units. Each one was hand built, numbered and signed by Ben Fulton.
Who designed the Red Witch Tangentia?
The Tangentia was designed and built by Ben Fulton of Red Witch Pedals, who describes it as his gloriously fun filled envelope filter. Each unit was hand built, numbered and signed by him.
Is the Red Witch Tangentia still available?
No. The pedal is listed as Sold Out on the Red Witch Pedals product page. It was a limited run of 79 units from the 2024 Nouveau series, so once those were gone there were no more.
Sources (1)
- TANGENTIA, Red Witch Pedals
