# 440 Envelope Filter

> This filter & eq entry consolidates documented 440 Envelope Filter variants, controls, settings and roles across dated guitarist pedalboards.

- Canonical page: https://pedalboardarchive.com/pedals/440-envelope-filter/
- Machine-readable index of the archive: https://pedalboardarchive.com/llms.txt
- Evidence and reconstruction conventions: https://pedalboardarchive.com/methodology/

- **Category:** Filter & EQ
- **Types:** Auto-wah, Envelope filter
- **Also known as:** DOD 440, Envelope filter 440
- **Controls:** Level, Range
- **Identification:** The model is identified.
- **Documented appearances:** 1 board, 2016

A green compact envelope filter with two controls for level and sensitivity.

## Documented boards

Each row is an observed appearance on a dated board. A position is only an observed one where that board's order evidence says so.

| Artist | Board | Date | Positions | Order evidence | Page |
| --- | --- | --- | --- | --- | --- |
| Jonny Greenwood | Two-amplifier Radiohead board | 2016-06-01 | 6 | Source-described | https://pedalboardarchive.com/artists/jonny-greenwood/radiohead-lyon-board-2016/ |