# Furman PQ-4 Parametric Equalizer

> This filter & eq entry consolidates documented Furman PQ-4 Parametric Equalizer variants, controls, settings and roles across dated guitarist pedalboards.

- Canonical page: https://pedalboardarchive.com/pedals/furman-pq-4-parametric-equalizer/
- Machine-readable index of the archive: https://pedalboardarchive.com/llms.txt
- Evidence and reconstruction conventions: https://pedalboardarchive.com/methodology/

- **Category:** Filter & EQ
- **Types:** Boost, Parametric equalizer, Preamp
- **Also known as:** Parametric EQ, PQ-4
- **Controls:** Frequency and bandwidth, High, High-mid, Low, Low-mid, Preamp level
- **Identification:** The model is identified.
- **Documented appearances:** 1 board, 1992

A black single-rackspace preamp/EQ with four frequency sections, concentric controls and a red power indicator.

## 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 |
| --- | --- | --- | --- | --- | --- |
| Dimebag Darrell | Vulgar Display of Power core path | 1992-01-01 | 1 | Source-described | https://pedalboardarchive.com/artists/dimebag-darrell/vulgar-display-core-path-1992/ |