Keeley Filaments Overdrive

A Keeley Distortion Tailored for High Gain in the Range

With the Filaments, Keeley offers a high gain distortion designed to replicate the feel of a saturated tube amp channel, while providing an adjustment range rarely seen in a pedal format. The idea is not just to add "more gain," but to allow the guitarist to shape the attack, compression, and frequency balance to achieve a credible and impactful sound-even on an amp that's hard to push. In the Keeley catalog, the Filaments stands out for its very "amp channel" approach and its Metal-oriented versatility, with controls designed to maintain definition and impact in the low end.

For Which Guitarists and Styles?

The Keeley Filaments is aimed at guitarists who want a Metal distortion capable of covering multiple subgenres without multiplying pedals: from heavy and modern hard rock to more extreme territories, with tight rhythms and leads that cut through the mix. Its range of controls suits both intermediate players looking for a "plug and play" yet versatile distortion, and advanced guitarists who want to precisely tailor their tone to a guitar, low tuning, active pickups, or a very characterful amp.

In a live context, the Filaments is ideal if you play with a variable backline: its Presence and Bright controls help quickly regain definition on stage. In studio, it allows precise shaping of lows and highs to fit the guitar into a dense arrangement. On a pedalboard, it can be used as the main distortion on a clean channel or as a "second channel" to boost an already crunchy amp.

Controls and Features: A Distortion That Adjusts Like an Amp

The Filaments offers a control architecture designed for playing feel and adaptation to your gear. The Level and Gain knobs adjust output volume and saturation amount respectively, ranging from a tight, articulate overdrive to a more massive distortion. The bass section, with Bass and Body, lets you dial in punch and the "big cabinet" feel, useful when playing through a compact combo or a speaker lacking low-end depth.

To multiply textures, the mini-switches Boost and Crunch add extra gain and compression levels, handy for switching from tight riffs to thicker sustain or a more compressed attack. Finally, Bright and Presence work together to restore bite, improve palm-mute clarity, and make solos stand out depending on your guitar and pickups, while Treble fine-tunes the high end to avoid harshness or, conversely, bring brightness back to a dark amp.

The Sound

The Keeley Filaments delivers an aggressive, precise, and dynamic distortion with a response reminiscent of a high gain amp channel: lots of energy, a crisp attack, and a "layered" saturation feel that remains clear when playing fast or in lower tunings. The lows can stay tight for modern rhythms or become thicker via Bass and Body for more stoner and massive styles. Presence and Bright settings help maintain harmonic definition and emphasize upper mids without becoming shrill.

This pedal is also designed to adapt to very different guitars: from powerful humbucker setups to more moderate pickups, you can quickly compensate for the instrument's character and regain a coherent tone. Regarding inspiration and use, guitarists like Tyler Larson and Eirik Stordrange have notably used it to demonstrate modern high gain tones and settings focused on riffs and leads.

Technical specifications

Effects	Distortion	Type	sector
Technology	Analog	Use	electric guitar
Format	Pedal	Color	Black
EQ	3 channels

Knobs	Level, Presence, Gain, Bass, Body, Treble	Documentation	included
Switches	Boost, Bright, Crunch	Required power	9V DC
Power supply	not included	Consumption	10 mA