Premier Guitar features affiliate links to help support our content. We may earn a commission on any affiliated purchases.

Keeley Electronics Releases the Filaments Distortion

A new, expansive approach to high gain tone.

Edmond, OK (March 31, 2017) -- Keeley Electronics is proud to announce the Filaments​, a high-gain distortion that covers all gain territories, from classic-rock crunch to ultra-modern, crushingly defined distortion.

With the Filament’s abundance of knobs and switches, the tone-shaping possibilities are sure to appease player’s tastes across the board. With 7 tone shaping options, you are sure to find the sound you are looking for. The Filaments offers classic controls such as Level, Gain, Bass and Treble, as well as a Presence knob, which simulates proximity to your speaker. Also included is a Body knob, which boosts the ‘meat’ of the distortion, adding ‘oomph’ to the signal that pushes the sound into the aforementioned modern gain territory. Roll the Presence and Body knobs back, and you are taken back in time to a clean, pure vintage distortion sound.

The Filaments also boasts 3 external switches, further adding to tonal possibilities. The Boost switch slams the front end of the circuit with even more gain and output volume. The Bright switch offers a high frequency boost or cut, perfect for dialing in searing leads or pounding rhythm tones. The Crunch switch activates an additional diode in the signal path; flip the Crunch switch up for a more open, uncompressed tone, down for a compressed, battering ram distortion. The Filaments is a True Bypass pedal, designed to work with any amplifier.

Simply put, the Filaments is a distortion for fans of dimed hi-gain tube amps. We’ve been told that the Filaments is “A distortion pedal for people who have never found the ‘right’ distortion pedal.”

The Keeley Electronics Filaments is available at Keeley Electronics and dealers worldwide. Street Price is $189. Visit for more information about the full lineup of award-winning Keeley Electronics effects.

Watch the company's video demo:

For more information:
Keeley Electronics

Full Slash Interview
Full Slash Interview on New Blues Album, S.E.R.P.E.N.T. Festival, Guitar Gear, Pedal Steel & More

The guitar icon shares what went into making his chart-topping blues album and what gear fans can expect to see at the S.E.R.P.E.N.T. Blues Festival tour.

This 1968 Epiphone Al Caiola Standard came stocked with P-90s and a 5-switch Tone Expressor system.

Photo courtesy of Guitar Point (

Photo courtesy of Guitar Point (

The session ace’s signature model offers a wide range of tones at the flip of a switch … or five.

Hello and welcome back to Mod Garage. Not long ago, I came home late from a band rehearsal, still overly excited about the new songs we played. I got myself a coffee (I know, it's a crazy procedure to calm down) and turned on the TV. I ended up with an old Bonanza episode from the ’60s, the mother of all Western TV series. Hearing the theme after a long time instantly reminded me of the great Al Caiola, who is the prolific session guitarist who plays on the song. With him in mind, I looked up the ’60s Epiphone “Al Caiola” model and decided I want to talk about the Epiphone/Gibson Tone Expressor system that was used in this guitar.

Read MoreShow less

Slinky playability, snappy sounds, and elegant, comfortable proportions distinguish an affordable 0-bodied flattop.

Satisfying, slinky playability. Nice string-to-string balance. Beautiful, comfortable proportions.

Cocobolo-patterned HPL back looks plasticky.


Martin 0-X2E


Embracing the idea of an acoustic flattop made with anything other than wood can, understandably, be tricky stuff. There’s a lot of precedent for excellent-sounding acoustics built with alternative materials, though. Carbon-fiber flattops can sound amazing and I’ve been hooked by the sound and playability of Ovation and Adamas instruments many times.

Read MoreShow less

The GibsonES Supreme Collection (L-R) in Seafoam Green, Bourbon Burst, and Blueberry Burst.

The new Gibson ES Supreme offers AAA-grade figured maple tops, Super Split Block inlays, push/pull volume controls, and Burstbucker pickups.

Read MoreShow less