The Keeley KO-Als Distortion is a Keeley distortion pedal, currently around $170. Close alternatives include the Wampler Pedals Tweed '57 and the Airis Effects -Nemesis Preamp. It pairs well with the Marshall Silver Jubilee 25/55 100W Amp Head and the Laney LA30BL 30W Tube Amplifier.
Keeley KO-Als Distortion
Keeley · pedal
The Keeley KO-ALS is a limited-edition distortion pedal, hand-built in a run of just 100 units, based on the Keeley Stahlhammer circuit, with proceeds from its sale benefiting Project ALS in support of ALS (Lou Gehrig's Disease) research. It offers Distortion, Level, Bass, Mids, and Treble controls for finely shaping heavy distortion tones, plus a side-mounted switch selecting between Fender- and Marshall-style EQ contours, letting players tailor the pedal's underlying amp-voicing character.
- distortion
- eq
- treble
- mids
- high gain
- bass
- fundamental
- release
Price updated Aug 27, 2026
Genres the Keeley KO-Als Distortion is commonly used in
- Electronic
- Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Hard Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Punk
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Keeley KO-Als Distortion
Marshall Silver Jubilee 25/55 100W Amp Head
amplifier
26% matchMarshall Silver Jubilee 25/55 100W Amp Head pushes a high gain tone toward tight
Laney LA30BL 30W Tube Amplifier
Laney
25% matchLaney LA30BL 30W Tube Amplifier takes that high gain character and pushes it toward mid-forward
Gallien-Krueger Fusion 210
Gallien Krueger
tonal matchFeed a high gain signal into Gallien-Krueger Fusion 210 and it comes out closer to mid-forward
Ampeg V-4
Ampeg
tonal matchFeed a high gain signal into Ampeg V-4 and it comes out closer to mid-forward
Orange Little Bass Thing
Orange
tonal matchWhere this leans bright, Orange Little Bass Thing answers back warm
Harmony H650
Harmony
tonal matchStack Harmony H650 on top and a high gain tone tightens toward mid-forward
Mesa Boogie Mark Five:25 Head
Mesa Boogie
tonal matchWhere this leans bright, Mesa Boogie Mark Five:25 Head answers back smooth
Fuchs ODS II Custom 25/50 Combo
Fuchs
tonal matchWhere this leans bright, Fuchs ODS II Custom 25/50 Combo answers back warm
Pedals that stack with the Keeley KO-Als Distortion
Soldano SLO
Soldano
15% matchSoldano SLO layers high gain onto an already mid-forward signal
Boss CE-2W Chorus Waza Craft
Boss
15% matchKeep Keeley KO-Als Distortion's bright voice out front: Boss CE-2W Chorus Waza Craft goes after Keeley KO-Als Distortion in the signal chain so its analog warmth voice doesn't muddy it
Greer Royal Velvet
Greer
15% matchRun mid-forward into Greer Royal Velvet for more fuzzy on top
Walrus Audio Highpoint
Walrus Audio
12% matchWalrus Audio Highpoint leans toward analog warmth, and that's a real, usable character to pair with
Walrus Audio Bellwether Stereo Analog Delay
Walrus Audio
11% matchKeep Keeley KO-Als Distortion's bright voice out front: Walrus Audio Bellwether Stereo Analog Delay goes after Keeley KO-Als Distortion in the signal chain so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Fender Hammertone Delay
Fender
11% matchPut Fender Hammertone Delay after Keeley KO-Als Distortion in the signal chain, clear of Keeley KO-Als Distortion's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Friedman Buxom Boost
Friedman
tonal matchKeeley KO-Als Distortion leans into a high-gain amp's front end, precisely the platform Friedman Buxom Boost wants
Spaceman Effects Atlas IV
Spaceman
tonal matchFeed a high gain signal into Spaceman Effects Atlas IV and it comes out closer to clean boost
Cheaper alternatives
Dunlop MXR Timmy Overdrive, sold as Dunlop CSP027
Dunlop
69% similarityShared character: treble, high_gain_settings, bass
MXR Super Badass Distortion
MXR
69% similarityShared character: treble, high_gain_settings, distortion
Fuzzrocious Baxstabber EQ/preamp/tone shaper
Fuzzrocious
94% similaritysimilar tone character
Caline CP-15
Caline
94% similaritysimilar tone character
DigiTech Metal Master
Digitech
94% similaritysimilar tone character
Demon FX Gladiator
Demon Fx
94% similaritysimilar tone character
Boutique & premium upgrades
Similar charactersee all similar tone character →
Wampler Pedals Tweed '57
Wampler
76% similarityShared character: gain_control, treble, pedal
Airis Effects -Nemesis Preamp
Airis Effects
71% similarityShared character: treble, pedal, high_gain_settings
Mad Professor Mad-Rbo
Mad Professor
68% similarityShared character: treble, pedal, distortion
Benson Amps Portable Distortion 424 MKII
Benson Amps
68% similarityShared character: treble, high_gain_settings, distortion
DOD YJM308 Preamp Overdrive
Dod
67% similarityShared character: pedal, high_gain_settings, bass
EarthQuaker Devices Tone Job
EarthQuaker Devices
94% similaritysimilar tone character
See all alternatives to the Keeley KO-Als Distortion (cheaper + boutique) →
Questions people ask
What are good alternatives to the Keeley KO-Als Distortion?+
The closest matches in character are the Wampler Pedals Tweed '57, the Airis Effects -Nemesis Preamp, the Mad Professor Mad-Rbo. Budget picks: Dunlop MXR Timmy Overdrive, sold as Dunlop CSP027, MXR Super Badass Distortion, Fuzzrocious Baxstabber EQ/preamp/tone shaper. Boutique upgrades: Origin Effects M-EQ Driver, JHS Colour Box V2.
What pairs well with the Keeley KO-Als Distortion?+
Strong matches from rig and tone-complementarity evidence: Marshall Silver Jubilee 25/55 100W Amp Head, Laney LA30BL 30W Tube Amplifier, Gallien-Krueger Fusion 210 — Marshall Silver Jubilee 25/55 100W Amp Head pushes a high gain tone toward tight.
How much does the Keeley KO-Als Distortion cost?+
Around $170 (live listing price, updated Aug 27, 2026).