The Keeley Super Phat Mod is a Keeley overdrive pedal, currently around $136. Close alternatives include the EarthQuaker Devices Palisades and the Crowther Double Hot Cake. It pairs well with the Fender Prosonic and the Blackstar St. James 100.
Keeley Super Phat Mod
Keeley · pedal
The Keeley Super Phat Mod is a symmetrical-clipping overdrive built around Robert Keeley's signature "Phat" modification, enhancing low-end response and body compared to a standard Tube Screamer-style circuit. Unlike the asymmetrical-clipping Super AT Mod, the Super Phat Mod uses symmetrical clipping similar in family to the BD-2 Blues Driver, giving it a different compression and harmonic character focused on a fuller, phatter overdrive tone.
What stands out
“, the Super Phat Mod uses symmetrical clipping similar in family to the BD-2 Blues Driver, giving it a different compression and harmonic character focused on a fuller, phatter overdrive tone”
— from the listing
“Primary use case is players wanting a fuller-bodied, symmetrical-clipping overdrive with more low-end presence than typical mid-forward drive pedals”
— from the community notes
“The Keeley Super Phat Mod is a symmetrical-clipping overdrive built around Robert Keeley's signature "Phat" modification, enhancing low-end response and body compared to a standard Tube Screamer-style circuit”
— from the listing
“Symmetrical clipping circuit gives a genuinely different compression and harmonic character than the asymmetrical-clipping Super AT Mod,”
— from the reviews
“Fits within the same tonal family as pedals like the BD-2 Blues Driver, appealing to players who like that clipping character with added low-end fullness”
— from the reviews
Trade-offs
“sits alongside the asymmetrical-clipping super at mod in keeley”
— from the community notes
“phatter overdrive tone than typical mid-focused tube screamer derivatives offer”
— from the reviews
- symmetrical
- clipping
- low end
- harmonic
- compression
- overdrive
- response
- presence
Price updated Oct 24, 2026
Genres the Keeley Super Phat Mod is commonly used in
- Electronic
- Blues
Amps that pair well with the Keeley Super Phat Mod
Fender Prosonic
amplifier
29% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)
Into the Prosonic's warm, responsive overdrive, the Super Phat Mod's harmonic, blues-voiced clipping has a genuinely characterful signal to color.
Comes later in the signal chain
Blackstar St. James 100
Blackstar
28% matchgain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → high gain)
Run mid-forward into Blackstar St. James 100 for more high gain on top
Comes later in the signal chain
PRS DGT 15 David Grissom Signature 15W Head
PRS
27% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Run Keeley Super Phat Mod into that dynamic platform and it finally leans toward compressed
Comes later in the signal chain
Carvin Legacy 1 VL100 100W Amp Head
Carvin
27% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Keeley Super Phat Mod brings a pull toward compressed that's missing
Comes later in the signal chain
PRS DG Custom 15 Combo
PRS
23% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Run Keeley Super Phat Mod into that dynamic platform and it finally leans toward compressed
Comes later in the signal chain
Victory Amps V10 The Baron
Victory
22% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Run Keeley Super Phat Mod into that dynamic platform and it finally leans toward compressed
Comes later in the signal chain
Mesa Boogie Split Back 2x12
Mesa Boogie
19% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Run Keeley Super Phat Mod into that dynamic platform and it finally leans toward compressed
Comes later in the signal chain
Blackstar Series One 200
Blackstar
tonal matchComes later in the signal chain
Blackstar Series One 200's warm balances out the bright tone
Pedals that stack with the Keeley Super Phat Mod
MXR Phase 90
MXR
28% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Phase 90's classic swirl colors Super Phat Mod's asymmetrical drive after the gain stage rather than adding to it.
Comes later in the signal chain
Great Eastern FX Co. Small Speaker Overdrive
Great Eastern FX
27% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Keeley Super Phat Mod brings a pull toward compressed that's missing
Xotic Bass BB Preamp V1.5
Xotic
26% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Keeley Super Phat Mod brings a pull toward compressed that's missing
Comes later in the signal chain
JHS Pedals JHS Coyote
JHS Pedals
25% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
Keeley Super Phat Mod leans toward full, and that's a real, usable character to pair with
Comes later in the signal chain
Spaceman Voyager II: Dynamic Tremolo
Spaceman
25% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Keeley Super Phat Mod brings a pull toward compressed that's missing
Comes later in the signal chain
Electro-Harmonix Eddy Vibrato/Chorus
Electro-Harmonix
23% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Keeley Super Phat Mod leans this dynamic tone toward compressed, which it doesn't make on its own
Comes later in the signal chain
T-Rex Duck Tail
T Rex
23% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
What Keeley Super Phat Mod brings here leans toward full — that's worth building a pairing around — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Meris MR Hedra
Meris
23% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (thin → full)
What Keeley Super Phat Mod brings here leans toward full — that's worth building a pairing around
Comes earlier in the signal chain
See all 33 pedals that pair with the Keeley Super Phat Mod →
Cheaper alternatives
Mythos Air Lane Drive
Mythos
66% similarityShared character: compression, overdrive
Fulltone Full Drive 2 10th Anniversary Mosfet Edition
pedal
55% similarityShared character: presence, overdrive
Electro-Harmonix ERD
Electro-Harmonix
53% similarityShared character: presence, middle, overdrive
Boss SD-1 Super OverDrive
Boss
50% similarityShared character: blues players, middle, response
DigiTech DOD Overdrive Preamp 250
Digitech
91% similaritysimilar tone character
Wampler Phenom Distortion
Wampler
90% similaritysimilar tone character
Boutique & premium upgrades
Keeley Super AT Mod Overdrive Limited Edition
Keeley
78% similarity“Unlike the asymmetrical-clipping Super AT Mod, the Super Phat Mod uses symmetrical clipping similar in family to the BD-2 Blues Driver”
Ibanez TS808 Tube Screamer
Ibanez
70% similarityShared character: presence, middle, response
Browne Amplification Gritador
Browne Amplification
59% similarityShared character: middle, response, overdrive
Tru-Fi Scream to Eternity
Tru Fi
58% similarityShared character: compression, middle, overdrive
Browne Amplification Alkene Nashville Overdrive
Browne Amplification
58% similarityShared character: compression, middle, response
JAM Pedals Rattler Limited
Jam Pedals
54% similarityShared character: overdrive
Similar charactersee all similar tone character →
EarthQuaker Devices Palisades
EarthQuaker Devices
53% similarityShared character: compression, response
Crowther Double Hot Cake
Crowther
51% similarityShared character: presence, overdrive
Dunlop Echoplex Preamp
Dunlop
50% similaritySimilar voicing: full, compressed
Dunlop MXR Distortion Plus
Dunlop
50% similarityShared character: compression, middle
Wampler Belle
Wampler
49% similarityShared character: compression, overdrive
Browne Amplification Ethane
Browne Amplification
91% similaritysimilar tone character
See all alternatives to the Keeley Super Phat Mod (cheaper + boutique) →
Questions people ask
What are good alternatives to the Keeley Super Phat Mod?+
The closest matches in character are the EarthQuaker Devices Palisades, the Crowther Double Hot Cake, the Dunlop Echoplex Preamp. Budget picks: Mythos Air Lane Drive, Fulltone Full Drive 2 10th Anniversary Mosfet Edition, Electro-Harmonix ERD. Boutique upgrades: Keeley Super AT Mod Overdrive Limited Edition, Ibanez TS808 Tube Screamer, Browne Amplification Gritador.
What pairs well with the Keeley Super Phat Mod?+
Strong matches from rig and tone-complementarity evidence: Fender Prosonic, Blackstar St. James 100, PRS DGT 15 David Grissom Signature 15W Head — Into the Prosonic's warm, responsive overdrive, the Super Phat Mod's harmonic, blues-voiced clipping has a genuinely characterful signal to color..
How much does the Keeley Super Phat Mod cost?+
Around $136 (live listing price, updated Oct 24, 2026).