The Foxgear Knee Trembler Guy Prat Signature Tremolo is a Foxgear tremolo pedal, currently around $109. Close alternatives include the Foxgear Pedals Knee Trembler Guy Pratt Signature and the MXR EVH90 Phase 90. It pairs well with the Mesa Boogie Mark IIC+ Combo and the Friedman BE-Mini Head.
Foxgear Knee Trembler Guy Prat Signature Tremolo
Foxgear · pedal
The Foxgear Knee Trembler is an optical tremolo pedal from Italian manufacturer Foxgear, featuring the signature of Guy Pratt (bassist for Pink Floyd), delivering smooth, musical optical tremolo with Rate, Depth, and a Waveform selector for sine and square wave tremolo. The signature association with Guy Pratt connects the pedal to the vintage, musical tremolo used in classic rock and prog rock contexts.
- prog rock
- mid
- classic rock
- musical
- vintage
- overdrive
- ambient
- boutique
Price updated Aug 27, 2026
Genres the Foxgear Knee Trembler Guy Prat Signature Tremolo is commonly used in
- Classic Rock
- Ambient
Amps that pair well with the Foxgear Knee Trembler Guy Prat Signature Tremolo
Mesa Boogie Mark IIC+ Combo
Mesa Boogie
19% matchMesa Boogie Mark IIC+ Combo layers high gain onto an already mid-forward signal
Friedman BE-Mini Head
Friedman
tonal matchRun mid-forward into Friedman BE-Mini Head for more high gain on top
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchPut Hughes & Kettner Warp 7 in front and the mid-forward tone leans further toward high gain
Synergy SL2 Module
Synergy
tonal matchPut Synergy SL2 Module in front and the mid-forward tone leans further toward high gain
Hiwatt Hi-Gain 100W Head
Hiwatt
tonal matchPut Hiwatt Hi-Gain 100W Head in front and the mid-forward tone leans further toward high gain
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchHughes & Kettner Coreblade layers high gain onto an already mid-forward signal
Friedman Phil X Signature
Friedman
tonal matchFriedman Phil X Signature layers high gain onto an already mid-forward signal
EVH 000
Evh
tonal matchEVH 000 stacks high gain on top of the mid-forward already here
Pedals that stack with the Foxgear Knee Trembler Guy Prat Signature Tremolo
EarthQuaker Devices Dirt Transmitter
EarthQuaker Devices
23% matchRun mid-forward into EarthQuaker Devices Dirt Transmitter for more fuzzy on top
Greer Black Mountain
Greer
21% matchRun mid-forward into Greer Black Mountain for more fuzzy on top
Alexander Pedals SpaceXpander
Alexander Pedals
8% matchAlexander Pedals SpaceXpander's spring voice goes after Foxgear Knee Trembler Guy Prat Signature Tremolo in the signal chain — it's not there to compete with Foxgear Knee Trembler Guy Prat Signature Tremolo's own mid-forward character — goes in the amp's FX loop (or last, into a clean amp)
EarthQuaker Devices Afterneath
EarthQuaker Devices
8% matchEarthQuaker Devices Afterneath's ambient voice goes after Foxgear Knee Trembler Guy Prat Signature Tremolo in the signal chain — it's not there to compete with Foxgear Knee Trembler Guy Prat Signature Tremolo's own mid-forward character — goes in the amp's FX loop (or last, into a clean amp)
Cusack Music Carolina Reaper Overdrive Fuzz
Cusack Music
tonal matchPut Cusack Music Carolina Reaper Overdrive Fuzz in front and the mid-forward tone leans further toward high gain
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchRun mid-forward into Dr. Scientist Frazz Dazzler V2 for more fuzzy on top
Crowther Prunes
Crowther
tonal matchCrowther Prunes stacks fuzzy on top of the mid-forward already here
Blackstar ID:X Floor One
Blackstar
tonal matchBlackstar ID:X Floor One stacks high gain on top of the mid-forward already here
Cheaper alternatives
Electro-Harmonix Neo Mistress Nano Flanger
Electro-Harmonix
67% similarityShared character: pink_floyd, classic_rock, overdrive
Maestro Orbit
Maestro
63% similarityShared character: middle, classic_rock, vintage_charm
Electro-Harmonix Nano Small Stone v2
Electro-Harmonix
89% similaritysimilar tone character
Boutique & premium upgrades
Fuzzrocious Cosmic Bull Shark
Fuzzrocious
61% similarityShared character: boutique_stuff
Dophix Galileo Optical Tremolo
Dophix
61% similarityShared character: vintage_charm, overdrive, boutique_stuff
Providence Phase Force PHF-1
Providence
87% similaritysimilar tone character
DLS Effects TR1-Tap Tremolo
Dls Effects
86% similaritysimilar tone character
Similar charactersee all similar tone character →
Foxgear Pedals Knee Trembler Guy Pratt Signature
Foxgear
68% similarityShared character: ambient, middle, classic_rock
MXR EVH90 Phase 90
MXR
64% similarityShared character: pedal, classic_rock
Boss TR-2 Tremolo
Boss
62% similarityShared character: pedal, vintage_charm
Bookworm Effects Laughing Man Optical Tremolo V3
Bookworm Effects
60% similarityShared character: vintage_charm, boutique_stuff
See all alternatives to the Foxgear Knee Trembler Guy Prat Signature Tremolo (cheaper + boutique) →
Questions people ask
What are good alternatives to the Foxgear Knee Trembler Guy Prat Signature Tremolo?+
The closest matches in character are the Foxgear Pedals Knee Trembler Guy Pratt Signature, the MXR EVH90 Phase 90, the Boss TR-2 Tremolo. Budget picks: Electro-Harmonix Neo Mistress Nano Flanger, Maestro Orbit, Electro-Harmonix Nano Small Stone v2. Boutique upgrades: Fuzzrocious Cosmic Bull Shark, Dophix Galileo Optical Tremolo, Providence Phase Force PHF-1.
What pairs well with the Foxgear Knee Trembler Guy Prat Signature Tremolo?+
Strong matches from rig and tone-complementarity evidence: Mesa Boogie Mark IIC+ Combo, Friedman BE-Mini Head, Hughes & Kettner Warp 7 — Mesa Boogie Mark IIC+ Combo layers high gain onto an already mid-forward signal.
How much does the Foxgear Knee Trembler Guy Prat Signature Tremolo cost?+
Around $109 (live listing price, updated Aug 27, 2026).
Compare
- vs Electro-Harmonix Nano Small Stone v2
- vs Providence Phase Force PHF-1
- vs DLS Effects TR1-Tap Tremolo