The T-Rex Karma Boost is a T Rex boost pedal, currently around $122.30. Close alternatives include the One Control Granith Grey Booster V2 and the Shin's Music Mighty Boost. It pairs well with the Orange Rockerverb 50 MkIII 2-Channel 50W Head and the Laney GH100L.
T-Rex Karma Boost
T Rex · pedal
The T-Rex Karma Boost is a premium clean boost pedal from T-Rex Engineering of Copenhagen, Denmark, delivering transparent level boost with minimal coloration in T-Rex's robust Danish build quality, suited for driving amplifiers and solo level increase.
What stands out
“The T-Rex Karma Boost is a premium clean boost pedal from T-Rex Engineering of Copenhagen, Denmark, delivering transparent level boost with , suited for driving amplifiers and solo le…”
— from the listing
“T-Rex's clean boost, praised for transparent level boost with”
— from the community notes
“Build quality is excellent”
— from the community notes
“Transparent boost suits amp driving and solo level increase applications”
— from the reviews
“The Karma Boost delivers transparent clean level boost with”
— from the reviews
- boost
- transparent
- clean boost
- clean
- transparent boost suits
- solo level increase
Price updated Oct 23, 2026
Genres the T-Rex Karma Boost is commonly used in
- Country
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the T-Rex Karma Boost
Orange Rockerverb 50 MkIII 2-Channel 50W Head
Orange
18% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
Orange Rockerverb 50 MkIII 2-Channel 50W Head leans this transparent tone toward mid-forward, which it doesn't make on its own
Comes later in the signal chain
Laney GH100L
Laney
18% matchInto a transparent tone, Laney GH100L brings a pull toward low gain that's missing
Comes later in the signal chain
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Synergy SL2 Module leans this transparent tone toward high gain, which it doesn't make on its own
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Into a transparent tone, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt brings a pull toward high gain that's missing
Egnater Tweaker 88 Head
Egnater
tonal matchComes later in the signal chain
Into a transparent tone, Egnater Tweaker 88 Head brings a pull toward low gain that's missing
Ceriatone 2202H
Ceriatone
tonal matchComes later in the signal chain
Ceriatone 2202H leans this transparent tone toward high gain, which it doesn't make on its own
Carol-Ann OD-2R
Carol Ann
tonal matchComes later in the signal chain
Into a transparent tone, Carol-Ann OD-2R brings a pull toward medium gain that's missing
Marshall Studio JCM900 SN20H
Marshall
tonal matchComes later in the signal chain
Into a transparent tone, Marshall Studio JCM900 SN20H brings a pull toward high gain that's missing
Pedals that stack with the T-Rex Karma Boost
Wren and Cuff Box of War OG
Wren And Cuff
16% matchInto a transparent tone, Wren and Cuff Box of War OG brings a pull toward fuzzy that's missing
Comes later in the signal chain
Sola Sound Tone Bender MkII
Sola Sound
16% matchInto a transparent tone, Sola Sound Tone Bender MkII brings a pull toward fuzzy that's missing
Comes later in the signal chain
Earthquaker Devices Pyramids Stereo Flanging Device
EarthQuaker Devices
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Earthquaker Devices Pyramids Stereo Flanging Device after T-Rex Karma Boost in the signal chain, clear of T-Rex Karma Boost's own gain stage
Comes later in the signal chain
Xotic SP Compressor
Xotic
10% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
What Xotic SP Compressor brings here leans toward smooth — that's worth building a pairing around
Comes earlier in the signal chain
JHS 3 Series Oil Can Delay
JHS Pedals
6% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep JHS 3 Series Oil Can Delay after T-Rex Karma Boost in the signal chain, clear of T-Rex Karma Boost's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Walrus Audio Slö Multi-Texture Reverb
Walrus Audio
6% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep T-Rex Karma Boost's transparent voice out front: Walrus Audio Slö Multi-Texture Reverb goes after T-Rex Karma Boost in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchComes later in the signal chain
Dr. Scientist Frazz Dazzler V2 leans this transparent tone toward fuzzy, which it doesn't make on its own
Warm Audio Jet Phaser
Warm Audio
tonal matchComes later in the signal chain
Warm Audio Jet Phaser goes after T-Rex Karma Boost — modulation sits after the gain for a defined swirl
Cheaper alternatives
Boutique & premium upgrades
ThorpyFX Judge Dredd Lawbringer Gunshot
ThorpyFX
74% similarityShared character: boost, transparent
Suhr Dual Boost
Suhr
74% similarityShared character: boost, transparent
Walrus Audio Plainsman Clean Boost
Walrus Audio
74% similarityShared character: boost, transparent
Walrus Audio Defcon 4 Boost
Walrus Audio
74% similarityShared character: boost, transparent
Wampler Decibel Plus Buffer Boost
Wampler
73% similarityShared character: boost, transparent
Old Blood Noise Endeavors Black Bobbin Boost
Old Blood Noise Endeavors
68% similarityShared character: boost, transparent, clean
Similar charactersee all similar tone character →
One Control Granith Grey Booster V2
One Control
74% similarityShared character: boost, transparent
Shin's Music Mighty Boost
Shins Music
74% similarityShared character: boost, transparent
Vox TG1-FL4BT Flat 4 Boost
Vox
74% similarityShared character: boost, transparent
TC Electronic Rush Booster
TC Electronic
74% similarityShared character: boost, transparent
Tone City All Spark Boost
Tone City
74% similarityShared character: boost, transparent
Wampler Talent Booster
Wampler
74% similarityShared character: boost, transparent
See all alternatives to the T-Rex Karma Boost (cheaper + boutique) →
Questions people ask
What are good alternatives to the T-Rex Karma Boost?+
The closest matches in character are the One Control Granith Grey Booster V2, the Shin's Music Mighty Boost, the Vox TG1-FL4BT Flat 4 Boost. Budget picks: Wampler Decibel, Mooer Flex Boost, Rodenberg M2-Clean Boost. Boutique upgrades: ThorpyFX Judge Dredd Lawbringer Gunshot, Suhr Dual Boost, Walrus Audio Plainsman Clean Boost.
What pairs well with the T-Rex Karma Boost?+
Strong matches from rig and tone-complementarity evidence: Orange Rockerverb 50 MkIII 2-Channel 50W Head, Laney GH100L, Synergy SL2 Module — Orange Rockerverb 50 MkIII 2-Channel 50W Head leans this transparent tone toward mid-forward, which it doesn't make on its own.
How much does the T-Rex Karma Boost cost?+
Around $122.30 (live listing price, updated Oct 23, 2026).