The Fender Engager Boost is a Fender boost pedal, currently around $94.31. Close alternatives include the JAM Pedals Boomster and the 67Audio Libido. It pairs well with the Diezel Hagen 4-Channel 100-Watt and the Friedman Dirty Shirley.
Fender Engager Boost
Fender · pedal
The Fender Engager Boost is a transparent clean boost pedal from Fender, part of the Hammertone series, providing up to 20 dB of clean output gain with a Treble control for high-frequency adjustment. The Engager Boost is designed as a transparent signal amplifier that preserves the guitar and amplifier tone while increasing the output level for pushing downstream amplifier stages into saturation, increasing solo volume, or driving the front end of an overdrive pedal harder. The high-quality JFET circuit maintains clarity and headroom across the full boost range.
What stands out
“A pure boost has , so players who want tonal coloring from their boost should look at colored boost alternatives”
— from the community notes
“Transparent clean boost with up to 20 dB of gain and a Treble control, used to push tube amplifiers into saturation, increase solo volume, or drive overdrive pedals harder”
— from the community notes
“The Fender Engager Boost is a transparent clean boost pedal from Fender, part of the Hammertone series, providing up to 20 dB of clean output gain with a Treble control for high-frequency adjustment”
— from the listing
“The Engager Boost delivers transparent, JFET-quality clean boost with the Treble control adding a useful degree of high-frequency shaping for adapting the boost to different guitar and amplifier pairings”
— from the reviews
“Fender construction quality and the clean boost functionality are the most consistently cited attributes”
— from the community notes
Trade-offs
“The Engager Boost is designed as that preserves the guitar and amplifier tone while increasing the output level for pushing downstream amplifier stages into saturation, increasing solo volume, or driving the f…”
— from the listing
“Most commonly used as the first pedal in a chain to push a tube amplifier front end, or after an overdrive to add output volume”
— from the community notes
- boost
- clean boost
- transparent
- jfet
- treble
- gain
- frequency
- clean
Price updated Oct 24, 2026
Genres the Fender Engager Boost is commonly used in
- Alternative Rock
- Indie Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Country
cited
Inferred from shared tonal signals, not a stated genre tag. - Electronic
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 Fender Engager Boost
Diezel Hagen 4-Channel 100-Watt
Diezel
21% matchInto a transparent tone, Diezel Hagen 4-Channel 100-Watt brings a pull toward high gain that's missing
Comes later in the signal chain
Friedman Dirty Shirley
Friedman
21% matchFriedman Dirty Shirley leans this transparent tone toward high gain, which it doesn't make on its own
Comes later in the signal chain
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Into a transparent tone, Synergy SL2 Module brings a pull toward high gain that's missing
Ceriatone 2202H
Ceriatone
tonal matchComes later in the signal chain
Into a transparent tone, Ceriatone 2202H brings a pull toward high gain that's missing
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt leans this transparent tone toward high gain, which it doesn't make on its own
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchComes later in the signal chain
Into a transparent tone, Hughes & Kettner Warp 7 brings a pull toward high gain that's missing
Egnater Tweaker 88 Head
Egnater
tonal matchComes later in the signal chain
Egnater Tweaker 88 Head leans this transparent tone toward low gain, which it doesn't make on its own
Marshall Studio JCM900 SN20H
Marshall
tonal matchComes later in the signal chain
Marshall Studio JCM900 SN20H leans this transparent tone toward high gain, which it doesn't make on its own
Pedals that stack with the Fender Engager Boost
EarthQuaker Devices Hizumitas
EarthQuaker Devices
19% matchEarthQuaker Devices Hizumitas leans this transparent tone toward high gain, which it doesn't make on its own
Comes later in the signal chain
Soldano SLO
Soldano
19% matchInto a transparent tone, Soldano SLO brings a pull toward high gain that's missing
Comes later in the signal chain
Boss BF-2 Flanger
Boss
15% 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 Boss BF-2 Flanger after Fender Engager Boost in the signal chain, clear of Fender Engager Boost's own gain stage
Comes later in the signal chain
Vox Valvenergy Silk Drive
Vox
13% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.
Vox Valvenergy Silk Drive's own smooth character is the real reason this is worth trying
Comes earlier in the signal chain
Alexander Pedals Now We Are Ghosts Reverb
Alexander Pedals
8% 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 Fender Engager Boost's clean boost voice out front: Alexander Pedals Now We Are Ghosts Reverb goes after Fender Engager 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
Binson Echorec Delay
Binson
8% 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 Binson Echorec Delay after Fender Engager Boost in the signal chain, clear of Fender Engager Boost's own gain stage — 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
Into a transparent tone, Dr. Scientist Frazz Dazzler V2 brings a pull toward fuzzy that's missing
Donner Big Mouth Distortion
Donner
tonal matchComes later in the signal chain
Into a transparent tone, Donner Big Mouth Distortion brings a pull toward high gain that's missing
Cheaper alternatives
Boutique & premium upgrades
Z.Vex Super Hard On
Zvex
67% similarityShared character: boost, subtle, gain
Keeley Katana Clean Boost V2
Keeley
66% similarityShared character: 60 watt all tube combo amplifier, boost, headroom
Xotic RC Booster
Xotic
64% similarityShared character: boost, treble, clarity
Jackson Audio Prism Boost, Buffer,
Jackson Audio
64% similarityShared character: boost, transparent, full
Black Arts Toneworks -Skyboost
Black Arts Toneworks
62% similarityShared character: boost, treble, subtle
JAM Boomster mk2
Jam Pedals
60% similarityShared character: 60 watt all tube combo amplifier, boost, subtle
Similar charactersee all similar tone character →
JAM Pedals Boomster
Jam Pedals
68% similarityShared character: 60 watt all tube combo amplifier, boost, subtle
67Audio Libido
67audio
64% similarityShared character: boost, treble, headroom
Keeley KTM-B Time Machine Boost
Keeley
61% similarityShared character: 60 watt all tube combo amplifier, boost, transparent
Dr. Scientist Boostbot
Dr Scientist
58% similarityShared character: input level, boost, headroom
Attic FX JFET Boost
Attic Fx
58% similarityShared character: input level, boost, alternative
Catalinbread VariOboost
Catalinbread
94% similaritysimilar tone character
See all alternatives to the Fender Engager Boost (cheaper + boutique) →
Questions people ask
What are good alternatives to the Fender Engager Boost?+
The closest matches in character are the JAM Pedals Boomster, the 67Audio Libido, the Keeley KTM-B Time Machine Boost. Budget picks: Blackstar LT-Boost, TC Electronic Spark Mini Booster. Boutique upgrades: Z.Vex Super Hard On, Keeley Katana Clean Boost V2, Xotic RC Booster.
What pairs well with the Fender Engager Boost?+
Strong matches from rig and tone-complementarity evidence: Diezel Hagen 4-Channel 100-Watt, Friedman Dirty Shirley, Synergy SL2 Module — Into a transparent tone, Diezel Hagen 4-Channel 100-Watt brings a pull toward high gain that's missing.
How much does the Fender Engager Boost cost?+
Around $94.31 (live listing price, updated Oct 24, 2026).