The JAM Boomster mk2 is a Jam Pedals overdrive pedal, currently around $279. Close alternatives include the Dr. Scientist Boostbot and the Behringer PB100 Preamp Booster. It pairs well with the Orange Rockerverb 50 MkIII 2-Channel 50W Head and the Diezel Hagen 4-Channel 100-Watt.
JAM Boomster mk2
Jam Pedals · pedal
The JAM Pedals Boomster MK2 is a premium clean boost pedal from the Greek boutique builder JAM Pedals, designed to provide transparent, wide-bandwidth signal amplification without tonal coloring or harmonic alteration. The Boomster provides up to 30dB of boost, making it effective for driving tube amplifiers into natural saturation, increasing lead-level output, and conditioning the signal before other effects. JAM Pedals builds all their products by hand in Athens with individually selected components.
What stands out
“One of the most highly regarded boutique clean boosts available, praised for exceptional transparency and the wide bandwidth that preserves the full frequency content of the guitar signal”
— from the community notes
“The Boomster MK2 delivers clean, transparent boost with exceptional bandwidth and noise performance that sets it apart from cheaper clean boost alternatives”
— from the reviews
“An excellent investment for players who want a reference-quality clean boost as a permanent part of their signal chain”
— from the reviews
“The Boomster provides up to 30dB of boost, making it effective for driving tube amplifiers into natural saturation, increasing lead-level output, and conditioning the signal before other effects”
— from the listing
“the greek hand-building quality and component selection ensure consistent”
— from the community notes
- bandwidth
- boost
- clean boost
- transparent
- lead
- consistent
- full
- natural breakup
Price updated Oct 24, 2026
Genres the JAM Boomster mk2 is commonly used in
Amps that pair well with the JAM Boomster mk2
Orange Rockerverb 50 MkIII 2-Channel 50W Head
Orange
19% 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
Diezel Hagen 4-Channel 100-Watt
Diezel
18% matchDiezel Hagen 4-Channel 100-Watt 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
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
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
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
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
Friedman BE-Mini Head
Friedman
tonal matchComes later in the signal chain
Friedman BE-Mini Head leans this transparent tone toward high gain, which it doesn't make on its own
Pedals that stack with the JAM Boomster mk2
Sola Sound Tone Bender MkII
Sola Sound
17% matchInto a transparent tone, Sola Sound Tone Bender MkII brings a pull toward fuzzy that's missing
Comes later in the signal chain
Wren and Cuff Box of War OG
Wren And Cuff
17% 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
MXR ZW90 Wylde Phase
MXR
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.
Keep MXR ZW90 Wylde Phase after JAM Boomster mk2 in the signal chain, clear of JAM Boomster mk2's own gain stage
Comes later in the signal chain
Vox Valvenergy Silk Drive
Vox
10% 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
Electro-Harmonix Memory Boy Analog Delay
Electro-Harmonix
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 Electro-Harmonix Memory Boy Analog Delay after JAM Boomster mk2 in the signal chain, clear of JAM Boomster mk2's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Fender Hammertone Reverb
Fender
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.
Fender Hammertone Reverb's lush voice goes after JAM Boomster mk2 in the signal chain — it's not there to compete with JAM Boomster mk2's own clean boost character — 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
Put Warm Audio Jet Phaser after JAM Boomster mk2: modulation sits after the gain for a defined swirl
Cheaper alternatives
Catalinbread SuperCharged Overdrive
Catalinbread
63% similarityShared character: subtle enhancement, boost, natural
Warm Audio Dirty Boy Jr. Booster
Warm Audio
62% similarityShared character: boost, subtle, transparent
Fender Engager Boost
Fender
60% similarityShared character: 60 watt all tube combo amplifier, boost, subtle
Carl Martin Boost Kick
Carl Martin
58% similarityShared character: noise, boost, subtle
Black Arts Toneworks -Skyboost
Black Arts Toneworks
58% similarityShared character: boost, subtle, transparent
Xotic RC Booster
Xotic
56% similarityShared character: boost, transparent, gain
Boutique & premium upgrades
Similar charactersee all similar tone character →
Dr. Scientist Boostbot
Dr Scientist
57% similarityShared character: boost, natural, subtle
Behringer PB100 Preamp Booster
Behringer
52% similarityShared character: boost, natural, alternative
Catalinbread VariOboost
Catalinbread
90% similaritysimilar tone character
Danelectro CEO
Danelectro
90% similaritysimilar tone character
Greer Amps Sonic Boom
Greer
90% similaritysimilar tone character
See all alternatives to the JAM Boomster mk2 (cheaper + boutique) →
Questions people ask
What are good alternatives to the JAM Boomster mk2?+
The closest matches in character are the Dr. Scientist Boostbot, the Behringer PB100 Preamp Booster, the Catalinbread VariOboost. Budget picks: Catalinbread SuperCharged Overdrive, Warm Audio Dirty Boy Jr. Booster, Fender Engager Boost. Boutique upgrades: Analog Man King of Tone.
What pairs well with the JAM Boomster mk2?+
Strong matches from rig and tone-complementarity evidence: Orange Rockerverb 50 MkIII 2-Channel 50W Head, Diezel Hagen 4-Channel 100-Watt, 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 JAM Boomster mk2 cost?+
Around $279 (live listing price, updated Oct 24, 2026).