The JAM Pedals Eureka is a Jam Pedals fuzz pedal. Close alternatives include the EarthQuaker Devices Hoof Germanium and the MXR Dunlop Germanium Fuzz. It pairs well with the Vox AC30 Guitar Combo Amp and the Boss Acoustic Singer Pro.
JAM Pedals Eureka
Jam Pedals · pedal
The JAM Pedals Eureka is a germanium fuzz pedal from Greek boutique maker JAM Pedals, using vintage germanium transistors to produce the warm, soft-clipping fuzz character associated with 1960s germanium fuzz designs. JAM Pedals is known for sourcing premium vintage components for their germanium-based designs, and the Eureka delivers the warm, dark, temperamental character of vintage germanium fuzz circuits with Greek boutique handmade quality. The Eureka suits blues, vintage rock, and psych rock applications where the specific germanium warmth is the tonal goal.
What stands out
“The Eureka suits blues, vintage rock, and psych rock applications where the specific germanium warmth is the tonal goal”
— from the listing
“The Eureka Fuzz delivers authentic vintage germanium fuzz character with JAM Pedals premium vintage component sourcing and Greek boutique construction quality, making it a serious option for players who want the specific warmth and characte…”
— from the reviews
“Vintage germanium fuzz from Greek boutique maker JAM Pedals, using premium vintage germanium transistors for authentic warm, dark, temperamental vintage fuzz character”
— from the community notes
“The JAM Pedals Eureka is a germanium fuzz pedal from Greek boutique maker JAM Pedals, using vintage germanium transistors to produce the warm, soft-clipping fuzz character associated with 1960s germanium fuzz designs”
— from the listing
“Best suited for players who specifically want genuine vintage germanium warmth”
— from the reviews
Trade-offs
“The germanium nature makes temperature sensitivity a consideration for outdoor or climate-variable gigs”
— from the community notes
“the soft-clipping germanium character produces warmth and natural compression distinctly different from silicon alternatives”
— from the reviews
- vintage
- germanium
- germanium fuzz
- transistor
- germanium warmth
- rock
- clipping
- dark
Genres the JAM Pedals Eureka is commonly used in
Amps that pair well with the JAM Pedals Eureka
Vox AC30 Guitar Combo Amp
Vox
25% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Vox AC30 Guitar Combo Amp's bright balances out the dark tone
Comes later in the signal chain
Boss Acoustic Singer Pro
Boss
25% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Boss Acoustic Singer Pro leans bright right where the dark tone needs it
Comes later in the signal chain
Díaz CD-100 Amp Head
Diaz
tonal matchComes later in the signal chain
Díaz CD-100 Amp Head's bright balances out the dark tone
Vox AC30 Rose Morris 80s
amplifier
tonal matchComes later in the signal chain
Run Vox AC30 Rose Morris 80s after it and the dark edge settles into something more bright
Bad Cat *PRE Order* Hot Cat Head
Bad Cat
tonal matchComes later in the signal chain
Where this leans dark, Bad Cat *PRE Order* Hot Cat Head answers back bright
Marshall JCM800 2205 50-Watt Amplifier Head
Marshall
tonal matchComes later in the signal chain
Where this leans dark, Marshall JCM800 2205 50-Watt Amplifier Head answers back bright
Vox Mini SuperBeetle Bass
Vox
tonal matchComes later in the signal chain
Vox Mini SuperBeetle Bass leans this transparent tone toward fuzzy, which it doesn't make on its own
Blackstar HT Studio 20H
Blackstar
tonal matchComes later in the signal chain
Run Blackstar HT Studio 20H after it and the dark edge settles into something more bright
Pedals that stack with the JAM Pedals Eureka
Way Huge Pork Loin
Way Huge
19% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → bright)
Way Huge Pork Loin leans toward transparent, and that's a real, usable character to pair with
Comes earlier in the signal chain
Ashdown Geezer Butler Signature
Ashdown
19% matchInto a transparent tone, Ashdown Geezer Butler Signature brings a pull toward low gain that's missing
Comes earlier in the signal chain
Orange King-Comp
Orange
15% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (dark → glassy)
Orange King-Comp leans toward bright, and that's a real, usable character to pair with
Comes earlier in the signal chain
Voodoo Lab Tremolo
pedal
14% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Voodoo Lab Tremolo's bright voice goes after JAM Pedals Eureka in the signal chain — it's not there to compete with JAM Pedals Eureka's own germanium character
Comes later in the signal chain
Boss RV-6 Reverb
Boss
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.
Boss RV-6 Reverb's shimmer voice goes after JAM Pedals Eureka in the signal chain — it's not there to compete with JAM Pedals Eureka's own germanium character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Chase Bliss Automatone CXM 1978
Chase Bliss Audio
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 Chase Bliss Automatone CXM 1978 after JAM Pedals Eureka in the signal chain, clear of JAM Pedals Eureka's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Maxon FF10 Fuzz Elements Fire
Maxon
tonal matchMaxon FF10 Fuzz Elements Fire's bright balances out the dark tone
JHS Pedals Hard Drive Distortion
JHS Pedals
tonal matchComes earlier in the signal chain
Run JHS Pedals Hard Drive Distortion after it and the dark edge settles into something more bright
Alternativessee all similar tone character →
EarthQuaker Devices Hoof Germanium
EarthQuaker Devices
69% similarityShared character: sensitivity, warm, vintage charm
MXR Dunlop Germanium Fuzz
MXR
65% similarityShared character: sensitivity, blues players, warm
Spaceman Sputnik 1
Spaceman
62% similarityShared character: blues players, warm, vintage charm
EarthQuaker Devices Erupter
EarthQuaker Devices
59% similarityShared character: sensitivity, blues players, warm
Cusack Music Screamer Fuzz Germanium
Cusack Music
58% similarityShared character: sensitivity, warm, alternative
Mission Engineering Delta III GE Germanium Fuzz
Mission Engineering
58% similarityShared character: sensitivity, warm
Dunlop JIM Dunlop JH-M8 Jimi Hendrix Gypsy
Dunlop
57% similarityShared character: sensitivity, warm, alternative
JHS Pollinator
JHS Pedals
57% similarityShared character: sensitivity, blues players, warm
King Tone Guitar Mini Fuzz V2
King Tone
57% similarityShared character: sensitivity, warm, vintage charm
MXR Mdu JHM8
MXR
57% similarityShared character: sensitivity, warm
Spaceman Sputnik IIb: Deluxe Germanium Fuzz
Spaceman
56% similarityShared character: vintage charm
Crazy Tube Circuits Constellation
Crazy Tube Circuits
56% similarityShared character: sensitivity, warm
See all alternatives to the JAM Pedals Eureka (cheaper + boutique) →
Questions people ask
What are good alternatives to the JAM Pedals Eureka?+
The closest matches in character are the EarthQuaker Devices Hoof Germanium, the MXR Dunlop Germanium Fuzz, the Spaceman Sputnik 1.
What pairs well with the JAM Pedals Eureka?+
Strong matches from rig and tone-complementarity evidence: Vox AC30 Guitar Combo Amp, Boss Acoustic Singer Pro, Díaz CD-100 Amp Head — Vox AC30 Guitar Combo Amp's bright balances out the dark tone.