The Diezel Zerrer 2-Channel Preamp is a Diezel preamp pedal, currently around $590. Close alternatives include the Electronic Audio Experiments The Bard and the NuX NDS-5 Fireman Distortion Dual Brown Sound. It pairs well with the Electro-Harmonix Green Russian Big Muff and the Cusack Music Screamer.
Diezel Zerrer 2-Channel Preamp
Diezel · pedal
The Diezel Zerrer is a two-channel high-gain preamp pedal from the German boutique amplifier builder, designed to deliver the character and feel of a Diezel amplifier front end in a compact pedal format. Both channels provide independent gain, bass, middle, and treble controls alongside a shared presence and master volume section. Channel 1 delivers clean-to-crunch tones while Channel 2 delivers the high-gain British metal character that defines Diezel amplifiers. The Zerrer can be used directly into a power amplifier or effects return, making it a complete preamp solution. Widely used in high-gain rock and metal rigs.
What stands out
“Used in high-gain rock and metal rigs as a primary preamp driving a power amp and cabinet or as a front-end gain stage before a conventional amplifier”
— from the community notes
“Diezel preamp circuit delivers authentic high-gain character with the tight, well-defined low end and powerful harmonic content associated with the German builder amplifiers”
— from the reviews
“Channel 2 high-gain character is tight and articulate, making it well-suited for technical metal and modern rock playing”
— from the reviews
“articulate gain character and powerful tone-shaping of the reference amplifiers”
— from the community notes
“praised by for capturing the tight”
— from the community notes
Trade-offs
“the full preamp format adds more complexity to rig setup than simple single-channel drive pedals”
— from the reviews
- high gain
- rock
- articulate
- tight
- stage
- eq
- metal
Price updated Oct 24, 2026
Genres the Diezel Zerrer 2-Channel Preamp is commonly used in
- Metal
- Rock
- Hard Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Djent
cited
Inferred from shared tonal signals, not a stated genre tag. - Heavy Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Diezel Zerrer 2-Channel Preamp
Electro-Harmonix Green Russian Big Muff
Electro-Harmonix
19% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
Feed a high gain signal into Electro-Harmonix Green Russian Big Muff and it comes out closer to mid-forward
Comes earlier in the signal chain
Cusack Music Screamer
Cusack Music
18% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
Feed a high gain signal into Cusack Music Screamer and it comes out closer to mid-forward
Comes earlier in the signal chain
Electro-Harmonix Small Stone
Electro-Harmonix
17% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (high gain → lush)
Put Electro-Harmonix Small Stone after Diezel Zerrer 2-Channel Preamp in the signal chain, clear of Diezel Zerrer 2-Channel Preamp's own gain stage
Comes earlier in the signal chain
Crazy Tube Circuits Golden Ratio
Crazy Tube Circuits
14% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.
Crazy Tube Circuits Golden Ratio leans toward tight, and that's a real, usable character to pair with
Comes earlier in the signal chain
MXR Analog Delay
MXR
13% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (high gain → slapback)
Keep MXR Analog Delay after Diezel Zerrer 2-Channel Preamp in the signal chain, clear of Diezel Zerrer 2-Channel Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Suhr Discovery
Suhr
13% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put Suhr Discovery after Diezel Zerrer 2-Channel Preamp in the signal chain, clear of Diezel Zerrer 2-Channel Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
MXR CAE Wah
MXR
tonal matchComes earlier in the signal chain
MXR CAE Wah goes in front of Diezel Zerrer 2-Channel Preamp — a wah tracks picking dynamics best on the raw signal
JAM Pedals RetroVibe Mk.4
Jam Pedals
tonal matchComes earlier in the signal chain
Stack JAM Pedals RetroVibe Mk.4 on top and a high gain tone tightens toward mid-forward
Cheaper alternatives
Friedman BE-OD Deluxe
Friedman
55% similarityShared character: channel 2, two channels, presence
Friedman BE-OD
Friedman
54% similarityShared character: metal, presence, crunch
MXR Super Badass Distortion
MXR
53% similarityShared character: treble, crunch, bass
Laney Ironheart Loudpedal
Laney
53% similarityShared character: metal, treble, bass
Airis Effects 51-Filthy
Airis Effects
52% similarityShared character: metal, high gain settings, full
Keeley Phat Mod
Keeley
52% similarityShared character: presence, bass
Similar charactersee all similar tone character →
Electronic Audio Experiments The Bard
Electronic Audio Experiments
55% similarityShared character: presence, full
NuX NDS-5 Fireman Distortion Dual Brown Sound
Nux
51% similarityShared character: two channels, presence, treble
Mooer 008
Mooer
50% similarityShared character: high gain settings
Friedman Small Box Overdrive
Friedman
95% similaritysimilar tone character
See all alternatives to the Diezel Zerrer 2-Channel Preamp (cheaper + boutique) →
Questions people ask
What are good alternatives to the Diezel Zerrer 2-Channel Preamp?+
The closest matches in character are the Electronic Audio Experiments The Bard, the NuX NDS-5 Fireman Distortion Dual Brown Sound, the Mooer 008. Budget picks: Friedman BE-OD Deluxe, Friedman BE-OD, MXR Super Badass Distortion.
What pairs well with the Diezel Zerrer 2-Channel Preamp?+
Strong matches from rig and tone-complementarity evidence: Electro-Harmonix Green Russian Big Muff, Cusack Music Screamer, Electro-Harmonix Small Stone — Feed a high gain signal into Electro-Harmonix Green Russian Big Muff and it comes out closer to mid-forward.
How much does the Diezel Zerrer 2-Channel Preamp cost?+
Around $590 (live listing price, updated Oct 24, 2026).