The Spaceman Effects Atlas IV is a Spaceman overdrive pedal, currently around $120. Close alternatives include the Spaceman Atlas III and the Strymon Fairfax Preamp. It pairs well with the Diezel VH4 4-Channel 100-Watt and the EVH 5150 III.
Spaceman Effects Atlas IV
Spaceman · pedal
The Spaceman Effects Atlas IV is a boutique preamp and boost pedal, the fourth revision of Spaceman's Atlas design. It delivers a warm, harmonically rich clean boost that thickens the midrange and adds weight without markedly altering the underlying tone, and pushes a valve amp into natural breakup as the level is raised. It is built as an always-on preamp stage as much as a solo boost, hand-built in Portland, Oregon in Spaceman's limited-run format.
What stands out
“It is built as an always-on preamp stage as much as a solo boost, hand-built in Portland, Oregon in Spaceman's limited-run format”
— from the listing
“harmonically rich clean boost that thickens the midrange and adds weight”
— from the listing
“Players who want premium refined preamp boost find the Atlas IV an excellent option”
— from the community notes
“Spaceman's enhanced Atlas IV preamp boost, praised for improved warm, harmonically rich character over earlier versions with exceptional hand-built quality”
— from the community notes
“The Atlas IV is a warm, harmonically rich boost : it adds midrange weight and body, which makes it useful as an always-on preamp stage”
— from the reviews
Trade-offs
“and pushes a valve amp into natural breakup as the level is raised”
— from the listing
- harmonically rich
- boost
- clean boost
- stage
- midrange
- natural breakup
- rich
Price updated Oct 24, 2026
Genres the Spaceman Effects Atlas IV is commonly used in
- Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Classic Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Spaceman Effects Atlas IV
Diezel VH4 4-Channel 100-Watt
Diezel
20% matchInto a transparent tone, Diezel VH4 4-Channel 100-Watt brings a pull toward high gain that's missing
Comes later in the signal chain
EVH 5150 III
Evh
20% matchEVH 5150 III leans toward high gain, and that's a real, usable character to pair with
Comes later in the signal chain
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
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
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
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
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchComes later in the signal chain
Hughes & Kettner Warp 7 leans this transparent tone toward high gain, which it doesn't make on its own
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
Pedals that stack with the Spaceman Effects Atlas IV
Wren and Cuff Box of War Small Foot Fuzz
Wren And Cuff
21% matchWren and Cuff Box of War Small Foot Fuzz leans this transparent tone toward high gain, which it doesn't make on its own
Comes later in the signal chain
JHS Smiley
JHS Pedals
20% matchJHS Smiley leans this transparent tone toward fuzzy, which it doesn't make on its own
Comes later in the signal chain
Boss BF-2 Flanger
Boss
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.
Keep Boss BF-2 Flanger after Spaceman Effects Atlas IV in the signal chain, clear of Spaceman Effects Atlas IV'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
Neunaber Wet Mono Reverb Pedal
pedal
7% 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 Neunaber Wet Mono Reverb Pedal after Spaceman Effects Atlas IV in the signal chain, clear of Spaceman Effects Atlas IV's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
MXR M169 Carbon Copy Analog Delay
MXR
7% 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 MXR M169 Carbon Copy Analog Delay after Spaceman Effects Atlas IV in the signal chain, clear of Spaceman Effects Atlas IV'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
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 Spaceman Effects Atlas IV — modulation sits after the gain for a defined swirl
Cheaper alternatives
Boutique & premium upgrades
Xotic ACB-V2
Xotic
59% similarityShared character: circuit, rich, boost
Mad Professor Loud N Proud
Mad Professor
58% similarityShared character: circuit, boost
Browne Amplification Carbon
Browne Amplification
52% similarityShared character: circuit, boost, warm
Strymon Riverside
Strymon
49% similarityShared character: rich, boost, stage
Blackstar Dept. 10 Boost
Blackstar
91% similaritysimilar tone character
Xotic BB Preamp V1.5
Xotic
90% similaritysimilar tone character
Similar charactersee all similar tone character →
Spaceman Atlas III
Spaceman
74% similarity“the fourth revision of Spaceman's Atlas design”
Strymon Fairfax Preamp
Strymon
66% similarityShared character: warm
SONICAKE Sonic Super Master
Sonicake
61% similarityShared character: boost, stage
MXR EP3 Echoplex Preamp
MXR
58% similarityShared character: circuit, boost, warm
Knight Audio Technologies Kat-STB
pedal
58% similarityShared character: boost
K Pedals Vintage Preamp
K Pedals
54% similarityShared character: boost, warm, stage
See all alternatives to the Spaceman Effects Atlas IV (cheaper + boutique) →
Questions people ask
What are good alternatives to the Spaceman Effects Atlas IV?+
The closest matches in character are the Spaceman Atlas III, the Strymon Fairfax Preamp, the SONICAKE Sonic Super Master. Budget picks: Xotic BB Preamp, MXR Super Badass Distortion, Marshall Guv'nor. Boutique upgrades: Xotic ACB-V2, Mad Professor Loud N Proud, Browne Amplification Carbon.
What pairs well with the Spaceman Effects Atlas IV?+
Strong matches from rig and tone-complementarity evidence: Diezel VH4 4-Channel 100-Watt, EVH 5150 III, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt — Into a transparent tone, Diezel VH4 4-Channel 100-Watt brings a pull toward high gain that's missing.
How much does the Spaceman Effects Atlas IV cost?+
Around $120 (live listing price, updated Oct 24, 2026).