The Electro-Harmonix XO Micro Q-Tron is an Electro-Harmonix wah pedal, currently around $80.10. Close alternatives include the Emma DiscomBOBulator and the Electro-Harmonix Nano Q-Tron. It pairs well with the Blackstar St. James 100 and the Friedman Dirty Shirley.
Electro-Harmonix XO Micro Q-Tron
Electro-Harmonix · pedal
The Electro-Harmonix XO Micro Q-Tron is an envelope-controlled filter pedal in EHX's compact XO die-cast format, derived from the classic Mu-Tron III design. Playing dynamics drive the filter: harder picking produces a wider, more dramatic frequency sweep for an auto-wah response. Drive and Q controls set input sensitivity and resonance; a three-position mode switch selects Low Pass, Band Pass, or High Pass filtering. The XO format presents it in a rugged, compact enclosure.
- filter
- drive
- envelope
- resonance
- auto wah
- dynamic
- quack
- response
Price updated Aug 27, 2026
Genres the Electro-Harmonix XO Micro Q-Tron is commonly used in
- Jazz
- Funk
- Experimental
- Soul
cited
Inferred from shared tonal signals, not a stated genre tag. - Reggae
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Electro-Harmonix XO Micro Q-Tron
Blackstar St. James 100
Blackstar
20% matchPut Blackstar St. James 100 in front and the mid-forward tone leans further toward high gain
Friedman Dirty Shirley
Friedman
20% matchPut Friedman Dirty Shirley in front and the mid-forward tone leans further toward high gain
Friedman BE-Mini Head
Friedman
tonal matchFriedman BE-Mini Head layers high gain onto an already mid-forward signal
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchHughes & Kettner Warp 7 layers high gain onto an already mid-forward signal
Synergy SL2 Module
Synergy
tonal matchSynergy SL2 Module layers high gain onto an already mid-forward signal
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchPut Hughes & Kettner Coreblade in front and the mid-forward tone leans further toward high gain
Mesa Boogie Triple Crown TC-100 Head
Mesa Boogie
tonal matchRun mid-forward into Mesa Boogie Triple Crown TC-100 Head for more high gain on top
Hiwatt Hi-Gain 100W Head
Hiwatt
tonal matchHiwatt Hi-Gain 100W Head stacks high gain on top of the mid-forward already here
Pedals that stack with the Electro-Harmonix XO Micro Q-Tron
Greer Black Mountain
Greer
21% matchGreer Black Mountain layers fuzzy onto an already mid-forward signal
Electro-Harmonix Hot Wax
Electro-Harmonix
19% matchElectro-Harmonix Hot Wax stacks high gain on top of the mid-forward already here
Red Witch Titan
Red Witch
8% matchKeep Electro-Harmonix XO Micro Q-Tron's dynamic voice out front: Red Witch Titan goes after Electro-Harmonix XO Micro Q-Tron 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)
Caroline Guitar Company Kilobyte
Caroline Guitar Company
8% matchRun Caroline Guitar Company Kilobyte after Electro-Harmonix XO Micro Q-Tron in the signal chain, clear of Electro-Harmonix XO Micro Q-Tron's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Cusack Music Carolina Reaper Overdrive Fuzz
Cusack Music
tonal matchCusack Music Carolina Reaper Overdrive Fuzz layers high gain onto an already mid-forward signal
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchDr. Scientist Frazz Dazzler V2 stacks fuzzy on top of the mid-forward already here
Tone City Hot Mama Overdrive
Tone City
tonal matchPut Tone City Hot Mama Overdrive in front and the mid-forward tone leans further toward high gain
Cornerstone Cio-Ant
Cornerstone
tonal matchPut Cornerstone Cio-Ant in front and the mid-forward tone leans further toward high gain
Cheaper alternatives
Boutique & premium upgrades
Electro-Harmonix Q-Tron Plus
Electro-Harmonix
73% similarityShared character: peak, effect, natural_resonance
Electro-Harmonix Riddle Q Balls
Electro-Harmonix
69% similarityShared character: extreme_settings, peak, sensitivity
Maxon AF-9 Auto Filter
Maxon
69% similarityShared character: peak, sensitivity, natural_resonance
Fairfield Circuitry Long Life
Fairfield Circuitry
66% similarityShared character: peak, natural_resonance, filter
Keeley Neutrino V2
Keeley
97% similaritysimilar tone character
Ashdown Type 23 Three Band Filter
Ashdown
97% similaritysimilar tone character
Similar charactersee all similar tone character →
Emma DiscomBOBulator
pedal
73% similarityShared character: sensitivity, tight_tracking, pick_attack
Electro-Harmonix Nano Q-Tron
Electro-Harmonix
72% similarityShared character: warm, peak, 8_impedance
Dunlop Cry Baby
Dunlop
70% similarityShared character: peak, natural_resonance, signal_chain
Musitronics Mu-Tron III
Musitronics
70% similarity“is an envelope-controlled filter pedal in EHX's compact XO die-cast format, derived from the classic Mu-Tron III design”
Guyatone WRm5 Wah Rocker
Guyatone
67% similarityShared character: effect, pick_attack, filter
Electro-Harmonix Micro Q-Tron Envelope Filter
Electro-Harmonix
97% similaritysimilar tone character
See all alternatives to the Electro-Harmonix XO Micro Q-Tron (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix XO Micro Q-Tron?+
The closest matches in character are the Emma DiscomBOBulator, the Electro-Harmonix Nano Q-Tron, the Dunlop Cry Baby. Budget picks: Maestro Agena, Donner Dynamic wah. Boutique upgrades: Electro-Harmonix Q-Tron Plus, Electro-Harmonix Riddle Q Balls, Maxon AF-9 Auto Filter.
What pairs well with the Electro-Harmonix XO Micro Q-Tron?+
Strong matches from rig and tone-complementarity evidence: Blackstar St. James 100, Friedman Dirty Shirley, Friedman BE-Mini Head — Put Blackstar St. James 100 in front and the mid-forward tone leans further toward high gain.
How much does the Electro-Harmonix XO Micro Q-Tron cost?+
Around $80.10 (live listing price, updated Aug 27, 2026).
Compare
- vs Keeley Neutrino V2
- vs Electro-Harmonix Micro Q-Tron Envelope Filter
- vs Ashdown Type 23 Three Band Filter