The Electro-Harmonix Micro Q-Tron Envelope Filter is an Electro-Harmonix wah pedal, currently around $80.10. Close alternatives include the Emma DiscomBOBulator and the Musitronics Mu-Tron III. It pairs well with the Friedman BE-Mini Head and the Hughes & Kettner Warp 7.
Electro-Harmonix Micro Q-Tron Envelope Filter
Electro-Harmonix · pedal
The Electro-Harmonix Micro Q-Tron is a miniaturized envelope filter pedal delivering auto-wah and funky filter effects triggered by picking attack. Features Q, Volume, and Mode controls with three filter mode selections: Band-Pass Filter (BPF), Low-Pass Filter (LPF), and High-Pass Filter (HPF). The Q control adjusts the resonance and sensitivity of the filter sweep. A smaller, more pedalboard-friendly version of the Q-Tron, suited for funk, soul, R&B, and expressive rock or bass playing.
- filter
- envelope filter
- envelope
- resonance
- expressive
- wah
- dynamic
- touch
Price updated Aug 27, 2026
Genres the Electro-Harmonix Micro Q-Tron Envelope Filter is commonly used in
Amps that pair well with the Electro-Harmonix Micro Q-Tron Envelope Filter
Friedman BE-Mini Head
Friedman
tonal matchFriedman BE-Mini Head stacks more saturation onto a low-gain tone
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchHughes & Kettner Warp 7 stacks more saturation onto a low-gain tone
Synergy SL2 Module
Synergy
tonal matchSynergy SL2 Module stacks more saturation onto a low-gain tone
Hiwatt Hi-Gain 100W Head
Hiwatt
tonal matchHiwatt Hi-Gain 100W Head stacks more saturation onto a low-gain tone
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchHughes & Kettner Coreblade stacks more saturation onto a low-gain tone
Friedman Phil X Signature
Friedman
tonal matchFriedman Phil X Signature stacks more saturation onto a low-gain tone
EVH 000
Evh
tonal matchEVH 000 stacks more saturation onto a low-gain tone
ENGL Marty Friedman Inferno E766
Engl
tonal matchENGL Marty Friedman Inferno E766 stacks more saturation onto a low-gain tone
Pedals that stack with the Electro-Harmonix Micro Q-Tron Envelope Filter
Wren and Cuff Box of War Small Foot Fuzz
Wren And Cuff
19% matchWren and Cuff Box of War Small Foot Fuzz leans toward sustaining, and that's a real, usable character to pair with
Greer Black Mountain
Greer
19% matchGreer Black Mountain leans toward fuzzy, and that's a real, usable character to pair with
EarthQuaker Devices Afterneath
EarthQuaker Devices
6% matchEarthQuaker Devices Afterneath's ambient voice goes after Electro-Harmonix Micro Q-Tron Envelope Filter in the signal chain — it's not there to compete with Electro-Harmonix Micro Q-Tron Envelope Filter's own dynamic character — goes in the amp's FX loop (or last, into a clean amp)
Boss DD-2 Digital Delay
Boss
6% matchKeep Boss DD-2 Digital Delay after Electro-Harmonix Micro Q-Tron Envelope Filter in the signal chain, clear of Electro-Harmonix Micro Q-Tron Envelope Filter'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 stacks more saturation onto a low-gain tone
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchDr. Scientist Frazz Dazzler V2 layers fuzz over a low-gain tone
Crowther Prunes
Crowther
tonal matchCrowther Prunes layers fuzz over a low-gain tone
EarthQuaker Devices Dirt Transmitter
EarthQuaker Devices
tonal matchEarthQuaker Devices Dirt Transmitter layers fuzz over a low-gain tone
Cheaper alternatives
Boutique & premium upgrades
Carl Martin Ottawa
Carl Martin
75% similarityShared character: soul, overdrive_pedals, mono_synth
Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter
Carl Martin
72% similarityShared character: soul, overdrive_pedals, sensitivity
Electro-Harmonix Q-Tron Plus
Electro-Harmonix
72% similarity“A smaller, more pedalboard-friendly version of the Q-Tron, suited for funk, soul, R&B, and expressive rock or bass playing”
Guyatone Wah Rocker WR3
pedal
69% similarityShared character: mono_synth, sensitivity, wah
Maxon AF-9 Auto Filter
Maxon
68% similarityShared character: soul, sensitivity, natural_resonance
Death By Audio Deep Animation
Death By Audio
66% similarityShared character: overdrive_pedals, sensitivity, tight_tracking
Similar charactersee all similar tone character →
Emma DiscomBOBulator
pedal
76% similarityShared character: soul, mono_synth, sensitivity
Musitronics Mu-Tron III
Musitronics
70% similarityShared character: pick_attack, filter, touch
Vox V863CA Auto Wah
Vox
98% similaritysimilar tone character
Smokin' Amp Co. Micro V Envelope Filter
Smokin Amp Co
97% similaritysimilar tone character
Electro-Harmonix Micro Q-Tron
Electro-Harmonix
97% similaritysimilar tone character
MXR M120 Auto Q Wah
MXR
97% similaritysimilar tone character
See all alternatives to the Electro-Harmonix Micro Q-Tron Envelope Filter (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix Micro Q-Tron Envelope Filter?+
The closest matches in character are the Emma DiscomBOBulator, the Musitronics Mu-Tron III, the Vox V863CA Auto Wah. Budget picks: Demon FX Pearl White Auto Wah, Donner Dynamic wah. Boutique upgrades: Carl Martin Ottawa, Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter, Electro-Harmonix Q-Tron Plus.
What pairs well with the Electro-Harmonix Micro Q-Tron Envelope Filter?+
Strong matches from rig and tone-complementarity evidence: Friedman BE-Mini Head, Hughes & Kettner Warp 7, Synergy SL2 Module — Friedman BE-Mini Head stacks more saturation onto a low-gain tone.
How much does the Electro-Harmonix Micro Q-Tron Envelope Filter cost?+
Around $80.10 (live listing price, updated Aug 27, 2026).