Electro-Harmonix Q-Tron
This verstile envelop filter will give you unbelievably funky autowah effects.
The Electro-Harmonix XO Q-Tron is an envelope filter guitar effects pedal that has a switchable boost. The Q-Tron pedal's filter modes deliver an unlimited supply of n... read more
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Trusted musician and artist reviews for Electro-Harmonix Q-Tron
Based on 2 Reviews

Super funky
One of the best machines for funk. It's a little big and needs his own adaptor (24v). You'll need a comp or limiter to tame the volume spikes.
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Description
This verstile envelop filter will give you unbelievably funky autowah effects.
The Electro-Harmonix XO Q-Tron is an envelope filter guitar effects pedal that has a switchable boost. The Q-Tron pedal's filter modes deliver an unlimited supply of new auto-wah effects that drip with attitude. Increased frequency response and improved signal-to-noise ratio make the Electro-Harmonix Q-Tron envelope filter pedal perfect for use with any instrument. Bootsy Collins and George Clinton already have theirs. How about you?
Specifications
- True bypass
- Selectable low pass, band pass and high pass filters
- Resonant peak control to adjust the filter's Q from subtle to dramatic
- Hi and lo frequency response modes
- Adjustable gain knob and boost switch
- Sweep direction switch for up or down filter sweeps
- Tough and compact die-cast chassis
- 24DC-100 power supply included
Not bad but not comfy too
Powerful thing, precise sound tuning (but the bad thing is it very depends on amp you use so u have to tune it every time you change amp), nice classic Bootsy-like sound, and the worst thing for me it's 24V.