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Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal 

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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 unl...Click To Read More About This Product

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OVERVIEW

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?

FEATURES
  • 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

Get phat and funky today!

Reviews
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Review Snapshot

by PowerReviews
Electro-HarmonixXO Q-Tron Envelope Filter Guitar Effects Pedal
 
4.1

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

67%

of respondents would recommend this to a friend.

Pros

  • Responsive (4)
  • Excellent sound quality (3)
  • Versatile (3)

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Experienced (3)

Reviewed by 7 customers

Displaying reviews 1-7

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(4 of 5 customers found this review helpful)

 
5.0

Complete Envelope Filter

By Echoman-AAYcL

from Undisclosed

See all my reviews

Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

This filter is the best I've used and owned. It's pricey but I got mine used. I liked this model since you have the ability to sculped and tweak the effect much more than the microQtron. The best feature is the mix setting which mixes the straight guitar tone with the effect...very toneful and useful. The gain boost is useless in my opinion, but the rest is all worth it. I use it for guitar and bass and it's the perfect envelope filter. If you can afford this model or get it used like I did, it's a much better overall unit compared to the micro.

(3 of 5 customers found this review helpful)

 
5.0

Responsive, flexible envilope filter

By Scroggy

from Tennessee

About Me Experienced

See all my reviews

Verified Buyer

Pros

  • Excellent Sound Quality
  • Flexible
  • Responsive
  • Versatile

Cons

    Best Uses

    • All

    Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

    Great for the songs that require fast responses and are otherwise difficult to impossible to play with a wah. Tried the doctor Q first, but it was a no go. So i switched to this

    (2 of 2 customers found this review helpful)

     
    5.0

    Sounds Just Like A MuTron To Me

    By hippiekarl

    from Pahrump, NV

    About Me Professional Musician

    See all my reviews

    Ask me a question

    Pros

    • Excellent Sound Quality
    • Good Selection Of Effects
    • Responsive
    • Versatile

    Cons

    • Very Sensitive Controls

    Best Uses

    • Events
    • Performances
    • Round 3d Notes

    Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

    This is the ultimate Envelope Filter, as far as I'm concerned. There's a pricier EHX-Tron than this, but unless you need it's own little 'send'/'return' loop, this one's the same. It's a little involved-looking at first glance, but for the general range of guitar filter 4 of the 6 knobs are 2 or 4-position selectors that--once set--can be left alone (filter-type, sweep, etc). Only the 4th and 5th knobs really need to be tweaked for single coils/HBs et al: the peak frequency and the sensitivity (squelch). The knob named 'Gain' is really 'Sensitivity' when the useless 'Boost' is clicked off.
    This pedal has to go first in line (2nd if you employ a Fuzz) to sound good with other effects. You'll really want your distortion, Vibrato, delays *downwind* of this. This sounds great in front of distortion and delay: less 'quacky', but still BIG FAT notes. It's polyphonic, too (doesn't fart out much when you play 5 or 6-string chords). Now ~that's~ a quality envelope filter!
    It's pretty big; think 3 spaces on a p-board. Loud dimmer-switch (*click!*)....But if you need your guitar to babble, say, faster than you could foot a wah, this is the way to go. Quack, quack!

    (1 of 1 customers found this review helpful)

     
    5.0

    Mov over aflac this box brings the quack

    By amongmen

    from nowheresville, KS

    About Me Experienced

    Verified Buyer

    Pros

    • It's Got What I Crave
    • Quacky

    Cons

      Best Uses

        Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

        Looking for that Jerry sound: http://vocaroo.com/i/s0CvgelzifJZ

         
        1.0

        This is the most erratic piece of pedal Ive ever owned.

        By RedHowell

        from Kansas

        See all my reviews

        Verified Buyer

        Pros

        • Compact Design

        Cons

        • Difficult To Use
        • Poor Sound Quality

        Best Uses

          Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

          I had two of these and both of them go wonky at the worst possible times. Like its suppose to be a filter, and allow the bubbly sound of from the pedal go through your equipment and present this unique sound. Feedback and it overdrives with little on it. Do not buy this product!

           
          3.0

          Get reaDY TO TWEak your whole system.

          By RedHowell

          from Kansas

          About Me Professional Musician

          See all my reviews

          Verified Buyer

          Pros

          • Responsive

          Cons

          • Poor Sound Quality

          Best Uses

            Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

            its a tweaker device for sure. For a auto was its not finger sensitive enough. it feels like it needs to breath more. I like the product, but don't like all that tweaking. Great price, great shipping!

             
            5.0

            Love this pedal!

            By Benjammin

            from IL

            About Me Experienced

            Pros

            • Compact Design
            • Endless Possibilities
            • Excellent Sound Quality
            • Good Selection Of Effects
            • Responsive
            • Versatile

            Cons

              Best Uses

              • Amateur Recording
              • Events
              • Home Studio
              • Performances
              • Professional Recording
              • Wasting An Entire Day

              Comments about Electro-Harmonix XO Q-Tron Envelope Filter Guitar Effects Pedal:

              The Qtron will provide any guitarist or bass player with hours of endless possibilities and fun. I bought it because I wanted to try and duplicate the classic Jerry Garcia whop-quack sound (Shakedown St., Feel Like a Stranger, etc.). This pedal does it! I decided to pull the trigger on this one when I found out that John Kadlecik (Furthur) uses this in his "B-rig". Unless you are a purist, and insist on shelling out for a vintage Mutron-III, the Q-tron is what you want.
              Once I spent a few hours exploring the Q-tron with my guitar, I decided to plug this in to my bass rig. Just when I thought I had tested the limits of this pedal, I found a whole new realm of possibilities with the bass.
              No matter which instrument you play, GET THIS PEDAL! You won't be sorry...

              Displaying reviews 1-7

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