Pigtronix Quantum Time Modulator Review – Best Chorus/Vibrato Pedal?

Reviewed by:
On August 20, 2013
Last modified:October 6, 2016


Pigtronix-Quantum-Time-Modulator-Review-Best-Chorus-Vibrato-Pedal-01The Quantum Time Modulator is yet another example of the kind of stompbox that could only come from Pigtronix, the makers of such eclectic devices as the Philosopher’s Tone compressor and Mothership Analog Guitar Synthesizer pedals. The Quantum Time Modulator seeks to emulate the sounds of such classic rack units as the MicMix DynaFlanger, TC 1210 Spatial Expander, and Roland Dimension D while forging ahead into new sonic territory. Is this the best chorus/vibrato pedal in the known universe? Keep reading our Pigtronix Quantum Time Modulator review for a lesson in quantum theory.

The Quantum Time Modulator differs from traditional chorus and vibrato pedals in that its rate of effect can be controlled by either picking dynamics, LFO, or a combination of both. This means that you can use it like a traditional LFO controlled chorusing effect or control the rate of change by how you attack the strings or adjust the input source. With the Quantum Time Modulator’s dual bucket brigade delay lines, you can even utilized both envelope and LFO sources simultaneously for a chorus / vibe sound only found in this unique offering among Pigtronix guitar pedals.

Let run down the features and dive into the review.


Sensitivity knob controls how hard you have to hit the string in order to produce a modulation voltage from the envelope circuit.

Speed knob controls the rate of the LFO modulation.


Source knob controls which of the two modulation sources (LFO or Envelope) is acting on the bucket brigade delay line.

Chorus/Vibe switch determines if the effect output carries a mixture of clean and modulated audio (Chorus) or just a pure modulated signal (Vibrato).

True bypass for letting your signal passed unaffected when disengaged.

Powered by included 18VDC 300 mA adapter.

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Sound & Performance:

If you’ve heard one chorus, you’ve heard them all, right? Wrong. The Quantum Time Modular shows that there is still plenty of room for innovation in the world of stompbox chorus and vibrato pedals.

I went for a clean amp sound and plugged my American Stratocaster into the Quantum Time Modulator. With the Source knob fully counter-clockwise, I engaged the pedal in the Chorus mode. With moderate Sensitivity levels, you can play softly for a dry sound and play more loudly to add emphasis with the chorusing effect.


This is a very unique effect that you have to experience firsthand. Reading about it or even listening to a sound clip doesn’t do it justice. You really need to play this pedal to feel how the Quantum Time Modulator responds to your playing.

With the Sensitivity rolled all the day down, the chorus stops being affected by the envelope. This allows you to use the Source knob to control depth like on a standard chorus pedal.

The Quantum Time Modulator is just as interesting in the Vibrato mode. You can play a passage with your normal clean tone and then dig in a bit to suddenly detune and warp your sound. The bucket brigade warping offers a unique time displacement effect that you won’t find in any other pedal.

In the Vibe mode, there is further otherworldly bizarreness to be found by turning the Source and Speed knobs all the way to the right for a warbling, horror film sound effect. Thanks to the warmth of the all-analog design, this extreme effect can be surprisingly musical.

With all the knobs set around noon, you can start blending the different modulation sources to taste. I like the gentle whooshing sound of a slower Speed setting around 9 o’clock. With careful listening and Sensitivity adjustment, you can find some really cool, spontaneous, dual-chorusing sounds. The Quantum Time Modulator delivers a kind of controlled, yet chaotic chorusing sound never before heard in a convenient stompbox enclosure.

Despite the Quantum Time Modulator’s ultra-modern F.A.T. (Futuristic Analog Technology) design, this 100% analog pedal is exceptionally well-suited for creating vintage-style effects. With the slightly raised noise floor of the analog circuitry, you can get a really cool warped record or tape sound by using your picking dynamics to detune the sound. Only Pigtronix can fuse the past and future with such great-sounding results. The did it with the Mothership and Philosopher’s Tone, and they’ve done it again with the Quantum Time Modulator.

The Quantum Time Modulator is certainly one of the more unique chorus effects to come along in recent years. Let’s see the final result.



The Pigtronix Quantum Time Modulator is a brilliant throwback to such classic rack units as the MicMix DynaFlanger, TC 1210 Spatial Expander, and Roland Dimension D. Yet this pedal makes its own statement as a truly one-of-a-kind chorus/vibrato stompbox. The Quantum Time Modulator forges ahead with bold dual modulation abilities thanks to its separate LFO and envelope-controlled bucket brigade delay lines. This pedal can even deliver traditional chorus and vibrato sounds as desired. If you’re looking for one of the best chorus/vibrato pedals out there, the Pigtronix Quantum Time Modulator delivers classic and cutting edge modulation you won’t find anywhere else.

That concludes our Pigtronix Quantum Time Modulator review. Thanks for reading.


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  1. Pretty cool to have innovative analog effects in this digital age!

    Just like a lot of players, I love some of the classic effects, but Pigtronix gives you that and some new stuff, too.

  2. omg !! this pedal is so sick !!! if some magical way i manage to win this pedal, not only will i take a picture of it on my board for you, but ill also MAKE my mom bake you guys about 10 pounds of her special cookies and fudge ;)

    oh, ya, to the readers, dont be haters, the same offer goes out to any of you that would like to buy me a pigtronix quantum time modulator ;)


  3. Sounds worth it. I’ve always wanted to play more with chorus and vibrato, they’re interesting on my cube 60 but definitely have their limitations without a switch pedal (and even still, I can’t imagine they have the range of effect explained above). Gotta go test one out.

  4. Pigtronix is a reputable company with a long History of Cutting Edge Effects. The Quantum Time Modulator is destined to join such Greats as their Philosopher’s Tone compressor and Mothership Analog Guitar Synthesizer as THE ONE Stomp Box to have for the Specific sounds I’m Looking for. Good Luck everyone. If you don’t win one BUY One….Great Products!

  5. I love what Pigtronix does with their pedals. Always putting a new spin on old favorites. The DynaFlanger feature alone is enough to get this pedal. Can’t wait to own it!

  6. I first heard this pedal through ProGuitarShop’s youtube demo. Andy’s demo and this review seem to point to this being a really interesting and unique pedal!

  7. I like the Sensitivity knob on the Pigtronix Quantum Time Modulator and I like the strobe tuner part of the Sonic Research Turbo Tuner ST-200 so I guess I have to have them both

  8. Awesome pedal, modulation, delay are some of my favorite pedals, the wetter the better. Analog always seems to be better sounding to my ears.

  9. I have a love hate relationship with chorus. Sometimes I love it sometimes I hate it. I’m curious that it is reactive to your playing. Would defiantly enjoy checking it out.

  10. Ok, I’ve been waiting to hear samples of this pedal since it came out. I’ve never really liked chorus but I like weird swirly warbled pedals and in particular, I love anything that displaces time. Adding bucket Brigade chips to the signal to warp it out more is pure genius.

  11. This sounds like an effect I would really enjoy using, I am in the market for a chorus pedal and definitely plan to add this to the short list of pedals I want to audition

  12. Nice video review, definately made me interested even though I’m usually not a big fan of chrous etc. :) The dual modulation thing sounds cool! :)

  13. Though the Pigtronix Quantum Time Modulator is a new and unique effect for guitarists, to me it is reminiscent of an analog synth module. I see many applications for this effect, because of it’s dual modulation capabilities. Now the 18VDC may be an issue for some powered pedal boards depending upon their power distribution system. Apart from that this appears to be the chorus/vibrato pedal of choice for the discerning and discriminating guitarist. I would like to see how this pedal could be used in other non-traditional applications, which the youth of Musical Directions, which is my youth outreach, are fond of doing ad they do create some interesting things this way. It does look like Pigtronix has added another winner to their catalog.


  14. I can’t wait to get my hand on one of these! I’m all about 2-n-1 pedals, and Pigtronix has always been up there on my list for the crazy out-there sounds I love!

  15. Pigtronix makes some great stuff. A lot of usable, transparent sounding effects in this box. Sounded good with distortion too, which doesn’t always happen with every fx box!

  16. Great review – I couldn’t really tell what this did until I read the review and heard your demo. Other demos out there don’t capture how cool and unique the Quantum Time Modulator is. Thx

  17. Thank you for another class review. The only thing about your reviews are that after reading each one I find myself NEEDING the pedal you just reviewed!

  18. I wasn’t too sure about this pedal after seeing the video so I had to YouTube a few other reviews, and I am actually pretty impressed — It seems like it is quite a versatile chorus pedal.
    From what I heard on other reviews, it sounds especially good with a tube amp, so I’m pretty curious to try it in my rig.
    It looks pretty cool too!


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