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T-Rex Engineering Viper Vibe Guitar Pedal

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The Viper Vibe is a great-looking, phenomenal-sounding effect pedal that takes the original swirling vibe sound and gives it an extra bite”with more voltage hurling your guitar's sound around the room... Click To Read More About This Product

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The Viper Vibe is a great-looking, phenomenal-sounding effect pedal that takes the original swirling vibe sound and gives it an extra bite”with more voltage hurling your guitar's sound around the room. Spinning, whirling, shimmering, and pulsating, this box is destined to join T-Rex's other award-winning guitar pedals as a modern classic”delivering sounds from the golden age of rock 'n' roll to the twenty-first century.

Viper gives you a range of cool, modulated 70s sounds all enhanced with a T-Rex bite. You'll recognize the vibe effect at once, and it's easy to dial in everything from "Little Wing" to "Bridge of Sighs."

Turn your world around

Unlike the seventies-sounding phase shifter or the chorus effect of the eighties, the sound of a vibe never goes out of style. It moves in a subtler way ” as classic tracks from Hendrix and generations of his musical descendents bear witness. Use the Viper pedal to make your guitar stand out with a dynamic, vivid sound that will leave audiences calling for more.

Perfect control

Viper gives you just the control you need for the perfect sound on every tune while keeping it simple. The main controls are Depth, Speed and overall Level, while a Mode button takes you from the rotating speaker to a vibrato effect. A trimmer control on the underside of the effect pedal lets you tune the phase and intensity of your vibe. DEPTH controls the overall strength of the vibe effect. Start with a lower setting for a nice, subtle effect, and turn it up to send your sound whirling around the room. The SPEED knob lets you adjust how fast or slow your sound modulates, no matter what the depth, or what mode you're in. LEVEL lets you adjust the overall output of your Viper pedal. Use the MODE button to switch between the two classic vibe modes: a rotating speaker effect and a subtler vibrato sound. The TRIM dial on the back of the unit (accessible using a flat-head screwdriver) lets you shape the intensity and character of your vibe sound. Experiment to get just the vibe you're looking for.


  • Vintage-style vibrato with modern bite
  • DEPTH, SPEED and LEVEL knobs
  • MODE button selects basic character
  • TRIM dial shapes intensity and character
Pro Coverage
T-Rex grants a 2-year warranty against defective parts or workmanship.
In the event of a defect, please contact the nearest T-Rex dealer.

  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 2 reviews)

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Reviewed by 2 customers

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(2 of 2 customers found this review helpful)


The inside skinny on this "Vibe" pedal

By darkhorse

from N Dallas TX

Well, I have to say after waiting on this box for a long time due to the backorders, giving up and then finally getting one in stock I was gravely not happy with it after I hooked it into my board. This is NOT the real PHOTOCELL circuit of the true UNIVIBE/VIBEs I love. This is EXACTLY the same as the tuned phaser used in the Lovepedal Pickle Vibe. Not a bad sound really BUT NOT a true pulse warble of the photocell circuit. If you love the real Vibe tone like I do opt for the photo cell circuit in the Voodoo Lab Micro Vibe for the same bucks or step up to the Fulltone DejaVibe, next is the Retroman Ubervibe or the DLS Versa Vibe or the high end Roger Mayer unit. I feel like I've been ranked on by the Denmark guys. Their tech is OK and this probably sounds a little better than the Lovepedal Pickle I have BUT IT IS NOT A TRUE UNIVIBE CIRCUIT!

(1 of 1 customers found this review helpful)


T-REX Viper Vibe

By paul

from N TX

After running this through the paces some more and trying to find the bext place in the chain for it, I am not so upset about it as I was. True this is not a photocell true vibe circuit, it is a new tech tweaked and tuned phaser effect that mimics the vibe univibe pulse. It is the same as that little Lovepedal Pickle which I also have. I can say, probably due to the three controls, it sounds better than the little Lovepedal. I moved this box everywhere, unlike a Vibe it does not really sound as good as a vibe can in certain places in the chain. I did not like it in the loop and I hated it before an OD or anything gained. I find the best spot is at the end of the chain. I am just not find of the vibe into OD sound no matter who uses them that way. Hendrix used his chain end into driven amp. Trower used to run his after gains in the old days, Fuller started getting everyone to run the Deja-Vibe before OD and gains and I really just do not think the tone is anywhere near as cool. I have the Pickle before ODs just to get that sound but I seldom find it as musical or tonal. The bandwidth is lower, fidelity is low, and the warble is distorted, it makes the dist bigger but it does not make a great vibe tone. Gets a decent vibe warble and pulse, not bad, I would have to ponder if the Voodoo Lab unit is better even though it is a photcell circuit. The Viper is different and it is not bad so do not get the idea I am rejecting the pedal it does have a unique sound and at the end of the chain after ODs or into a warm or about to break up tube channel it sounds very much like a traditional Vibe.

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