TC Electronic Viscous Vibe Uni-Vibe Pedal

Uni-Vibe-style Guitar Effects Pedal with TonePrint Plus 2 Native Presets, Analog-Dry-Through, and Selectable True-/Buffered-Bypass Switching
5/5 15 Write review Item ID: ViscousVibe
TC Electronic Viscous Vibe Uni-Vibe Pedal image 1
TC Electronic Viscous Vibe Uni-Vibe Pedal image 1
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TC Electronic Viscous Vibe Uni-Vibe Pedal
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Uni-Vibe, Your Way

The original Shin-Ei Uni-Vibe failed spectacularly at emulating a Leslie rotating cabinet, but it did kick off a revolution in guitar effects, and with the TC Electronic Viscous Vibe in your rig, you'll have access to authentic Uni-Vibe modulation styles and a whole lot more. Like the genuine article, the Viscous Vibe lets you call up a chorus-style effect and a straight-up vibrato, with Speed and Intensity controls to dial it in. What's more, TonePrint technology lets you call up custom artist presets or dive in and tweak all of the Viscous Vibes finer parameters tucked away under the hood.

TC Electronic Viscous Vibe Modulation Effects Pedal at a Glance:
  • Digital Uni-Vibe tone like nothing you've heard
  • TonePrint technology lets you craft your effect
  • Digital flexibility meets analog fidelity
Digital Uni-Vibe tone like nothing you've heard

Using the full power of the onboard Freescale DSP engine to model the original circuitry in all its detail, TC Electronic's Viscous Vibe delivers offers you an emulation of a classic Shin-Ei Uni-Vibe that's so spot on, you'll hardly believe it's not analog. One thing that even vintage pedal collectors can appreciate about the Viscous Vibe, however, is the standard stompbox form factor, which sits neatly on your pedalboard. You get both the "vibe" chorus effect and the vibrato effect modes of the original, with speed and Intensity knobs that let you dial in the effect. Cooler still, you can even pull off classic speed-ramp-up effects by pressing and holding the footswitch.

TonePrint technology lets you craft your effect

While a few lucky guitarists can get their hands on an original Uni-Vibe, taking one apart just to tinker with the guts is virtually unheard of. The Viscous Vibe gives you that experience, without the harrowing feeling of ripping apart a priceless antique, thanks to TC Electronic's TonePrint technology. TonePrint lets you tweak all of the hidden parameters behind the Viscous Vibe's unique modulation effects, allowing you to venture into uncharted territories of tone. And if you're looking for inspiration, you can always load up one of the presets made by TC Electronic's cadre of celebrity guitarists.

Digital flexibility meets analog fidelity

DSP may be at the heart of the Viscous Vibe, but it certainly doesn't sound like a digital stompbox. That's because TC Electronic knows how important it is to marry high-quality analog circuitry with their impressive digital processing. For example, the Viscous Vibe's Analog-Dry-Through function ensures that your unaffected signal remains totally untouched, so you won't risk jeopardizing that killer tone you've spent so long perfecting. Also, you may have noticed that the Viscous Vibe's I/O is stereo, which also pretty handy. Finally, TC Electronic gives you the choice between buffered or true bypass, so depending on how many pedals you're running or how you've put your rig together, you'll always have the style of switching you want.

TC Electronic Viscous Vibe Modulation Effects Pedal Features:
  • A fantastic Uni-Vibe modulation pedal clone that offers you a world of unique effects
  • Choose between two classic modes, a shimmering vibe chorus or a timeless vibrato
  • Speed and Intensity controls let you dial in your effect to taste
  • Hold down the footswitch to trigger traditional speed-ramp-up effects
  • Load up custom artist presets for the TonePrint library for access custom Uni-Vibe-inspired sounds
  • TonePrint Editor software for Mac and Windows PCs lets you create your own unique modulation effects
  • Stereo I/O with Analog-Dry-Through provides 2 channels of stunning analog sound
  • Choose from buffered or true bypass via an internal switch
The TC Electronic Viscous Vibe gives you access to a world of Uni-Vibe-style modulation tones!

Additional Media

Pedal Power - Six Vibe Pedals
TC Electronic Helix Phaser and Viscous Vibe Review by Sweetwater

Tech Specs

Inputs 2 x 1/4"
Outputs 2 x 1/4"
Height 2"
Width 2.8"
Depth 4.8"
Manufacturer Part Number 960830001

Customer Reviews

Based on 15 reviews
Write your review

Great pedal!

If you are a fan of Jimi Hendrix, Robin Trower. David Gilmour or other players for their slinky, bluesy, pulsating sound, this is your pedal. You can dial in endless variations, from subtle pulse to all out space age psychedelia. Add to that the Tone Print technology and you have an extremely versatile, great sounding compact 'Vibe pedal.

Direct experience - this is the ringer

Being of the generation who was learning how to play when Hendrix was king, I owned the holy grail trio of Fuzz Face, Crybaby and Uni-Vibe and I kept my Uni-Vibe going until it could no longer be repaired. Since that time I was continually on the lookout for a replacement. There have been many contenders, including those with original photocell operation with bias, and so many more. None of them sounded like the original and, frankly, there are a number of big-name manufacturers that falsely claim to have hit the mark, but they are just too smooth and digital. They don't have that slam that hits at the top and bottom of the cycle. The Viscous does have this and the sound is great. At present, Sweetwater has four videos up on their Viscous page, but the one that does the trick for me – the one without the generation X distance - is the TC Electronic demo. If you have the right rig – one with the grit to produce that grainy, washing sound that we all remember from those sustained bends in Hendrix' Machine Gun (original BOG release) – you can get that sound with this pedal. The extra feature of the gradual speed change is a bonus and can be really useful. I am constantly checking out pedals and with just about everything, I keep coming back to TC. I remember them from the days of large, expensive rack gear and I'm very impressed with what they've done with their pedals. Frankly, I wish they'd come up with a high-end pedalboard with ten of their greatest hits and integrated routing and patching, I'd jump on it – as long as it included the Viscous Vibe. If you want a Uni-Vibe and not just some lounge-act simulation, this is the pedal for you. *And, by the way, the "chorus" setting is not a misnomer. This box was out there long before chorus pedals ever existed. This is the original chorus pedal.
Music background: gigging pro and corporate media production

So versitile!

Love this pedal so much - it's so versitile! Great build quality, sound, and ease of use. Pretty much all I wanted it to be!


I ve had the Vibe Viscous for about a month now and its a great sounding pedal. Considering the price n its made by T.C. Electronics, it easily gets 5 stars.
Music background: Songwriter/guitarist

Fresh & Delicious

It's been a while since I've gotten excited over a modulation pedal, but after hearing this chorus/vibe monster plugged through 2 amps I was sold on it right away. The toneprint patches, which are cool to beam through your phone into the pedal, are a great way to get started with some delicious sounding uni-vibe patchess and some great chorus settings too, but you'll be making your own sounds in no time.
Music background: Musician

Sweetwater Advice

TC Electronic Viscous Vibe

With bridge single-coils and hot humbuckers, it can sound throaty, vowely, heavy, and huge, especially for chords, arpeggios, and slow, liquid solo passages. It can also be a killer companion for an unruly fuzz. My buzzy, hot, and spiky silicon Fuzzrite clone sounded much more substantial, and the fuzz's extra highs helped animate the modulation sweeps....
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See also: TC Electronic, TC Electronic Chorus Pedals