Strymon UltraViolet Effects Pedal

A warm grittiness to the warble, a rippling, wooshing, bubbling irregularity to the modulation and a dynamic response to your picking are all hallmarks of the true vibe experience.

Thicker and chewier than any chorus, earthier than any phaser and uniquely magical in front of a driven amp, the perfect vibe pedal moves you to dig in and play without inhibition. This feeling has been difficult to find outside of large and expensive fully-analog boutique units, but the search for that elusive experience is now over.

Delivering vintage vibe tone that’s second to none with simple and powerful controls for instantly obtaining a rich variety of captivating sounds, UltraViolet is the vibe pedal you’ve been looking for. Strymon UltraViolet’s simple and responsive controls provide a wider range of sounds than traditional vibe pedals.

In addition to the familiar Chorus (50% wet) and Vibrato (100% wet) settings, there is a new Blend setting (30% wet) for an inspiring variety of more subtle effects. A Bias switch gives you three distinct flavors of sweep shape and tone emphasis, allowing for tons of sonic variation.

At slow speeds, the intensity range has been expanded beyond that of traditional vibe circuits to push even further into warmly undulating sonic territory. UltraViolet gives you all the classic vibe tones—and more. For UltraViolet’s new vibe algorithm, all the elements of the classic optical vibe circuit (and their interdependencies) have been meticulously recreated for a dynamic playing response. From the effects of bias, speed and LFO waveshape on the pulsing of the lamp, to the response of the light-dependent resistors that set the center frequencies of the staggered phasing filters, the entire system has been duplicated and carefully tuned to produce the very best sounds a vibe pedal can offer.

TRS stereo input and output in a dual mono configuration means you can place UltraViolet at any point in your pedal chain with no impact on your stereo image. Full MIDI implementation with 300 available preset locations ensures that UltraViolet is ready for your MIDI rig.

In addition to TRS MIDI, there is a USB-C jack for controlling the pedal via MIDI from a computer or for performing firmware updates. For hands-free control without MIDI you can connect an expression pedal for control over any combination of knobs in any direction (Expression pedal controls Speed by default.) Or attach an optional external switch for tap tempo or favorite recall.

Finally, a high-impedance, ultra-low noise discrete Class A JFET stereo input preamp provides exceptional touch sensitivity, dynamics and feel—all in a rugged and elegantly compact form factor.

Please note from 1st August 2025 all Strymon effects pedals will no longer include a power supply.