MXR Phase 90 vs Univox Uni-Vibe
The MXR Phase 90 and the Univox Uni-Vibe are both pedals. The MXR Phase 90 leans fuzzy and warm. The Univox Uni-Vibe leans modulated.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.34% — somewhat different
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Genres both listings are associated with.- Rock
- Classic Rock
- Blues
MXR Phase 90
MXR · pedal
Univox Uni-Vibe
Univox · pedal
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$89.99via Reverb
The MXR Phase 90 is one of the most iconic phaser pedals ever made, a single-knob, four-stage analog phaser known for its warm, organic, liquid sweep. With just a Speed control, it is effortless to use, producing everything from a slow, gentle swirl to a fast, watery throb that animates both rhythm and lead playing. Its rich, musical phasing has appeared on countless recordings across classic rock, funk, and beyond, and it is famously associated with Eddie Van Halen's early tone. The compact orange enclosure and simple operation make it a pedalboard staple. It sits early in the chain into clean or driven amps, adding three-dimensional movement without thinning the core guitar tone.
The Univox Uni-Vibe is the legendary late-1960s modulation effect that created a throbbing, hypnotic, lo-fi swirl unlike any other, attempting to emulate a rotating Leslie speaker but becoming an iconic sound unto itself. Built on a photocell-and-lamp circuit, it is neither true chorus nor true phaser but a phaser-meets-chorus voice with a swooshing, watery, psychedelic pulse. In Chorus mode the modulated and dry signals combine for a swirling spatial effect, while Vibrato mode passes only the modulated signal for a cyclic pitch shift, with Speed and Intensity controls setting the rate and depth of the throb. Famously the final pedal in Jimi Hendrix rig, heard most dramatically on his Woodstock Star-Spangled Banner, and central to David Gilmour tones, it suits psychedelic, classic rock, and blues players chasing rich, hazy, rotating modulation textures.
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Genres this gear is documented as being used in.- Alternative Rock
- Funk
- fuzzy
- warm
- analog warmth
- modulated