Dunlop Uni-Vibe UV-1 Chorus vs JAM Pedals RetroVibe Mk.4
The Dunlop Uni-Vibe UV-1 Chorus and the JAM Pedals RetroVibe Mk.4 are both pedals sharing smooth, modulated. The JAM Pedals RetroVibe Mk.4 leans lush and shimmer. Current prices: $509.82 vs $469.
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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.52% — moderately similar
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Genres both listings are associated with.- Classic Rock
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Derived from overlapping tonal signals across both listings.- smooth
- modulated
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$509.82via Reverb
$469via Reverb
The Dunlop Uni-Vibe UV-1 is a reissue of the classic Shin-ei Uni-Vibe optical chorus and vibrato effect, famous for its use by Jimi Hendrix at Woodstock and by Robin Trower throughout his recordings. The UV-1 replicates the original four-stage optical phaser with LFO and photocell circuit for the characteristic liquid, watery chorus sweep. Includes expression pedal input for real-time speed control. Controls include Speed, Intensity, and Chorus/Vibrato mode switch.
The JAM Pedals RetroVibe Mk.4 is a hand-built uni-vibe widely regarded as one of the finest modern interpretations of the classic effect. It recreates the original sound-generation method of four photocells surrounding a pulsating light source, producing a lush, vocal, wavering swirl with the elusive complex midrange that responds beautifully to pick attack. A switch selects between Vibrato and Chorus voicings, covering everything from slow liquid throb to fast Leslie-style rotary effects, while an internal trimmer reshapes the maximum intensity and character. Used by players such as J Mascis, Andy Timmons, Ruban Nielson and Greg Koch, it suits psychedelic, classic-rock and ambient textures and is considered a gold-standard authentic sixties-style vibe.
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Genres this gear is documented as being used in.- Rock
- Blues
- Ambient
- lush
- shimmer
- pristine