JAM Pedals RetroVibe mk.2 vs JAM Pedals RetroVibe Mk.4
The JAM Pedals RetroVibe mk.2 and the JAM Pedals RetroVibe Mk.4 are both pedals sharing modulated. The JAM Pedals RetroVibe Mk.4 leans mid-forward and lush.
cited
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.43% — somewhat different
cited
Derived from overlapping tonal signals across both listings.- modulated
cited
Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.The JAM Pedals RetroVibe mk.2 is a vibrato/chorus pedal emulating the classic Uni-Vibe circuit, built with photocells, a bulb, original NOS 2SC828 transistors, and carbon-comp resistors for period-accurate warmth, housed in a modern, pedalboard-friendly enclosure. It runs on standard 9V DC power internally lifted to 15V DC, drawing 80mA, and represents the original version in JAM's RetroVibe lineage, before the mk.3 added switching and expression-pedal refinements and the mk.4's ground-up control-range redesign.
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.
cited
Genres this gear is documented as being used in.- Blues Rock
- Classic Rock
- Ambient
- mid-forward
- lush
- smooth
- shimmer
- dynamic