JAM Pedals Retrovibe Mk IV

The RetroVibe mk.4 is an all-analog Uni-Vibe-style modulation pedal with lush pulse, vocal shimmer and unmistakable vintage warmth. Expanded Depth and Speed ranges move from slow liquid waves to fast rotary-like spins, while Chorus and Vibrato modes provide two distinct ways to shape the movement.

Tap tempo makes the rate easy to lock in onstage, and the Ramping function glides from the current speed to a second user-defined rate for dramatic transitions. Connect a standard passive 10 kΩ expression pedal for continuous real-time Speed control. The mk.4 preserves the soul of the original RetroVibe while making it far more expressive in performance.