UMI

Description

Vintage vibe with real analog punch: this Used 1960s UMI Tone Booster delivers warm, gritty gain and classic mid-forward clarity that makes guitars jump in the mix. In great condition, it’s a straightforward stompbox with simple controls for dialing in boost and tone, designed for standard instrument-level input and output. Runs on a 9V battery-style power and uses a rugged metal enclosure—perfect for authentic retro drive, edge-of-breakup push, or fattening clean tones.