Used DigiTech HM4 Harmony Machine Vocal Processor

Used DigiTech HM4 Harmony Machine Vocal Processor in good condition, built to add rich harmonies and pitch effects to live or studio vocals. Features include programmable harmony intervals, key/scale selection, and multiple effect modes for doubling and thickening. Standard mic input and line output make it easy to integrate with mixers, PA systems, or recording interfaces, with simple front-panel controls for quick adjustments and reliable performance.