Used Great River MP-500NV Rack Equipment

Used Great River MP-500NV in excellent condition— a classic 500-series mic preamp inspired by vintage NV tone with modern reliability. Delivers rich, punchy gain with a front-panel DI for bass or guitar, plus selectable input impedance and loading for flexible color. Features stepped input gain with output level control for easy drive and trim, and supports standard 500-series rack power and I/O for seamless studio integration.