Used Mackie Big Knob Passive Volume Controller

Used Mackie Big Knob Passive Volume Controller in good condition, perfect for precise monitor level control without adding coloration. This fully passive unit requires no power and delivers smooth, reliable attenuation for studio or desktop setups. Features a large “Big Knob” master volume control, multiple stereo input and monitor source selection, and high-quality analog signal routing for easy A/B monitoring. A simple, rugged solution for cleaner workflow and confident listening.