Used Mackie Big Knob Studio Volume Controller

Used Mackie Big Knob Studio in good condition, offering professional-level monitor switching and volume control for home or project studios. Features include a built-in 2x2 USB interface, two input sources, two studio monitor outputs, and integrated talkback for seamless communication. Designed for precise level control with the large central knob, it supports high-quality audio routing and streamlined workflow. Ideal for musicians, producers, and engineers looking for reliable, hands-on monitor management.