Used Mackie Big Knob Studio+ Volume Controller

Used Mackie Big Knob Studio+ Volume Controller in fair condition, offering hands-on control for your studio monitors and headphones. Features 2x2 USB audio interface, two monitor outputs with source selection, built-in talkback mic, and dual headphone amps with independent level control. Includes large master volume knob, mono/mute/dim functions, and flexible routing for quick A/B monitoring. Shows noticeable cosmetic wear and/or functional aging consistent with fair condition but remains a practical monitoring hub.