Used Mackie Big Knob Passive Volume Controller

Take command of your monitoring with this used Mackie Big Knob Passive Volume Controller in good condition. Its fully passive design requires no power and preserves your signal path while delivering smooth, tactile master volume control. Features include stereo input and output connectivity via balanced 1/4-inch TRS plus dedicated speaker selection for quick A/B comparisons. Ideal for studios and editing suites, it provides reliable, transparent level control with the classic Big Knob feel.