Used Mackie Big Knob Passive Volume Controller

Take command of your monitoring with this used Mackie Big Knob Passive in good condition, delivering clean, transparent level control with no power required. Its passive design provides smooth volume adjustment, quick monitor and source selection, and a dedicated mono switch for reliable mix translation. Built for studio desktops, it features balanced XLR and 1/4-inch TRS connections for pro interfaces and monitors, plus a rugged, hands-on “big knob” feel that makes everyday sessions faster and more precise.