Used Mackie Big Knob Passive Volume Controller

Used Mackie Big Knob Passive Volume Controller in good condition. This desktop monitor controller features passive circuitry for ultra-clean sound, a large volume knob for precise level control, and two stereo input and output sources. Perfect for switching between audio sources and monitors without coloring your sound. No power required—just pure, transparent signal path. Ideal for home studios or professional setups looking for reliable volume management with simple functionality and rugged build quality.