Enhance your studio workflow with this used Mackie Big Knob Studio+ Monitor Controller and Interface, in great condition and fully functional. Designed for professional audio production, it features a built-in USB interface with 24-bit/192kHz audio quality, support for up to three studio monitors and four sources, and two Onyx mic preamps with phantom power. Easily switch between sources and monitor setups, control volume with precision, and use the built-in talkback mic for seamless communication. Ideal for recording, mixing, or podcasting, this versatile desktop controller offers the convenience and performance that Mackie is known for. Includes power supply.