Tabletop level control/monitor switcher/source selector & talkback box. Big, convenient volume knob for precise level adjustments. Switches among 3 sets of studio monitors. Built-in talkback microphone eases communication with musicians. Monitor 4 independent stereo inputs including one for your DAW Mix. Dual headphone outputs with independent volume controls and headphone mix bus. Phono preamp for direct turntable connection. High-end studio sound quality and robust construction. Perfect for computer-based studios.