FLEX! is like RAVE! on steroids. It also features four mic/line faders but it has eight dedicated line faders, each with an A/B source selector, doubling your available stereo line sources. A built-in USB Audio Gizmo brings noise-free computer connectivity to the party. FLEX! also features two output mix buses, two mix-minus outputs with talkback, flexible monitoring, a guest monitor feed with talkback, automatic monitor muting when the mics are open. The console is made from steel and machined aluminum, beautiful and built to last!