Media control 4-channel mic/line audio mixer in a two gang electrical box. A two gang electrical box four channel Audio mixer, the MC4 will allow either Line or Mic level inputs on each channel. It has an additional four set of level controls to provide a fixed secondary output not effected by any of the changes on the front panel level input controls. Typical uses of the secondary output would be “Hard of hearing”, “Room combiner” or priority feed that is not effected by input controls. All inputs and outputs are balanced so that, if needed, very long input lines and output lines are possible.