The Mystery FC8X EasyMix (EM) is a tactical remote control surface for the following digital signal processor (DSP) architectures: Biamp Tesira®, Symetrix SymNet®, and QSC Q-Sys®. There are two models. The FC8X with (8) faders and the FC12X with (12) faders. All communication and controls are bidirectional with touch sensitive motorized faders and backlit buttons. A color HD display is located above each fader to display channel names, live meters, and other custom control functions.