Yamaha DM7 Control - Expansion Controller for DM7 Series MixersThe DM7 Control is an expansion controller with a variety of physical control devices that can be used to conveniently control functions for a number of applications, such as User Defined Keys, Scene Memory keys, Monitor Control keys and knobs, and Panner joystick. The Broadcast Theatre Package is included with the DM7 Control controller. Side pads not included. Features: Faders: 2 User Defined Keys: 16 User Defined Knobs: 4 Scene Memory Keys: Update,