Remote control of up to twelve inputs and eight outputs. Connecting to D-984VC VCA control module permits volume adjustment of all the channels and contact controls of the D-901 mixer. Convenient for color coding to distinguish channels to which stereo link or group settings are assigned. Adjust the volume of connected input equipment, such as a microphone and CD player. Knob position 0 reduces the volume to its lowest setting and position 10 increases the volume to its highest setting. Used to recall preset memories or perform contact controls. These keys light when the preset memory is recalled or the contact turns on.