The RD-8C is a remote fader level control. Control your system from any location with our remote controls. RD-8C is a hard-wired desktop programmable remote fader controller for Ashly amps and processors that have DSP and a serial data connector. RW-8C is the wall-mount version. Using Protea NE Software, each fader is assigned to adjust the level of one or more input or output channels. A master fader controls the overall level of all faders.