The large fader is motorized and incorporates a VCA (Voltage Controlled Amplifier).
It has the following facilities:
- Can be grouped to a 'master' fader so that the master controls all the movements of the slaves.
- Can be automated (other automatable functions include mutes and some other switched functions).
- On the SL 9000 and some other SSL consoles, the 'Ultimation' automation system allows audio to pass through the fader track (so-called 'moving fader' automation), or it can be routed through the VCA ('VCA automation').