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
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').
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