Cadac CDC four - Manual (Page 23)

Revision 1 2012-13 CDC FOUR
23
Layers
On an analogue mixer, the necessity for every channel (input or output) to have
its own set of controls and electronic hardware inevitably means that the physical
size of the mixer becomes proportional to the number of channels. An analogue
mixer with many inputs and outputs has a very large “footprint”.
This relationship may be dispensed with in a digital mixer, which allows a small
control surface to control large mixer configurations.
On the CDC FOUR, in 19” of control surface width, sixteen faders can control
up to 48 mic/line and 8 stereo inputs, plus eight Aux sends, eight VCA masters,
two internal FX returns and four output groups. This is achieved by arranging all
these various fader-controlled channels into five* layers. Only one layer at a time
is active; the faders, with their associated MUTE, SOLO and SEL buttons control
the sixteen channels in that layer.
NOTE: The red MASTER fader always controls the main stereo output – it is not
part of any layer.
The active layer is selected by the five LAYER SELECT buttons ([7] on “Top view
- control surface” on page 13).
The first three layers make mic/line inputs 1-16, 17-32 and 33-48 respectively
available to the fader set. The layers corresponding to mic/line inputs 17 and
above will only be operative if the CDC RACK stagebox is connected to the mixer.
The fader assignments for the mic/line input layers are printed on the fader panel
above the faders.
The remaining two layers assign a combination of stereo inputs, VCA masters,
group outputs, Aux sends and FX masters to the fader set. The fader assignments
for these layers are printed on the fader panel below the faders.
* The faders may also be assigned to control the 1/3-octave graphic equaliser available to the main
stereo output; this effectively consitutes two additional layers.
LAYER SELECT
OUTPUTS
ST
CHNS
VCA
CHNS
33 - 48
CHNS
17 - 32
CHNS
1 - 16