Hardware manual

NexSys v. 3.0 Crest Audio Inc.

A red group mute LED indicates that all channels within that group are muted. A yellow

LED indicates that some channels within the group are muted. A gray or dimmed LED indi-

cates that no channel in the group is muted.

9.4 Control Hierarchy

A single ampliﬁer channel may be con-

trolled from different points within

NexSys. Double clicking on the channel's

name within the inventory window will

open its control panel. This control panel is

the most direct way to control a channel

but there are other ways as well.

In the least complicated scenario, channel

"alpha" is part of the Plan inventory and no

groups have yet been deﬁned. There are

two methods to change alpha's gain

(excluding snapshots): 1) directly via its

control panel, and 2) relatively, by moving

the Plan fader. The relative gain changes,

positive or negative, made at the Plan fader

will be added to or subtracted from the

alpha channel's current gain.

Control Hierarchy Examples

Now assume that alpha is also in a group named “Group 1.” The group fader is another way

of changing alpha's gain. It operates in the same manner as the Plan fader. What is impor-

tant to note is that the Plan fader has no effect on the group fader. They are at the same level

of control hierarchy.

The following two diagrams depict even more complicated scenarios (though ones quite

likely to occur in a real system). The ﬁrst diagram shows that there are three channels in the

Plan, "alpha," "beta" and "gamma" and two groups, "group 1" and "group 2." Group 1 con-

tains channels alpha and gamma. Group 2 contains beta and gamma. The second diagram

shows the controls for each channel as well as the group and Plan faders. The group con-

trols and the Plan control do not affect each other but do affect the channels.

Page 9.4 Software Manual