22 – DX810
3. Combining only affects crosspoints and outputs
that are assigned to control groups (see rule 1).
Any crosspoint or output that is part of a
combination, but is not assigned to a control
group, will be muted when the combination is
inactive, and audible when the combination is
active.
4. Multiple combinations can be activated at the
same time.
5. Outputs that are not assigned to any combinations
are not affected by these rules.
This means that:
• Control groups controlling the outputs to the
combined rooms will be linked together. All these
control groups will have the same level. The actual
output level of each output is the basic level adjusted
by this group level. Any of the controls that previously
controlled the group level for each output can now
adjust the level to all the combined outputs. Mute/
enable controls for these groups are also linked.
• Groups that previously controlled the relative level
of a single source input to each room will now be
linked together to control the relative level of that
input to all combined rooms. All the groups for the
same input will always have the same level. The
actual relative level of the input to each combined
output is the basic level to each room adjusted by
this group level. Any of the controls that previously
controlled the group for the relative level for an
input can now adjust the relative level of this input
to the combined outputs. Mute/enable controls for
these groups are also linked.
• Combining also works with crossover outputs. In
this case, as with crosspoints, the crossover looks
like a single output for mixing/combining.
Now let’s look at an example to see how the
rules apply in a practical application.
A Three Room Combination
In this example, Outputs A, B, and C provide
separate mixes for three rooms, which are
separated by dividing walls that can be folded back
to create one large room.
Initial Setup
1. A microphone from Room A is connected to
Input 1, a microphone from Room B is connected to
Input 2, and a microphone from Room C is
connected to Input 3.
2. Input 1 is routed to Output A (Room A) via
crosspoint 1A.
3. Input 2 is routed to Output B (Room B) via
crosspoint 2B.
4. Input 3 is routed to Output C (Room C) via
crosspoint 3C.
So far we have one mic in each room that is
routed to its room only. Now set the inputs and
outputs to nominal levels appropriate for the gain
structure of the system.
Secondary Setup for Room Combining
We want to be able to fold the walls back and
combine rooms A and B, rooms B and C, or
combine all three rooms into one large room. We
will create two combinations: C1 will combine rooms
A and B, and C2 will combine rooms B and C. To
combine all three rooms, activate both C1 and C2.
5. Assign each output A, B, and C to its own control
group. Let’s use groups 1, 2, and 3.
6. Assign each crosspoint to its own control group.
For this example, let’s use the following:
Crosspoint Group
1A 4
2B 5
3C 6
Tip: Don’t forget to deselect the group select
button when you are finished assigning the outputs
and crosspoints to the groups! You can click the
Group button to verify that you have assigned the
outputs and crosspoints correctly.
7. Set the group levels to a nominal level (or unity
gain).
Now we have assigned each crosspoint and
output to a control group, to satisfy one of the
combine rules (rule number 1).
Next we will add the inputs that we want to appear
at each output when each combination is active.
8. Select Output A and adjust crosspoints 2A and
3A so they can be heard in Output A. This puts
Room B and Room C mics into Room A output.
9. Select Output B and adjust crosspoints 1B and
3B so they can be heard in Output B. This puts
Room A and Room C mics into Room B output.
10. Select Output C and adjust crosspoints 1C and
2C so they can be heard in Output C. This puts
Room A and Room B mics into Room C output.
Notice that we haven’t assigned these crosspoints
to groups. This ensures that the extra inputs added to
each output will only be heard when the combination
is active (rule number 3). Note that the added inputs
can be heard in all the outputs until the combination