User manual

(5.0E) 5-5
P1200A
INPUT LINK
INPUT A
INPUT LINK
MONO OUT
INPUT B
OUT CHANNEL A
OUT CHANNEL B
C7-TOP
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
HFA
C7-TOP
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
HFA
C6 / C6
CONTROLLER
C6
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
MON
160Hz
C6
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
MON
160Hz
P1200A
INPUT LINK
INPUT A
INPUT LINK
MONO OUT
INPUT B
OUT CHANNEL A
OUT CHANNEL B
C7-TOP
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
HFA
C7-TOP
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
HFA
AMP-L / C7-SUB
CONTROLLER
C7-SUB
100Hz
GRISP
MUTE
OVL
-12 dB
-6
+6
0
AMP-L
CUT
GRISP
MUTE
OVL
-12 dB
-6
+6
0
INPUT SIGNAL L
INPUT SIGNAL R
INPUT A
INPUT B
LINK
d&b MC4
d&b MC4
OUT CHANNEL A OUT CHANNEL B
MONO OUT
OUT CHANNEL A
OUT CHANNEL B
d&b MC4
C7-SUB
MAX MAX
C7-SUB
C6C6
IMPORTANT!
5.3. Using the P1200A MONO OUT
In a P1200A, the two input signals of INPUT A and INPUT B are
combined, electronically balanced and buffered. This signal is then
routed to the rear panel MONO OUT connector.
The MONO OUT signal is generated on the mainframe input
board. Therefore the signal is completely independent of the
controller configuration of the mainframe (stereo, mono or mixed).
The MONO OUT is normally used to provide a mono signal for
additional systems like subwoofers, near fills, delay speakers or
monitors when the main system is driven with left and right signal.
For these applications the main system must include at least one
mainframe in stereo configuration to generate the mono signal.
The signal level at the MONO OUT connector is -3 dB the sum of
the mainframe controller module inputs. The 3 dB signal
attenuation prevents feedback if the signal routing is incorrect (e.g.
if the MONO OUT is routed to a module signal input in the same
mainframe).
Note that because of its attenuation the MONO OUT should not
be used as a signal buffer to feed subsequent mainframes (e.g. of
the same PA channel). All devices connected after the MONO OUT
will have 3 dB less input signal.
In the following configuration example two C6 cabinets are used as
a front of house system. The MONO OUT signal from the C6
system mainframe is fed to both inputs of a second mainframe. This
second mainframe is fitted with one C7-SUB controller and one
AMP-L module. Connected to the outputs of the second mainframe
are two C7 subwoofers and two MAX cabinets used as stage
monitors.