SUM INPUT TO MAIN BUS
The "SUM I/P TO MAIN connections on the rear panel are a simple pair of unity gain, stereo, buffered line input connections that
sum directly onto the Main Left and Right buses. Typically these might be used to cascade the mix bus signals from another sub-
mix console onto the BiG SiX Main bus, such as an SSL SiX console as illustrated below.
Main Mix Bus Block Diagram showing 'Sum I/P to Main' connection on left hand side.
MAIN
MIX
BUS B
AFL
L R
L R
L
R
L
R
L
SUM IP
TO MAIN
R
EXT 1
FROM
EXT 1
EXT 2
FROM
EXT 2
BiG SiX User Guide
V
B
S
B
o
D
N
A
x
R
S
S
1
MAIN MIX
OUTPUT
V
B
B
S
o
D
N
A
x
R
S
S
1
SEND
+
-
SEND
+
-
MAIN MONITORS
ALTERNATIVE MONITORS
G
K
B
D
T
E
K
SUM I/P
R
R
Y
G
U
TO MAIN
M
S
S
V
X
S
PHONES 1
SEND
MIX
EQ
RETURN
G
K
B
M
D
T
E
K
I
R
R
Y
G
X
U
S
S
V
M
S
X
BUS COMP to
∑ ST CUE 1
G SERIES BUS COMP
T/HOLD
MAKE UP
AUTO
INSERT
RLS
RETURN
+
VCA
-
VCA
S/C
RETURN
+
VCA
-
VCA
S/C
FROM
ST CUE 1
LEVEL
MUTE
to +10dB
BUS B
TO MON
Console Overview
WORKSTATION
USB
16 AUDIO OUT
PHONES 2
DAW CONTROLLER
IN
MAIN BUS
USB
SEND
13/14
+
L
-
BUS B
OUT
+
R
-
DIGITAL
AUDIO
USB
1
6
A
U
D
I
O
I
N
USB
SEND
15/16
+
L
-
MAIN
OUT
+
R
-
TO MON
17
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Questions and answers
How should I hookup my headphone amp to an SSL Big Six?