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SP / TC / GT
PAGE 8
CENTURY SERIES
SP Input Module
The SP input module is the most straightforward of the
Century Series. While it shares many features with more
complex input modules, the SP input module is simple in
design and operation.
LINE Switch
Selects between the Balanced XLR Microphone Input con-
nector and the Balanced Line Input 1/4" TRS connector.
48V Phantom Power Switch
Turns on 48V Phantom Power, required by certain micro-
phones for proper operation.
PAD Switch
Introduces a -15 dB attenuation to the mic input signal.
GAIN Control
Adjusts input gain for proper signal level.
80Hz High Pass Switch
Reduces all low frequency content at a 12db per octave rate
referenced to 80Hz (-3db point).
Four Band Fixed Equalizer
Controls the cut or gain of four fixed frequencies (10 kHz,
2.7kHz, 300Hz, 80Hz) within the input signal only when the
EQ IN switch is depressed.
EQ IN Switch
Inserts the EQ section into the input channel signal. An asso-
ciated LED illuminates when the switch is down.
AUX Level 1•3 / 2•4
Adjusts audio level of a mix for use as a monitor or an effect
send. The signal source for this mix may be selected pre or
post fader by an associated switch.
AUX ASSIGNMENT 3•4 Switch
Selects the first two Aux level controls between the Aux 1•3
mix bus and the Aux 2•4 mix bus.
POST/PRE Switch
Selects the Aux 1•3 and Aux 2•4 signal sources between post
and pre fader positions.
AUX 5 - 8 Individual Level Controls
Adjusts audio level of a mix for use as a monitor or an effect
send. The signal source for these mixes may be selected pre
or post fader by an associated switch.
PRE/POST Switch
Selects the Aux 5 through 8 signal sources between pre and
post fader positions.
PAN CONTROL
Positions the channel image between the left (odd) and right
(even) channel assignment.
MUTE Switch with LED
Mutes the channel and all send functions. This switch does
not affect the PFL switch or the Peak and Signal Present LED
indicators, The LED illuminates when the channel is muted
from the local mute switch.
+48V
LINE
80
EQ IN
POST
3•4
PRE
5
6
7
8
PAN
AUXSENDS
PAD
1•3
2•4
GAIN
20
10
6
30
60
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
8
16
-0+
8
16
LF
8
16
-0+
8
16
LM
8
16
-0+
8
16
HF
8
16
-0+
8
16
HM
POST
3•4
PRE
MUTE
MONO
1-2
3-4
5-6
7-8
PFL
PEAK
SIG
5
6
7
8
PAN
AUXSENDS
0
5
10
30
40
20
L-R
1•3
2•4
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
3
46
10
1