Input/Output Module
The input/output module bears a strong resemblance to the
SL4000G module, but with a number of enhancements.
The differences are briefly as follows:
The channel input stage is similar to G Series. The MIC gain is a
continuously variable control (from +15dB to +75dB) with a 20dB
pad switch. The Mic input can also be switched to high impedance
using the HIGH-Z switch, allowing the Mic input to be used for line
level signals.
The Multitrack BUS trim control, which on SL4000/6000/8000 Series
consoles is adjacent to the Group/Tape switches near the bottom of
the module, is also located in this area.
The SL 9000 J Series Dynamics section is based on the classic G Series
circuits, with the addition of a Peak detect option on the Compressor
(selected by pulling the RATIO switch up) and a HOLD control for
the Gate. The Expander/Gate section defaults to Gate, with Expand
selected by pulling the HOLD control. As with G Series, the
Dynamics section can be keyed from the Monitor path by selecting
MON and either CH IN or CH OUT. It can also be keyed from the
Insert Return by selecting KEY and IN for the channel insert point.
The Equaliser is a four band parametric, with variable Q on the mid
bands and shelving/bell high and low bands. The normal curves of
the equaliser are based on the G Series equaliser. The mid bands are
constant Q, so the bandwidth increases as the gain is decreased. LF
and HF BELL switches are provided as opposed to the LMF and
HMF range shift switches found on G Series EQ.
The E switch selects an alternative set of EQ characteristics, based on
the classic ‘242’ E Series card. The mid bands have a constant
bandwidth, so Q increases as gain is increased; the HF band has a
shallower slope than in ‘normal’ mode. The bell curves are identical
to the normal ones, ie. without E selected.
The Equaliser can be switched to the Monitor path using the MON
switch. SPLT places the filters at the channel input, just as in G
Series.
The EQ IN switch is automated.
Console Overview
1-3
22.12.94
FLIP
Ø
BELL
BELL
IN
MON
E
HIGH-Z
CH
IN
CH
OUT
MON
DYN SC
SPLT
- 20dB
LINK
SUB GP
IN
EFX
LR
KHz
dB
HMF
dB
Q
KHz
LMF
dB
Q
KHz
LF
dB
Hz
OVERLOAD
AUXES
CUE ST
+
+
0
1 5 16
6 7
+
2 2 5
0
+
0
30 450
RATIO
LINE
dB
BUS
dB
dB
MIC
20
14
10
6
3
DYNAMICS
PK
Pull
THRESHOLD
RELEASE
THRESHOLD
RANGE
RELEASE
HOLD
Pull for fast attack
Pull for fast attack
Pull for EXP
-30 0
20 +20
+15 +75
1
0
0
0
+10 20
14
0 40
30 +10
0
14
04
0
KHz
FILTERS
Hz
HF
OUT
350
3
OUT
GROUP
FADER
INSERT
KEY
PRE
0
EFX EFX
ODD EV
48V
EQ
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