Crest Audio Century VX Instruction manual

Multi-Input Module
Technical Data Sheet
CENTURY SERIES
Vx
ON
16 16
88
–O +
7
8
9
5
2
0
1
3
46
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
Ø
HPF
EQ IN
0
-15 +6
40
20
80 150
300
400
INSERT
1
2
3
4
5
6
7
2
1K
512
18
20K
16 16
88
–O +
HF
100
40
300 500
6
1K
600
300
1K5 4
5
8KMID
LF
16 16
88
–O +
MIX
TRIM
MULTI-INPUT
A
U
X
S
E
N
D
S
U
S
H
O
N
-
O
F
F
P
GAIN
+48V
L PFL R
L•ONLY•R
SIG
ON
MIC
PAD 40
30
20
50
70
L
R
MONO
GAIN
+48V
L PFL R
L•ONLY•R
SIG
MIC
PAD 40
30
20
50
70
L
R
MONO
GAIN
+48V
L PFL R
L•ONLY•R
SIG
MIC
PAD 40
30
20
50
70
L
R
MONO
A
B
C
ON
ON MUTE
SOLO
SAFE
7
8
9
2
0
1
3
46
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
7
8
9
5
2
0
1
346
10
PK
SIG
STEREO
M
L
R
1
3
5
7
5
6
7
8
L
R
PK
SIG
STR REV
MONO
2
4
6
8
L
C
R
S
U
M
10
0
5
10
20
30
15
40
60
IMG
WID
E
N
D
S
U
S
H
O
N
-
O
F
F
P
LR
BAL
LCR
BAL
L PFL R
L•ONLY•R
SIG
20 70
R
MONO
GAIN
+48V
L PFL R
L•ONLY•R
SIG
MIC
PAD 40
30
20
50
70
L
R
MONO
V
C
A
G
R
U
P
S
1
-
8
O
VCA
M
U
T
G
R
U
P
S
A
-
D
O
E
D
ON
Product Information
The Multi-Input Module, (MIM) is an optional two-module-width,
‘mixer within a mixer’ input strip for use in the Century Series Vx
mixing console. It replaces two consecutive mono or stereo input
modules at any location within the console. The MIM provides eight
independent inputs which can be configured in any combination of
mono or stereo.Any pair can be set up to accept mic or line level sig-
nals. The MIM is used in situations requiring a large number of
inputs to be mixed in a small physical space. Applications include
choir/orchestral miking, pre-recorded stereo sources and/or effects
returns. A fully loaded, 52 input position Vx console configured
exclusively with MIM modules can accommodate 208 mic or line
level inputs.
Each independent input has separate input gain control, PFL switch,
and Peak/Signal Present LED indicator. Each of the four pairs of
inputs utilize common Mic/Line, Pad, 48V Phantom Power and
On/Off switches. Each pair can be configured for mono or stereo
operation. The aforementioned inputs feeds the common Multi
Master section located on the right side of the MIM. The Multi
Master section is similar to a regularVx Stereo Input module, except
that the Input Gain pot and switches are replaced by a mix trim
stereo level control.
Panel controls (each of four identical inputs)
MIC input selector
Selects mic level sensitivity for both L & R Input XLRs.
The default (with the switch released) is Line Input sensitivity.
+48V phantom power ON-OFF switch
Supplies +48V to the input XLRs.
Active only when MIC sensitivity is selected.
PAD switch
Inserts 15dB of attenuation between the XLRs and the preamp.
Active in both mic and line positions.
GAIN dual-concentric control pair
Gain control for the dual preamp.
ON-OFF switch with indicator
For the preamp output to the stereo sub-mix.
Feeds preamp output to the stereo sub-mix.
L & R assign switches
Assigns preamp output to the module stereo sub-mix.
For normal Stereo output release both switches. Use either L or R
alone to send one side of the input to both sides of the mix. Select
both switches for a mono mix of both inputs to the stereo mix.
SIGNAL indicators
L & R audio, bi-color indication:
normal level = green; overload = red.
PFL switches with indicators
For the individual L & R inputs.

Rear panel connections
Insrt Snd (Left/Right)
This balanced 1/4" TRS jack allows for the combined Left and Right multiple input
module output signals to be sent to effects or signal processors.
Insrt Rtrn (Left/Right)
This balanced 1/4" TRS jack allows for the return of the effected and/or processed
signal back into the multiple input module.
Bal Input (L/R) A, B, C, D
These balanced XLR connectors accept input signals for the A, B, C, and D stereo
inputs of the multiple input module.
Block Diagram
INSRT SND
LEFT
INSRT RTN
LEFT
INSRT SND
RIGHT
INSRT RTN
RIGHT
VX MULT INPUT
BAL INPUT
L
C
R
BAL INPUT
L
B
R
BAL INPUT
L
D
R
L
A
R
BAL INPUT
Multi-Input Module
Technical Data Sheet
CENTURY SERIES
Vx
Crest Audio reserves the right to make changes or improvements in manufacturing or design which may affect specifications. D6000008 11/19/97 v. 1.1
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
TEL : [phone] FAX : [phone]
http://www.crestaudio.com
Printed in USA
*D6000008*
SIG/PEAK
R
SIG/PEAK
L
MIC PAD GAIN
+48V XFRMR
OPTION
INPUT “A” ONLY
L
R
STEREO
L ONLY
R ONLY
MONO
INPUT SELECT
PFL L
PFL R
ON
INPUT MIX
L&R
BALANCED DUAL/STEREO INPUTA
TRIM HPF
20 - 400 HZ
-15 TO
+6DB
8 AUX
SENDS
INSERT
LEFT
SEND
RETURN
Ø
3-BAND EQ
1-20K 300-8K 40-1K
INSERT EQ IN
∑
∑
GLOBAL
PRE
L
R
POST
L
R
PRE
∑
∑
VCA
RIGHT CHANNEL
VCA GROUP
ASSIGN
1 THRU 8
FADER MUTE GROUP
ASSIGN
ATHRU D
MUTE
SAFE
MUTE SOLO BAL
WIDTH
LCR
ASSIGN
-
BUS
ASSIGN
GROUPS
1-8
PEAK
SIG
LEFT CHANNEL DETAIL SHOWN
(COMMON FRONT PANEL CONTROLS)
2-WIDE
MODULE
LEFT HAND
SIDE
RIGHT HAND
SIDE
STEREO
(7 & 8 ONLY)
CREST
Vx MULTI-INPUT MODULE
CONSOLES
D
FOUR PAIRS OF XLR INPUTS
SWITCHABLE LINE OR MIC LEVEL
WITH INDEPENDENT GAIN AND
INPUT SELECTION FOR EACH
∑
ƒ ±ƒ ±ƒ ±
BALANCED DUAL/STEREO INPUT B
BALANCED DUAL/STEREO INPUT C
BALANCED DUAL/STEREO INPUT D