Crest Audio | X-RACK XR-24 - | User manual | Crest-XR20_24 mix

Schematic Set
For XR-20 and XR-24
Rack-Mount Mixers
XR-20
12 Mono Inputs • 4 Stereo Inputs
XR-24
8 Mono Inputs • 8 Stereo Inputs
LINE INPUT
LINE INPUT
( MIC PAD )
30 GAIN
40
20
30 GAIN
40
20
50
10
10
0
8
15
2K
1K
5K
400
0
–
HM
+
8
8
15
5K
400
15
HM
+
8
8
15
500
8
5K
15
8
15
500
300
HM
+
8
15
8
0
HM
8
15
500
0
HM
+
8
15
500
5K
15
8
15
500
HM
+
8
15
8
5K
15
8
15
500
HM
8
15
8
0
HM
8
15
500
HM
8
15
500
8
HM
8
15
500
5K
8
15
500
HM
8
FROM
MONITOR
8K
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
8
100
2K
0
–
+
8
LM
3
2
1
8
15
15
8
+
8
LM
8
ADD MONO
TO PHONES
& ALT OUT
SOLO
PWR
TO A1- 2
+
8
LM
8
2K
0
–
+
8
AFL 1- 2
TO L - R
1K
100
2K
0
–
R
500
300
1K
100
2K
0
–
L
10 – AUX
4 5 6 TAPE
15
IN
0 OUT
7
+
5
20
8
9
40
0
10
• 10
HM
+
15
100
TAPE
IN
3K
0
500
300
1K
10
5K
–
9
6
3
0
3
6
9
12
15
18
21
24
SOLO
OFF
15
8
15
0
8
400
+
7
8
9
+ HF
600
8K
15
0
–
15
2K
1K
3K
8
15
300
1K
15
0
–
3
2
1
60
8
5K
500
300
1K
HM
8
15
+ HF
LAMP
4 5 6
SUM
INPUTS
8
400
+
15
600
8K
0
–
0
–
15
2K
1K
3K
400
+
60
8
15
600
8K
8
15
300
1K
3K
0
+ HF
H
O
N
E
S
50
SUM
INPUTS
8
15
2K
1K
5K
–
15
8
15
400
+
60
0
–
40
50
SUM
INPUTS
+ HF
600
8K
8
15
300
1K
3K
0
0
–
15
2K
1K
5K
–
15
8
15
400
+
60
GAIN
30
20
40
50
SUM
INPUTS
+ HF
600
8K
8
15
300
1K
3K
15
8
15
2K
1K
5K
–
0
–
8
15
400
+
70
( MIC PAD )
GAIN
30
20
40
50
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
8
15
300
1K
15
10
( MIC PAD )
GAIN
30
20
40
12V
STR LINE IN P
STR LINE IN
( MIC PAD )
GAIN
30
20
50
70
8
5K
500
300
1K
HM
+
8
8
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
10
STR LINE IN
( MIC PAD )
50
70
8
15
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
8
15
300
1K
15
10
STR LINE IN
( MIC PAD )
50
70
8
5K
500
300
1K
HM
+
8
8
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
10
LINE INPUT
( MIC PAD )
50
70
8
15
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
8
15
300
1K
3K
10
8
15
2K
1K
5K
–
0
–
8
15
400
+
70
LINE INPUT
( MIC PAD )
50
LO CUT
+ HF
600
8K
8
15
300
1K
3K
10
8
15
2K
1K
5K
–
0
–
30 GAIN
40
20
50
70
8
15
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
8
15
300
1K
15
10
LINE INPUT
( MIC PAD )
50
70
8
5K
500
300
1K
HM
+
8
8
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
10
LINE INPUT
( MIC PAD )
50
70
8
15
400
30 GAIN
40
20
LO CUT
+ HF
600
8K
0
–
0
–
15
2K
1K
3K
10
LINE INPUT
( MIC PAD )
50
70
8
15
600
8K
30 GAIN
40
20
LO CUT
+ HF
8
15
2K
1K
3K
600
0
–
8
15
10
LINE INPUT
( MIC PAD )
50
LO CUT
+ HF
8
30 GAIN
40
20
70
LO CUT
–
( MIC PAD )
50
70
LINE INPUT
LM
10 –
20
40
•
8
AUX
10 – AUX
15
0 OUT
0 OUT
+
+
5
5
20
40
•
10
AFL A3
15
15
0
–
15
+ LF
8
8
15
0
–
15
+ LF
8
15
EQ
ON
15
8
15
EQ
ON
0
–
15
+ LF
8
15
1
15
8
15
EQ
ON
0
–
15
+ LF
8
15
2
15
8
15
EQ
ON
0
–
15
+ LF
8
15
3
15
8
15
EQ
ON
0
–
15
+ LF
8
15
4
15
8
15
EQ
ON
0
–
15
+ LF
8
15
5
15
8
15
EQ
ON
0
–
15
+ LF
8
15
6
15
8
15
EQ
ON
0
–
15
+ LF
8
15
7
15
8
15
EQ
ON
0
–
15
+ LF
8
15
8
15
8
15
15
0
–
8
15
15
0
–
15
+ LF
8
15
EQ
ON 10
9
+ LF
8
15
15
8
15
0
–
15
+ LF
8
15
EQ
ON 11
15
8
15
0
–
15
+ LF
8
15
EQ
ON 12
15
8
15
0
–
15
+ LF
8
15
EQ
ON S1
15
8
15
0
–
+ LF
8
15
EQ
ON S2
15
40
•
15
EQ
ON S3
10 –
20
8
15
15
AFL A4
AUX
10 – AUX
15
0 OUT
0 OUT
+
+
5
5
20
40
•
10
EQ
ON S4
10
AFL A5
10
AFL A6
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
AUX SENDS
GROUP ASSIGN TO MAINS
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
AUX 1- 2
PRE
10 – LEV
0
+
20
3
30
40
• 6
M
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
=
1
=
2
1
2
AUX 3 - 4
PRE
10
–
20
30
40
•10
20
30
40
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
0 5
+
3
6
–
0 6
+
3
6
10
L
ODD
–
20
30
40
•10
20
30
40
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
10
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
2
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
30
40
•10
20
30
40
1
10
–
20
30
40
•
10
20
30
40
6
–
0 4
+
3
6
•
0 5
+
3
6
–
0 6
+
3
6
10
=
R
EVEN
L
ODD
MUTE
20
30
40
20
30
40
XR
5
0
6
–
0 4
+
3
6
10
–
•
10
20
30
40
•
10
20
0 5
+
3
30
6
–
0 6
+
3
6
GROUP MASTERS
G1
G2
AUX 5 - 6
PRE
=
BAL
R
EVEN
MUTE
20
10
0 3
+
3
•
20
30
40
G4
5
•10
L
ODD
10
5
–
G3
R
2
AUX 5 - 6
PRE
BAL
G2
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
BAL
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
10
5
–
20
AUX 5 - 6
PRE
PAN
=
AUX 3 - 4
PRE
0 3
+
3
•
AUX 5 - 6
PRE
=
1
AUX 3 - 4
PRE
0 3
+
3
•
=
L
G1
G3
G4
AFL
BAL
R
EVEN
10
4 5
3
2
1
SOURCE IS
6
4 5
PRE
7 FADER 3
8
9
2
1
0
10
MONITOR
SUM
MONO
6
7
8
9
0
10
ALT OUT (L-R)
10
SOLO
OFF
MUTE
5
PK
SIG
5
5
SOURCE
SELECT
( ADD)
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
S1
0
S2
0
S3
0
S4
0
0
TAPE
IN
BUS
ASSIGN
5
MONO
BUS
ASSIGN
MONO
10
L- R
G1- 2
G3 - 4
5
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
20
G1- 2
G3 - 4
30
5
MONO
10
L- R
15
BUS
ASSIGN
MONO
10
L- R
15
20
5
A1- 2
G1- 2
G3 - 4
30
10
L- R
15
20
15
G1- 2
20
G3 - 4
30
30
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
PK
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
SIG
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
PFL
AFL
MONO
LEFT
RIGHT
Bus Inputs:
+48V
On
Bal In @ +4dBu
+48V
On
+48V
On
+48V
On
+48V
On
+48V
On
Bal Line In
XR
L
Bus In
G3
L
G1
Bus In
Mic In
L
1
3
L
R
L
R
2
3
12
R
Bal Line In
Bal Line In
L
L
L
L
R
Line
In
S3
Line
In
R
S2
Line
In
Main
Insert
Bal Line In
+48V
On
Bal Line In
+48V
On
Bal Line In
+48V
On
Bal Line In
+48V
On
Bal Line In
T= IN
S= GND
Tape In
All@
–10dBV
RCA Jack
DEFAULT CHANNEL SETTINGS:
Direct-Out (D - O) Is POST-FADER
Aux Sends Are POST-FADER
When “PRE” Button Is Pressed,
Auxes Switch To PRE-FADER (POST-EQ)
Direct
Out
10
A lt
O ut
Direct
Out
Tape
(L i ne)
In
L
L
L
R
R
R
R
+48V
On
Bal Line In
+48V
On
Bal Line In
+48V
On
Bal Line In
Bal Line In
Mic In
Chan Insert
8
Mic In
Chan Insert
7
6
Mic In
Mic In
Chan Insert
Chan Insert
5
Mic In
Chan Insert
4
3
Mic In
Chan Insert
Mic In
Chan Insert
2
1
Mic In
Chan Insert
Main Outputs:
Main Inserts:
Bal Line @ +4dBu
or
Bal Mic @ – 25dBu
Tip = Send
Ring = Return
Sleeve = Ground
9
Direct
Out
8
Group
Out
Direct
Out
Group
Insert
7
Direct
Out
2
6
Direct
Out
Aux Out -XLR
5
Direct
Out
L
L
R
R
4
Direct
Out
3
Direct
Out
Aux Out -TRS
1
2
Direct
Out
Aux Insert
2
1
2
1
4
3
4
3
6
5
6
5
1
4
3
6
5
3
4
Outputs: RCA= Unbal @ – 10dBV
TRS= Ground Comp @ +4dBu
Inputs: RCA= Unbal @ – 10dBV
TRS= Bal @ +4dBu
Group Inserts @– 2dBu:
Tip = Send
Ring = Return
Sleeve = Ground
Pin 2 = Driven
Pin 3 = GC Sense
Pin 1 = Ground
Aux Outputs @+ 4dBu:
Ground Comp
Aux Inserts @– 2dBu:
Tip = Driven
Ring = GC Sense
Sleeve = Ground
Tip = Send
Ring = Return
Sleeve = Ground
Use 5-Pin DIN cable to
interconnect two Consoles
SOLO
LINK
IN
Mic In
Chan Insert
Press
For
Mic Level
OPTIONS FITTED ( ✘ ):
XR-24
Chan Insert
9
Right
D - O Is PRE-FADER (POST-EQ)
When “PRE” Button Is Pressed,
Aux Sends Switch To:
PRE- INSERT
PRE- EQ
Mic In
2
T= Send
R= Return
S= GND
Alt Out
Monitor Out
11
Monitor
Out
L
Line Input @+4dBu
Bus In @+4dBu
Tape In @+4dBu
1/4” TRS Input
T= OUT
S= GND
Chan Insert
10
Left
All@
+4dBu
Chan Insert @+4dBu
Aux Insert @–2dBu
Group Insert @–2dBu
Main Inserts @–2dBu
1/4” TRS Insert
Mic In
Mono
Main Out @+4dBu
Main Out @–25dBu
Aux Out @+4dBu
XLR Male
T= IN +
R= IN –
S= GND
Direct
Out
12
1= GND
2= OUT +
3= OUT –
Direct Out
Aux Out
Group Out
Alt Out
Monitor Out
1/4” TRS Output
11
Mic In
Chan Insert
Line
In
Main Out
Mic In @–40dBu
Bus In @+4dBu
T= OUT +
R= G COMP
S= GND
XR-20
Bal Line In
+48V
On
R
S1
XLR Female
1
Mic In
Bal Line In
S4
1= GND
2= IN +
3= IN –
Mic In
Bal Line In
R
G2
2
Mic In
R
+4dBu
G4
Bal Line In
+48V
On
20
Mono
R
+48V
On
OUT
ON
X-RA CK
RACK-MOUNT MIXER
Professional Audio Products
Designed and Built in the USA
Crest Audio Inc.
Paramus, NJ 07652 USA
www.crestaudio.com
02
AC IN
100 - 240V
50 / 60 Hz
80W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR
N484
ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE
OU DE CHOC ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL
SOUS LA PLUIE OU Á L'HUMIDITÉ
MOUNT IN RACK ONLY
INSTALLER SUR SUPPORT DE MONTAGE SEULEMENT
NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL
C
UL
®
LISTED
US
COMMERCIAL
AUDIO
SYSTEM
25E9
P
O
W
E
R
1
Direct
Out
X-RACK MONO INPUT MODULE
12 OR 8 MONO INPUTS AVAILABLE
MAIN
RIBBON
CABLE
34 WAY
PFL
SOLO LEFT
+48V ON
+48V
SOLO RIGHT
HPF
70Hz
-18dB/Oct
GAIN
12 - 70 dB
BAL MIC IN
LINE
TO
PEAK
CIRCUIT
LEVEL FREQ LEVEL
FREQ LEVEL
LEVEL
LF
80 HZ
HPF
LOW MID
80 - 2 KHZ
HI MID
400 - 8 KHZ
CHAN
FADER
HF
12 KHZ
RIGHT
GROUP
FADER
POST
FADER
GROUP-TO-MAIN
ASSIGN
SWITCHES
G3-4
G1-2
ODD GROUPS FEED
LEFT SOLO, EVENS
FEED RIGHT SOLO
BUS ASSIGN
SWITCHES
+10
INPUT
PREAMP
27dB
PAD
L-R
FADER AMP
FOUR BAND EQ
BAL LINE IN
LEFT
SOLO DC
MONO
PAN
INSERT
SEND / RTN
POST
FADER
GC
SIG
G
A1-2
PRE
PRE
SOURCE
MUTE ?
LEVEL
1-2
PAN
1-2
YES
X-RACK AUX BUSES 1-2
(STEREO PAIR)
A1
A2
SIG
PRE
FADER
PRE-SOURCE
BUFFER
PRE
FADER
PRE
FADER
LEV 3
A3-4
PRE
POST
FADER
GC
LEV 4
AUX 2
AUX 1-2
MASTER
AFL
A4
LEV 5
A5-6
PRE
PRE-SOURCE
SELECT
INSERT
SEND / RTN
A3
SOLO LEFT
+10
PRE
INSERT
REAR PANEL
AUX 1
AUX
MIX AMPS
NO
PRE
EQ
G
GROUP
OUT
60MM
PEAK R
(AFL)
AFL
SOLO DC
SOLO
TRIGGER
DIRECT OUT
+10
SOLO LEFT
100MM
PEAK R
(PFL)
DIRECT OUT
SOURCE
GROUP
BUS IN
TO GROUP
MIX-AMP
GROUP
LED
SOLO RIGHT
INPUT
SIGNAL
LED
INSERT
SEND / RTN
PRE
FADER
MONO
MUTE
EQ ON
X-RACK GROUPS
(1 OF 4 SHOWN)
GROUP
MIX AMP
AUX 1
OUT
A5
LEV 6
AUX 2
OUT
GC
SOLO RIGHT
GC
A6
+10
SOLO DC
AUX SENDS
1 THRU 6
X-RACK STEREO INPUT MODULE
4 OR 8 STEREO INPUTS AVAILABLE
+48V ON
INSERT
SEND / RTN
SOLO LEFT
+48V
PRE
FADER
BAL MIC IN
X-RACK AUX BUSES 3 THRU 6
(1 OF 4 SHOWN)
AUX
MIX AMP
PFL
GAIN
15 - 65 dB
LINE
MONO
LEVEL FREQ LEVEL
BAL
FREQ LEVEL
LEVEL
AUX
MASTER
AFL
SOLO RIGHT
SOLO LEFT
+10
TO
PEAK
CIRCUIT
MUTE
SOLO RIGHT
SOLO DC
AUX
OUT
SOLO DC
GC
EQ ON
LF
80 HZ
LEFT
LOW MID
80 - 2 KHZ
HI MID
400 - 8 KHZ
MONO
HF
12 KHZ
L-R
G1-2
G3-4
FADER AMPS
CHAN
FADER
LEFT
FOUR BAND EQ - LEFT
BAL LINE IN
+10
27dB
PAD
BUS ASSIGN
SWITCHES
POST
FADER
PRE
EQ
LF
80 HZ
BAL MIC IN
LOW MID
80 - 2 KHZ
HI MID
400 - 8 KHZ
HF
12 KHZ
A1-2
PRE
PAN
1-2
LEVEL
1-2
LEFT
A1
RIGHT
A2
SOLO
TRIGGER
INPUT
SIGNAL
LED
PEAK
INPUT
PREAMP
27dB
PAD
PRE
SOURCE
MUTE ?
PRE-AMP
OUT
L&R
PEAK R
(PFL)
PRE
FADER
LEFT
G
PRE
FADER
POST
FADER
L&R
RIGHT
PRE
FADER
L&R
PRE
EQ
LEV 4
A5-6
PRE
L&R
MIXED
RIGHT
MIX AMP
A4
LEV 5
PRE-SOURCE
BUFFERS
100MM
G
R-INSERT
SEND / RTN
GC
ROTARY
POT
FADER
PAD
AMP
ALL SWITCHES SHOWN IN THE UP (DESELECTED) POSITION
AMP(LIFIER) GAIN SHOWN IN DB WHEN NEEDED
WHEN SHOWN: 1/4” TRS SWITCHING JACKS HAVE NORMALLY CLOSED CONTACTS
USER OPTIONS IMPLEMENTED WITH REMOVABLE LINKS AND SOLDER BLOBS
DEFAULT OPTION POSITION SHOWN UNDERLINED
FOR MODELS:
XR-20 : 12 MONO / 4 STEREO
XR-24: 8 MONO / 8 STEREO
PANEL
SWITCH
X-RACK MAIN OUT
MONO
M-PRE
FADER
MONO
SIGNAL
LED
FET
SWITCH
ELECT
SWITCH
RCA
JACK
1/4” TRS
JACK
XLR
JACK
STANDARD OUTPUT LEVEL IS +4 dBu AT 0 VU
PIN 2 HOT ON ALL BALANCED INPUTS AND OUTPUTS (XLR JACKS)
FOR UNBALANCED OPERATION:
TIE PIN 3 TO PIN 1, USE PIN 2 FOR OUTPUT, PIN 1 FOR GND
“Ø” SYMBOL INDICATES POLARITY REVERSE
30dB
PAD
100MM
GAIN
BICOLOR GROUND COMP BALANCED
DRIVER
DRIVER
LED
LED
RIGHT
BAL OUT
R-POST
FADER
AUX SENDS
1 THRU 6
FITTED
SOLDER
LINK
BLOB
USER OPTIONS
MIC LEVEL
RIGHT
FADER
+10
MONO
MIX AMP
P
R-PRE
FADER
LEFT
BUS IN
RIGHT
LEFT
BAL OUT
30dB
PAD
+10
R
RIGHT
BUS IN
A6
MIC LEVEL
L-POST
FADER
A5
LEV 6
PRE-SOURCE
SELECT
LEFT
FADER
A3
SIG
L&R
MIXED
PRE
EQ
SIG
LEV 3
NO
LEFT
REAR PANEL
A3-4
PRE
L-PRE
FADER
L/R
SIGNAL
LED
YES
RIGHT
L-INSERT
SEND / RTN
RIGHT
100MM
FOUR BAND EQ - RIGHT
BAL LINE IN
X-RACK MAIN OUT
LEFT-RIGHT
LEFT
MIX AMP
+10
OBE
FRANK
MONO
BUS IN
M-INSERT
SEND / RTN
MONO
FADER
MIC LEVEL
MONO
BAL OUT
M-POST
FADER
PEAK R
(AFL)
30dB
PAD
+10
AFL
SIG
SOLO LEFT
LEGENDS
100MM
G
SOLO RIGHT
SOLO DC
SOLO-LINK CONNECTORS.
USE 5-PIN DIN CABLE FROM
SLAVE CONSOLE OUT
TO MASTER CONSOLE IN
Use 5-Pin DIN cable to
interconnect two Consoles
SOLO
LINK
IN
OUT
TAPE-IN
LEVEL
SOLO-LINK:
TIES SOLO AUDIO AND
CONTROL BETWEEN
CONSOLES. SLAVE SOLOS
SHOW UP ON MASTER
CONSOLE.
-10dBV
ON
INTERNALLY FUSED AND
SHORT-CIRCUIT PROTECTED
AC IN
100-240V
50 / 60 Hz
80W
X-RACK BLK DIA-REV1.1 - 5/08/01
+48V
DC OUTPUT
ANALOG
GROUND
TO POWER
DISTRIBUTION
RIBBONS
+12V
AUX DC
GROUND
SAFETY
GROUND
TO CHASSIS
CHASSIS
GROUND
TAPE-IN R
SOLO
CTRL
SOLO
CONTROL
LOGIC
TO:
PHONES,
MONITOR
&
METERS
FOLLOW SOLO,
NORMALLY SHOW
L / R OUT
LEFT OUT
RIGHT OUT
LEFT
PRE-FADER
ADD
MONO
RIGHT
PRE-FADER
SOLO FEED
L-R
SOLO CTRL
SOLO
ON
ADD
MONO
(RECESSED)
+4dBu
-17V
SOLO DC
TO:
PHONES
&
MONITOR
TAPE IN
RIGHT
+17V
POWER
+4dBu
-10dBV
SHORT-CIRCUIT
PROTECTION
UNIVERSAL INPUT-VOLTAGE
SWITCHING POWER SUPPLY
AUX-2 BUS
RIGHT BUS
TAPE TO
L/R
+9
6
3
0
-3
6
9
12
15
18
21
24
LED
METERS
SOLO
FEED
L-R
SOLO RIGHT
LEFT BUS
TAPE-IN L
BNC CONNECTOR
FOR 12VOLT LAMP
( ON FRONT PANEL )
SOLO
MIX AMPS
SOLO LEFT
AUX-1 BUS
TAPE IN
LEFT
POLY
FUSES
X-RACK REAR PANEL:
AC INLET & SWITCH
TAPE TO
AUX 1-2
TAPE
IN
FROM
MONITOR
SOLO
OFF
GC
R
GC
AUDIO SOURCES FOR MONITOR - ALL PRE-FADER
GRP3-4 GRP1-2
MON-L
L
MON-R
R
L-R
MONO
ALT
OUT
PWR
ON
HEADPHONE
LEVEL
LEFT OUT
TAPE-IN L
ALT
LEVEL
L
AUX1-2 TAPE IN
MONITOR
LEVEL
SOLO OFF
SUM
MONO
TO
PHONES
MON-L
MON-R
RIGHT OUT
TAPE-IN R
MONO OUT
MONO PRE
HEADPHONE
AMPS
MONITOR SOURCE SELECT
( SELECTED SOURCES ADD TOGETHER )
TO
ALT-OUT
SOLO FEED
L-R
SOLO FEED
L-R
SOLO CTRL
SOLO CTRL
L
GC
R
GC
MONITOR
OUT
47Uf50V Elect