Crest Audio X-RACK XR-20 - Administrator Guide

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

SOLO
OFF
GAIN
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
EQ
ON
L
ODD R EVEN
=
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
PAN
MUTE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
G3-4
G1-2
L-R
LO CUT
LEV
PAN
MONO
BUS
ASSIGN
SIG
PK
G1
AFL
AUX SENDS
5
6
TAPE
IN
FROM
MONITOR
P
H
O
N
E
S
1
357
10
09
2 8
6
4
SUM
MONO
1
357
10
09
2 8
6
4
MONITOR
SOURCE
SELECT
(ADD)
SOLO
OFF
A1-2
TAPE
IN
1
357
10
09
2 8
6
4
ALT OUT (L-R)
40
15 10 0
10
•
5
20 +
–
40
15 10 0
10
•
5
20 +
–
40
15 10 0
10
•
5
20 +
–
40
15 10 0
10
•
5
20 +
–
40
15 10 0
10
•
5
20 +
–
1
357
10
09
2 8
6
4
1-2
TO A1-2
TO L-R
AFL AFL
TAPE
IN
M
GROUP ASSIGN TO MAINS
A5 A6
L
R
AUX
OUT
AUX
OUT
AUX
OUT
AUX
OUT
AUX
OUT
SOLO PWR
L R
G2 G3 G4
G1 G2 G3 G4
LAMP
12V
5
10
0
5
10
20
30
LEFT RIGHTMONO
ADD MONO
TO PHONES
& ALT OUT
1
GROUP MASTERS
0
9
6
12
3
6
9
3
15
24
18
21
LM
LF
HF
HM
5
10
0
5
10
20
30
15
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
2
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
3
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
4
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
5
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
6
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
7
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
8
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
9
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
10
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
11
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
12
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
S1
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
S2
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
S3
LM
LF
HF
HM
AUX 1-2
PRE
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
40
20 10 0
6
•
3
30
+
–
0
1515
8 8
+–
1 2
=
AUX 3-4
PRE
AUX 5-6
PRE
0
1515
8 8
+–
0
1515
8 8
+–
0
1515
8 8
+–
LEV
PAN
S4
LM
LF
HF
HM
SIG
PK
SOURCE IS
PRE
FADER
XR 20
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=PAN
L
ODD R EVEN
=BAL
L
ODD R EVEN
=
L
ODD R EVEN
=
L
ODD R EVEN
=
BAL BAL BAL
LINE INPUT
(MIC PAD )
1EQ
ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON
AFL AFL
A3 A4
AFL
2 3 4 5 6 7 8 9 10 11 12 S1 S2 S3 S4
SIG
PK
PFL
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
20
10
40
50
70
30
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K 600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
600
1K 2K 3K
8K
400
5K
300 500 1K
2K
100
SUM
INPUTS SUM INPUTS SUM INPUTS
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
PFL
SIG
PK
AFL
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
MUTE
G3-4
G1-2
L-R
MONO
BUS
ASSIGN
5
10
0
5
10
20
30
15
G3-4
G1-2
L-R
MONO
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
5
6
3
4
300 500 1K
2K
100
LINE INPUT
(MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )LINE INPUT (MIC PAD )STR LINE IN (MIC PAD )STR LINE IN (MIC PAD )STR LINE IN (MIC PAD )STR LINE IN (MIC PAD )
SUM
INPUTS
GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
10
40
50
70
30 GAIN
20
15
40
50
60
30 GAIN GAIN GAIN
20
15
40
50
60
30 20
15
40
50
60
30 20
15
40
50
60
30
LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT LO CUT
5
10
0
5
10
20
30
15

Group
Out Aux Insert
1
2
3
4
Tape
(Line)
In
Alt
Out
Monitor
Out
Press
For
Mic Level
Aux Inserts @–2dBu:
Tip = Send
Ring = Return
Sleeve = Ground
Main
Insert Aux Out -XLR 1
3
5
1
3
5
Aux Outputs @+4dBu:
Ground Comp
Pin 2 = Driven
Pin 3 = GC Sense
Pin 1 = Ground
Tip = Driven
Ring = GC Sense
Sleeve = Ground
R
L
R
L
Group
Insert
SOLO
LINK
IN
Main Out
2
4
6
2
4
6
1
3
5
2
4
6
R
L
R
L
R
L
R
L
Main Outputs:
Bal Line @ +4dBu
or
Bal Mic @ –25dBu
Main Inserts:
Tip = Send
Ring = Return
Sleeve = Ground
OUT
Use 5-Pin DIN cable to
interconnect two Consoles
Group Inserts @–2dBu:
Tip = Send
Ring = Return
Sleeve = Ground
Outputs: RCA= Unbal @ –10dBV
TRS= Ground Comp @ +4dBu
Inputs: RCA= Unbal @ –10dBV
TRS= Bal @ +4dBu
Aux Out -TRS
T= OUT +
R= G COMP
S= GND
T= IN +
R= IN –
S= GND
1 2
3
1= GND
2= OUT +
3= OUT –
21
3
1= GND
2= IN +
3= IN –
XLR Female
XLR Male
1/4” TRS Output
1/4” TRS Input
Line Input @+4dBu
Bus In @+4dBu
Tape In @+4dBu
Direct Out
Aux Out
Group Out
Alt Out
Monitor Out
Main Out @+4dBu
Main Out @–25dBu
Aux Out @+4dBu
Mic In @–40dBu
Bus In @+4dBu
T= Send
R= Return
S= GND
1/4” TRS Insert
Chan Insert @+4dBu
Aux Insert @–2dBu
Group Insert @–2dBu
Main Inserts @–2dBu
All@
+4dBu
T= OUT
S= GND
RCA Jack
T= IN
S= GND
Alt Out
Monitor Out All@
–10dBV
Tape In
Mono
Left
Right
ON
P
O
W
E
R
AC IN
100-240V
50/60 Hz
80W
X-RACK
RACK-MOUNT MIXER
NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL
AVIS :RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE
OU DE CHOC ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL
SOUS LA PLUIE OU Á L'HUMIDITÉ
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING:TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE
MOUNT IN RACK ONLY
INSTALLER SUR SUPPORT DE MONTAGE SEULEMENT
N484
Professional Audio Products
Designed and Built in the USA
Crest Audio Inc.
Paramus, NJ 07652 USA
www.crestaudio.com
UL
CUS
®
LISTED
COMMERCIAL
AUDIO
SYSTEM
25E9
OPTIONS FITTED (✘):
DEFAULT CHANNEL SETTINGS:
Direct-Out(D-O)Is POST-FADER
Aux Sends Are POST-FADER
D-O Is PRE-FADER (POST-EQ)
PRE-INSERT PRE-EQ
When “PRE” Button Is Pressed,
Aux Sends Switch To:
02
XR-20 XR-24
When “PRE” Button Is Pressed,
Auxes Switch To PRE-FADER(POST-EQ)
G1
G2
+48V
On
Direct
Out
Chan Insert
1Mic In
L
R
Bal Line In
+48V
On
Direct
Out
Chan Insert
2Mic In
+48V
On
Direct
Out
Chan Insert
3Mic In
+48V
On
Direct
Out
Chan Insert
4Mic In
+48V
On
Direct
Out
Chan Insert
5Mic In
+48V
On
Direct
Out
Chan Insert
6Mic In
+48V
On
Direct
Out
Chan Insert
7Mic In
+48V
On
Direct
Out
Chan Insert
8Mic In
+48V
On
Direct
Out
Chan Insert
9Mic In
+48V
On
Direct
Out
Chan Insert
10 Mic In
+48V
On
Direct
Out
Chan Insert
11 Mic In
+48V
On
Direct
Out
Chan Insert
12 Mic In
123456789101112
+48V
On
LR
S1
L
R
S2
+48V
On
L
R
S3
+48V
On
L
R
S4
+48V
On
Bus In
LRMono
Bus In
G3
G4 Line
In
Line
In
Line
In
Line
In
Mic In
LR
Mic In
LR
Mic In
LR
Mic In
+4dBu
Bus Inputs:
Bal In @ +4dBu
Bal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line In
Bal Line InBal Line InBal Line InBal Line In
XR 20

GRP3-4
MONO LEFT
BAL MIC IN
BAL LINE IN INPUT
PREAMP
GAIN
12 - 70 dB
FOUR BAND EQ
LEVEL
LF LOW MID HI MID HF
HPF
LINE
27dB
PAD
PRE-SOURCE
SELECT
PRE
SOURCE
MUTE ?
SOLO DC
DIRECT OUT
PAN
+10
MONO L-R G1-2
MUTE
INSERT
SEND / RTN
+48V ON
EQ ON
FADER AMP
PRE-SOURCE
BUFFER
NO
YES
SOLO LEFT
MAIN
RIBBON
CABLE
-
34 WAY
X-RACK MONO INPUT MODULE
12 OR 8 MONO INPUTS AVAILABLE INSERT
SEND / RTN
GROUP
OUT
X-RACK GROUPS
(1 OF 4 SHOWN)
GROUP
MIX AMP
HPF
70Hz
-18dB/Oct FREQ
INPUT
SIGNAL
LED
PRE
FADER
POST
FADER
AUX SENDS
1THRU 6
GROUP-TO-MAIN
ASSIGN
SWITCHES
LEVEL LEVELFREQ LEVEL
SOLO RIGHT
G3-4
BUS ASSIGN
SWITCHES
LEFT
BAL OUT
12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ
X-RACK BLK DIA-REV1.1 - 5/08/01
PFL
AFL
SOLO
TRIGGER
CHAN
FADER
GC
A1-2
PRE
A3
A4
A3-4
PRE LEV 3
LEV 4
A5
A6
A5-6
PRE LEV 5
LEV 6
PRE
FADER
PRE
EQ
PRE
INSERT
DIRECT OUT
SOURCE
POST
FADER
PRE
FADER
REAR PANEL
LEVEL
1-2
BAL MIC IN
BAL LINE IN
GAIN
15 - 65 dB
FOUR BAND EQ - LEFT
LEVEL
LF LOW MID HI MID HF
LINE
27dB
PAD
PRE
SOURCE
MUTE ?
+10
MONO L-R G1-2
MUTE
A1
+48V ON
EQ ON
FADER AMPS
PRE-SOURCE
BUFFERS
NO
YES
SOLO LEFT
X-RACK STEREO INPUT MODULE
4 OR 8 STEREO INPUTS AVAILABLE
MONO FREQ
POST
FADER
L & R
A2
AUX SENDS
1THRU 6
LEVEL LEVELFREQ LEVEL
SOLO RIGHT
G3-4
BUS ASSIGN
SWITCHES
12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ
PFL
SOLO
TRIGGER
CHAN
FADER
A1-2
PRE
A3
A4
A3-4
PRE LEV 3
LEV 4
PAN
1-2
PRE
FADER
PRE
EQ
REAR PANEL
BAL MIC IN
BAL LINE IN INPUT
PREAMP
27dB
PAD
LF LOW MID HI MID HF
12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ FOUR BAND EQ - RIGHT
BAL
+10
A5
A6
A5-6
PRE LEV 5
LEV 6
PRE-SOURCE
SELECT
PRE
FADER
PRE
EQ
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
LEFT
RIGHT
PRE
FADER
L & R
PRE-AMP
OUT
L & R
GC
RIGHT
+10
PEAK
(AFL)
SIG
GROUP
LED
PRE
FADER GROUP
BUS IN
TO GROUP
MIX-AMP
POST
FADER
GROUP
FADER
SOLO DC
SOLO LEFT
SOLO RIGHT
ODD GROUPS FEED
LEFT SOLO, EVENS
FEED RIGHT SOLO
AUX 1
OUT
X-RACK AUX BUSES 1-2
(STEREO PAIR)
AFL
GC
+10
SOLO DC
SOLO LEFT
SOLO RIGHT
INSERT
SEND / RTN
AUX
OUT
X-RACK AUX BUSES 3THRU 6
(1 OF 4 SHOWN)
AUX
MIX AMP
AFL
GC
+10
AUX
MASTER
SOLO DC
SOLO LEFT
SOLO RIGHT
INSERT
SEND / RTN
AUX
MIX AMPS
AUX 2
OUT
GC
AUX 1-2
MASTER
+10
AUX 1
AUX 2
60MM
100MM
100MM
PRE
FADER
POST
FADER
L & R
MIXED
LEFT
RIGHT
PRE
EQ
L & R
MIXED
L-INSERT
SEND / RTN
X-RACK MAIN OUT
LEFT-RIGHT
LEFT
MIX AMP
+10
PEAK
SIG
L / R
SIGNAL
LED
RIGHT
BUS IN
L-POST
FADER
LEFT
FADER
100MM
L-PRE
FADER
RIGHT
BAL OUT
R-INSERT
SEND / RTN
RIGHT
MIX AMP
+10
R-POST
FADER
RIGHT
FADER
100MM
R-PRE
FADER
30dB
PAD
MIC LEVEL
30dB
PAD
MIC LEVEL
LEFT
BUS IN
MONO
BAL OUT
M-INSERT
SEND / RTN
X-RACK MAIN OUT
MONO
MONO
MIX AMP
+10
PEAK
(AFL)
SIG
MONO
SIGNAL
LED M-POST
FADER
MONO
FADER
100MM
M-PRE
FADER
30dB
PAD
MIC LEVEL
MONO
BUS IN
SOLO DC
SOLO LEFT
SOLO RIGHT
AFL
PEAK
(PFL)
SIG
TO
PEAK
CIRCUIT
R
G
INPUT
SIGNAL
LED
PEAK
(PFL)
SIG
R
G
SOLO DC
TO
PEAK
CIRCUIT
G
R
G
R
G
R
+48V
+48V
GC
ALT
OUT
GCGC
LEVEL
1-2 A1
A2
PAN
1-2
ALT
LEVEL
GCGC
LEFT
PRE-FADER
RIGHT
PRE-FADER
ADD
MONO
MONITOR
OUT
GCGC
MONITOR
LEVEL
GCGC
SUM
MONO
L
R
L
R
TAPE INAUX1-2MONOL - RGRP1-2
MONITOR SOURCE SELECT
( SELECTED SOURCES ADD TOGETHER )
SOLO FEED
L - R
SOLO OFF
SOLO CTRL
AUDIO SOURCES FOR MONITOR - ALL PRE-FADER TO
PHONES
HEADPHONE
LEVEL
L
R
SOLO FEED
L - R
SOLO
OFF
SOLO CTRL
HEADPHONE
AMPS
FROM
MONITOR
TAPE
IN
LEFT OUT
RIGHT OUT
TAPE-IN L
TAPE-IN R
MON-L
MON-R
MON-L
MON-R
ADD
MONO
(RECESSED)
MONO OUT
MONO PRE TO
ALT-OUT
SOLO LEFT
SOLO RIGHT
SOLO
MIX AMPS
SOLO DC
SOLO
FEED
L - R
SOLO
CTRL
TO:
PHONES,
MONITOR
&
METERS
SOLO
CONTROL
LOGIC
+9
6
3
0
-3
6
9
12
15
18
21
24
SOLO FEED
L - R
SOLO CTRL
SOLO
ON PWR ON
LEFT OUT
RIGHT OUT
LED
METERS
FOLLOW SOLO,
NORMALLY SHOW
L / R OUT
TAPE-IN R
TAPE-IN L
TAPE IN
LEFT
TO:
PHONES
&
MONITOR
TAPE-IN
LEVEL
TAPE TO
L/R
AUX-1 BUS
AUX-2 BUS
LEFT BUS
RIGHT BUS
TAPE TO
AUX 1-2
ON
POWER
AC IN
100-240V
50/ 60 Hz
80W
X-RACK REAR PANEL:
AC INLET & SWITCH
UNIVERSAL INPUT-VOLTAGE
SWITCHING POWER SUPPLY
+17V
-17V
+12V
+48V
INTERNALLY FUSED AND
SHORT-CIRCUIT PROTECTED
TO POWER
DISTRIBUTION
RIBBONS
ANALOG
GROUND
AUX DC
GROUND
SAFETY
GROUND
TO CHASSIS CHASSIS
GROUND
BNC CONNECTOR
FOR 12VOLT LAMP
( ON FRONT PANEL )
SHORT-CIRCUIT
PROTECTION
POLY
FUSES
FOR MODELS:
XR-20 : 12 MONO / 4 STEREO
XR-24: 8 MONO / 8 STEREO
GC
PGAIN
ROTARY
POT PAD LED AMP PANEL
SWITCH
FADER FET SWITCH
BALANCED
DRIVER
ALL SWITCHES SHOWN INTHE UP (DESELECTED) POSITION
AMP(LIFIER) GAIN SHOWN IN DBWHEN 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
GROUND COMP
DRIVER
BICOLOR
LED 1/4”TRS
JACK XLR JACK OBE FRANK
ELECT
SWITCH
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 LEGENDS
USER OPTIONS
SOLDER
BLOB
FITTED
LINK RCA
JACK
SOLO
LINK
IN OUT
Use 5-Pin DIN cable to
interconnect two Consoles
SOLO-LINK CONNECTORS.
USE 5-PIN DIN CABLE FROM
SLAVE CONSOLE OUT
TO MASTER CONSOLE IN
SOLO-LINK:
TIES SOLO AUDIO AND
CONTROL BETWEEN
CONSOLES. SLAVE SOLOS
SHOW UP ON MASTER
CONSOLE.
DC OUTPUT
-10dBV
-10dBV
+4dBu
TAPE IN
RIGHT
+4dBu

47Uf50V Elect