Australion monitor AMIS23X User manual
Australian Monitor
1 Clyde Street, Silverwater NSW 2128 Australia
+61 2 9647 1411
www.australianmonitor.com.au
SERVICE INFORMATION
AMIS23X
CROSSOVER
CONTENTS:
OPERATION MANUAL
SCHEMATIC DIAGRAMS
Clever Features, Contractor Friendly
AMIS23X
Stereo 2-way/Mono 3-way crossover
Installation
And
Operation Manual
2
Introduction
The Australian Monitor Installation Series AMIS23X is a one rack unit, fourth
order Linkwitz-Riley electronic crossover. The AMIS23X can be configured as
either a stereo two way or a mono three way crossover. Featuring clip LED
indication per band per channel, frequency range selector switch, CD horn
boost switch & polarity reverse switching, the AMIS23X is an extremely well
featured crossover at a contractor friendly price.
3
Front Panel
1. Power Switch
This switches the mains power “on” to the unit.
2. Channel 1 Crossover Section
This section refers to the controls for channel one. This section is duplicated
for channel 2.
1 2
4 5 6 7 8 9 10
3
2
4
3. Clip LED’s
These LED’s indicate that the high range or low range signals are clipping
& entering distortion. Occasional flickering of these LED’s is acceptable
but if the LED remains on continuously, the level should be turned down to
avoid distortion.
4. Input Level.
This controls the input level of signal being fed to each channel.
5. Low Mute.
This switch will mute the low frequency band signal output for each
channel.
6. Low (lo) Level.
This controls the level of the low frequency band output of each channel.
7. Range Selection Switch
This switches the frequency value of the frequency control (8) from the
frequency shown on the front panel when the switch is the “off” position
to 10 x the frequency shown when in the “on” position.
8. Mid (lo/Mid) Frequency.
This will determine the crossover frequency between Low frequencies &
High frequencies for each channel when used in 2 way stereo mode. In 3
way mono mode this control will determine the (Lo/Mid) crossover point &
the corresponding Channel 2 control will determine the (Mid/Hi) crossover
point.
9. Hi Mute
This switch will mute the Hi frequency band signal output for each
channel.
10.High Level.
This controls the level of the high frequency band output of each
channel.
5
Back Panel
1. Channel 2 High output XLR
Channel 2 XLR high frequency output/ Mono 3 way high frequency
output.
2. Channel 2 High output Jack
Channel 2 Jack high frequency output/ Mono 3 way high frequency
output.
3. Hi Phase.
This switch reverses the polarity of the high frequency output.
4. Channel 2 Low output XLR
Channel 2 XLR low frequency output/ Mono 3 way mid frequency output.
5. Channel 2 Low output Jack
Channel 2 Jack low frequency output/ Mono 3 way mid frequency
output.
6. CD Boost Switch.
This switches in a constant directivity horn equalization circuit. This is used
with horns that require a high frequency boost. This boost is +3 dB @ 3.5kHz
rising 6dB per octave to 22.5kHz. If constant directivity horn equalization is
required engage this switch. Consult your horn manufacturer to determine
if this equalization is required.
7. Mode Mono/stereo.
This switch will determine if the AMIS34X will operate in 2 way stereo or 3
way mono configuration. The switch “in” is 3 way mono mode & switch
“out” is 2 way stereo mode.
10
1
2
3
4
5
6
7
8
911
12
13
14
15
16
17 18
19
6
8. Channel 2 Input XLR
This input accepts a balanced line level signal in 2 way stereo mode. This
input is not used in 3 way mono mode.
9. Channel 2 Input Jack
This input accepts a balanced line level signal in 2 way stereo mode. This
input is not used in 3 way mono mode.
10. Channel 1 High output XLR
Channel 1 XLR high frequency output. This is not used in Mono 3 way
mode.
11. Channel 1 High output Jack
Channel 1 Jack high frequency output. This is not used in Mono 3 way
mode.
12. Hi Phase.
This switch reverses the polarity of the high frequency output.
13. Channel 1 Low output XLR
Channel 1 XLR low frequency output/ Mono 3 way Lo frequency output.
14. Channel 1 Low output Jack
Channel 1 Jack low frequency output/ Mono 3 way Lo frequency output.
15. CD Boost Switch.
This switches in a constant directivity horn equalization circuit. This is used
with horns that require a high frequency boost. This boost is +3 dB @ 3.5kHz
rising 6dB per octave to 22.5kHz. If constant directivity horn equalization is
required engage this switch. Consult your horn manufacturer to determine
if this equalization is required.
16. Channel 1 Input XLR
This input accepts a balanced line level signal in 1 way stereo mode. This
input is the input used in 3 way mono mode.
17. Channel 1 Input Jack
This input accepts a balanced line level signal in 2 way stereo mode. This
input is the input used in 3 way mono mode.
18. Voltage Selector Switch
This switches the correct voltage for your part of the world.
7
19. Fuse Holder.
The AMIS23X has a 500mA mains voltage fuse.
Modes of Operation
2 Way Stereo
When using the AMIS23X in 2 way stereo mode, firstly ensure the Stereo/Mono
Mode switch (7) is set to the correct position (switch “out”), then simply patch
the left line level output signal into input 1 (16 or 17) & the right line level
output signal into input 2 (8 or 9). Connect low output 1 (13 or 14) & low
output 2 (4 or 5) to your low frequency amplifiers. Connect the Channel 1
high output (10 or 11) & the channel 2 high output (1 or 2) to your high
frequency amplifiers.
3 Way Mono
When using the AMIS23X in 3 way mono mode, firstly ensure the Stereo/Mono
Mode switch (7) is set to the correct position (switch “in”), then simply patch
the line level output signal into input 1 (16 or 17). Connect low output 1 (13 or
14) to your Low frequency amplifiers, connect low output 2 (4 or 5) to your
mid frequency amplifiers & connect high output 2 to your high frequency
amplifiers. In this mode ensure Channel 1 Range Selection Switch (7) is set to
X1 & Channel 2 Range Selection Switch (7) is set to X10,& that both Channel
2 High Level (10) & Channel 2 Input Level (4) are set to ‘0’.
AMIS23X Specifications
1. Frequency Range; x1: 80Hz – 920 Hz
x10: 800Hz – 9.2 kHz
2. Frequency Response; 20 Hz – 20 kHz
3. S/N Ratio; Low Frequency Output @ 0dB <-106dBu
High Frequency Output @ 0dB <-97dBu
1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
R183
825R
C102
221P R188
10K
C168
822J/100V
1
2
INPUT
RP101
B103J
1
IC101A
JRC2068DD
+
_2 1
3
C104
221P
D103
IN4148
D102
IN4148
D101
IN4148
D104
IN4148
VR101
B10K C142
100uF/25V
RP102
B103J
1
IC101B
JRC2068DD
+
_6 7
5
SW101
CD Boost
-15V
+15V
IC113
TC4066BP
R173
1M5
R174
1M5
R175
100K
R157
10K
R177
1M5
R178
1M5
D106
6V8 D105
6V8
R182
560R
R176
10K
SW104
Range
C166
47uF/16V
C167
47uF/16V
R181
560R
+15V
-15V
1 7
8
VR104A
B50K
VR104B
B50K
VR104C
B50K
VR104D
B50K
IC103B
JRC2068DD
IC104A
JRC2068DD
IC102B
JRC2068DD
IC103A
JRC2068DD R160
10K
R162
10K
R161
10K
R159
10K
R156
10K
R155
10K
C110
153J
C164
182J
R143
3670R
IC102A
JRC2068DD
C109
153J
C161
182J
R144
10K
R142
2490R R141
15K4
R140
10K R145
3570R
R158
10K
C112
153J C157
182J
C160
182J
C111
153J
12
3
5
67
+
_
+
_
+
_
+
_
+
_
+
_
12
3
5
67
12
3
5
6
7
IC104B
JRC2068DD
R139
10K
SW102
Low Mute
VR102
B10K
VR103
B10K
SW103
Hi Mute R130
4990RR131
27K4
_
+
IC1112A
JRC2068DD
R185
10K
R184
10K
R172
2670R
R129
10K
R127
7K5 R126
10K
R128
100K
R179
1K5
C?
221
IC111B
JRC2068DD
+
_
1
2
3
5
6
7
+15V
R125
4990RR124
27K4
_
+IC112A
JRC2068DD
R187
10K
R186
10K
R171
2670R R121
10K
R120
7K5
R123
10K
R122
100K
R168
1K5
C?
221
IC112B
JRC2068DD
+
_
1
2
3
5
6
7
+15V
1
2
3
J102
-15V
RP108
B103J RP107
B103J
IC108B
JRC2068DD
IC108A
JRC2068DD
C128
221P
C135
221P
1
2
3
5
67
+
_
1 1
+
_
R110
150R
R111
100K
C127
182J
C130
100uF/25V
R113
150R
R112
100K
C134
182J
C132
100uF/25V
SW6A
Hi Phase
SW6B 2
1
HIGH OUT
1
2
3
J101
POWER
+8
4
IC101
_
+8
4
IC102
_
+8
4
IC103
_
+8
4
IC104
_
+8
4
IC108
_
+8
4
IC109
_
+8
4
IC111
_
+8
4
IC112
_
C103
104M5Z
C106
104M5ZC165
104M5ZC162
104M5ZC158
104M5ZC136
104M5ZC126
104M5Z
C163
104M5ZC159
104M5ZC156
104M5ZC129
104M5ZC119
104M5Z
C108
104Z
C107
104Z
R103
2R2 1/2W
C141
100uF/25V C143
100uF/25V
C145
100uF/25VC144
100uF/25V
C137
470uF/25V
C138
470uF/25V
R102
2R2 1/2W
-15V
+15V
POWER
AC230/110V ~
~_
+
DB1
W04M
C10
472M/400-AA
250V/1A LC-410104
C3
2200uF/35V
C2
2200uF/35V
C4
104Z/Y5V
C5
104Z/Y5V
7815
7915
1
1
C12
470uF/16V
C7
470uF/16V
C8
104Z/Y5V
C9
104Z/Y5V
1K2
1
2
3
P1
1
2
P4
RED
±15V
AC230V
AC110V
SW205
Mode Mono/Stereo
AB
C101
104K/400JS
RP106
B103J RP105
B103J
IC109B
JRC2068DD
IC109A
JRC2068DD
C118
221P
C125
221P
1
2
3
5
67
+
_
1 1
+
_
R106
150R
R107
100K
C117
182J
C120
100uF/25V
R109
150R
R108
100K
C124
182J
C122
100uF/25V
2
1
LOW OUT
LED101
Low
LED102
High 1
2
3
P102
C12
104Z/Y5V
C13
104Z/Y5V
X1
471
Channel 1
Australian Monitor
AMIS23X Crossover
1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
R283
825R
C202
221P R288
10K
C268
822J/100V
XLR
INPUT
INPUT
RP201
B103J
1
IC201B
JRC2068DD
+
_
213
C204
221P
D203
IN4148
D202
IN4148
D201
IN4148
D204
IN4148
VR201
B10K C242
100uF/25V
RP202
B103J
1
IC201A
JRC2068DD
+
_
67
5
SW201
CD Boost
-15V
+15V
IC213
TC4066BP
R273
1M5
R274
1M5
R275
100K
R257
10K
R277
1M5
R278
1M5
D206
6V8 D205
6V8
R282
560R
R276
10K
SW204
Range
C166
47uF/16V
C267
47uF/16V
R281
560R
+15V
-15V
1 7
8
VR204A
B50K
VR204B
B50K
VR204C
B50K
VR104D
B50K
IC203B
JRC2068DD
IC204A
JRC2068DD
IC102B
JRC2068DD
IC203A
JRC2068DD R160
10K
R162
10K
R261
10K
R259
10K
R256
10K
R255
10K
C210
153J
C264
182J
R243
3670R
IC202A
JRC2068DD
C209
153J
C261
182J
R244
10K
R242
2490R R241
15K4
R240
10K R245
3570R
R258
10K
C212
153J C257
182J
C260
182J
C211
153J
12
3
5
67
+
_
+
_
+
_
+
_
+
_
+
_
12
3
5
67
12
3
5
6
7
IC204B
JRC2068DD
R239
3K92
SW202
Low Mute
VR202
B10K
VR203
B10K
SW203
Hi Mute R230
4990RR231
27K4
_
+
IC212A
JRC2068DD
R285
10K
R284
10K
R272
2670R
R229
10K
R227
7K5 R226
10K
R228
100K
R279
1K5
外插件
221
IC211B
JRC2068DD
+
_
1
2
3
5
6
7
+15V
R225
4990RR224
27K4
_
+IC212A
JRC2068DD
R287
10K
R286
10K
R271
2670R R221
10K
R220
22K
R223
10K
R222
100K
R268
1K5
外插件
221
IC212B
JRC2068DD
+
_
1
2
3
5
6
7
+15V
1
2
3
J102
-15V
RP208
B103J RP207
B103J
IC208B
JRC2068DD
IC208A
JRC2068DD
C228
221P
C235
221P
1
2
3
5
67
+
_
1 1
+
_
R210
150R
R211
100K
C227
182J
C230
100uF/25V
R213
150R
R212
100K
C234
182J
C232
100uF/25V
SW206A
Hi Phase
SW206B
XLR
HIGH OUT
1
2
3
J101
POWER
+8
4
IC201
_
+8
4
IC202
_
+8
4
IC203
_
+8
4
IC204
_
+8
4
IC208
_
+8
4
IC209
_
+8
4
IC211
_
+8
4
IC212
_
C203
104M5Z
C206
104M5ZC265
104M5ZC262
104M5ZC258
104M5ZC236
104M5ZC226
104M5Z
C263
104M5ZC259
104M5ZC256
104M5ZC229
104M5ZC219
104M5Z
C208
104Z
C207
104Z
R203
2R2 1/2W
C241
100uF/25V C243
100uF/25V
C245
100uF/25VC244
100uF/25V
C237
470uF/25V
C138
470uF/25V
R202
2R2 1/2W
-15V
+15V
SW205
Mode Mono/Stereo
RP206
B103J RP205
B103J
IC209B
JRC2068DD
IC209A
JRC2068DD
C218
221P
C225
221P
1
2
3
5
67
+
_
1 1
+
_
R206
150R
R207
100K
C217
182J
C220
100uF/25V
R209
150R
R208
100K
C224
182J
C222
100uF/25V
XLR
LOW OUT
LED201
Low
LED202
High 1
2
3
P202
TO-CH1 OUT
Australian Monitor
AMIS23X Crossover
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