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PA AUDIO MIXER PREAMPLIFIER
OPERATION MANUAL
OPERATION MANUAL
8
8
Please read this manual thoroughly before making connections and turning on the power. Following the instructions in this
manual will enable you to obtain optimum performance from your new AHUJA PA Audio Mixer Preamplifier.
Please retain this manual for future reference.
MX-15
®
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AC Mains / 12V DC Car Battery operation.
Automatic changeover to battery operation
in case of mains failure ensures continuity of
program.
12 MIC & 3 AUX inputs.
Mic-1 to Mic-9 inputs with ON / OFF switch
and LED indication. MIC-10 to MIC-12
inputs alternate to 3 AUX inputs through
MIC / AUX switch & LED indication. AUX-3
is Stereo Input for CD / TAPE Playback.
Separate Volume Controls for each Mic
Input.
Headphone output for monitoring.
Active BASS and TREBLE controls provided
for shaping tonal quality of music & speech
as desired.
PREOUT, LINE OUTPUTS available .
10 LED array calibrated in dB for Output
level indication.
Frequency Response :
Inputs :
:
20 - 20,000Hz
12 × Mic 0.6mV / 4.7k
2 × Aux 100mV / 470k
1 × Aux(stereo) 0.5V / 100k
2 × Pre out 200mV / 600
4 × Line out 1V / 1k
120mV at 8
BASS: ±
:
Output :
:
Headphones :
Tone Controls : 10dB at 100Hz
TREBLE ±10dB at 10kHz
< 1%
50dB
AC - 240V, 50Hz
DC - 12V Car Battery
W350 x H145 x D200 mm
3.9kg approx.
::
Distortion :
S / N Ratio :
Power Supply :
:
Dimensions :
Weight :
Owing to continuous product upgradation, design & specifications are
subject to change without notice.
Specifications claimed are subject to permissible production tolerances.
SPECIFICATIONSFEATURES
10
0
8
2
64
10
0
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2
64
10
0
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64
10
0
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2
64
10
0
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64
10
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10
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10
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10
0
8
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64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
MIC-1 MIC-2 MIC-3 MIC-4 MIC-5 MIC-6
BASS
TREBLE
MASTER
MIC-7 MIC-8 MIC-9 MIC-10/AUX-1 MIC-11/AUX-2 MIC-12/AUX-3
POWER
MX-15
27
22
17
12
9
6
-3
0dB
+3
6
LEVEL
+10
-10
8
8
6
6
44
22
0
+10
-10
8
8
6
6
44
22
0
1. MIC-1 Volume Control
Similar volume controls are also provided for
MIC-2 to MIC-9 input channels as shown in the
diagram above.
2. MIC-1 ON / OFF Switch with LED indication
3. MIC-12 / AUX-3 Volume Control
4. MIC-12 / AUX-3 Selector Switch with Bi-colour
LED indication
5. BASS Control
6. TREBLE Control
7. LED Array
8. POWER Switch
9. POWER 'ON' LED
10. MASTER Control
Switch to enable or disable the input channel.
Switches with similar functions are also provided
for MIC-2 to MIC-9 input channels as shown in
the diagram above.
Similar volume controls are also provided for
MIC-10 / AUX-1 and MIC-11 / AUX-2 as shown in
the diagram above.
Similar switches with bi-colour LED are also
provided for MIC-10 / AUX-1 and MIC-11 / AUX-2
as shown in the diagram above.
This control boosts or cuts the low frequencies.
Musical instruments like Tabla, Drum and
percussion instruments respond to boost of low
frequencies. When moved from ‘0’ position to 10’
position the low frequencies are reduced which
help eliminate feedback and howling on mic
operation thus allowing opening of higher
volume.
This control boosts or cuts the high frequencies.
It improves the brilliance of sound for string
instruments like Violin,Sarangi, Sitar and to some
extent human voice. Too much boost of this
control can cause oscillation and distortion of
sound.
The 10 LED array calibrated in dB indicates the
Line Output Levels.
It glows when the set is switched ON.
All MIC and AUX input signals are mixable and
these mixed signals are finally controlled by the
Master Control for overall opening of the volume
from the Mixer. For best performance operate
master control say at about ‘6’ to ‘8’ position.
1 2
5
10 9 8
7
6
3
4
10
0
8
2
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10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
10
0
8
2
64
MIC-1 MIC-2 MIC-3 MIC-4 MIC-5 MIC-6
BASS
TREBLE
MASTER
MIC-7 MIC-8 MIC-9 MIC-10/AUX-1 MIC-11/AUX-2 MIC-12/AUX-3
POWER
MX-15
27
22
17
12
9
6
-3
0dB
+3
6
LEVEL
+10
-10
8
8
6
6
44
22
0
+10
-10
8
8
6
6
44
22
0
• Front Panel Controls & Features
2
MX-15
11. BATTERY Terminal Strip
12. AUX-1 & AUX-2 Input Jacks
13. AUX-3 (CD / TAPE) Stereo Input
14. MIC-1 to MIC-12 Input Jacks
15. LINE Output Jacks (1Volt)
16. PRE Output Jacks (200mV)
17. HEADPHONES Output
19. AC Mains Cable
20. AC Fuse
For uninterrupted operation of the Mixer, a 12V
Car Battery is to be connected from this terminal
strip in correct polarity. No battery current is
consumed when the Mixer is working on AC
Mains. Changeover to battery operation is
automatic in case of AC Mains failure.
For connecting AUX input sources such as a
cassette player, additional mixer etc.
For connecting higher output level sources such
as a CD Player, Stereo Cassette Player,
Electronic Keyboard etc.
These jacks are for connecting Lo-impedance
Microphones.
These four jacks are connected in such a way
that they do not load each other. This output is
for connecting the Mixer to the LINE Input of an
amplifier.
These two jacks are for connecting to AUX input
of any amplifier or of a cassette recorder for
recording the program.
Audio output through a ¼” stereo jack for
headphone monitoring
18. EARTH Terminal
• Rear Panel Controls & Features
11
LINE
OUTPUT
1V
PRE OUT
200mV
HEADPHONES
FUSE 0.5AT
FUSE
240V ~ 50Hz
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
THIS EQUIPMENT MUST BE EARTHED.
DISCONNECT POWER SUPPLY CORD BEFORE
CHANGING FUSE OR REMOVING COVER.
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
12V DC
MX-15
AUX-1
100mV
MIC-10 MIC-7 MIC-4 MIC-1
AUX-2
100mV
AUX-3
(CD/TAPE)
500mV
MIC-11 MIC-8 MIC-5 MIC-2
MIC-12 MIC-9 MIC-6 MIC-3
RL
17
16 15
20 19
18
13 14
12
Caution
! The equipment must be earthed properly before operating it to avoid electric shock. A wire from the Earth
Terminal must be connected to either water pipe or to electrical earth for safe operation.
3
MX-15
-10
6
22
+10
6
8
4
0
4
8
-10
6
22
+10
6
8
4
0
4
8
BASS
TREBLE MASTER
LEVEL
POWER
MIC-4/AUX
MIC-3/TAPE MIC-2 MIC-1
UPA-750
PACASSETTE PLAYER
REW PLAY STOP/EJECT
PAUSE
TAPEAUX
MIC-3MIC-4
LO
HI
AC / 12V DC
MIC-3
MIC-2
MIC-1
MIC-4/AUX
0
2
46
10
-13 +3dB
0
-3
-8
8
6
10
8
0
2
4
6
10
8
0
2
4
6
10
8
0
2
4
6
10
8
0
2
4
FF
AUTO STOP
LINE
OUTPUT
1V
PRE OUT
200mV
HEADPHONES
FUSE 0.5AT
FUSE
240V ~ 50Hz
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
THIS EQUIPMENT MUST BE EARTHED.
DISCONNECT POWER SUPPLYCORD BEFORE
CHANGING FUSE OR REMOVING COVER.
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
12V DC
MX-15
AUX-1
100mV
MIC-10 MIC-7 MIC-4 MIC-1
AUX-2
100mV
AUX-3
(CD/TAPE)
500mV
MIC-11 MIC-8 MIC-5 MIC-2
MIC-12 MIC-9 MIC-6 MIC-3
RL
REC REW FF PLAY STOP/EJECT PAUSE
-10
6
22
+10
6
8
4
0
4
8
-10
6
22
+10
6
8
4
0
4
8
BASS
COUNTER
RESET
TREBLE
MASTER
TAPE/REC MIC-1 MIC-2
UCR-60
PACASSETTE RECORDER
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
AUTO STOP
999
LEVEL
POWER
AC / 12V DC
HEADPHONES
MIC-3/AUX
MIC-2
MIC-1
MIC-3/AUX
AUX
REC
ON
-15dB
- 8dB
- 3dB
0dB
+3dB
OFF
MON SPKR
MIC-3
ON
CASSETTE RECORDER
CASSETTE PLAYER
MICROPHONES
PLAY/PAUSE STOP
SKIP/SEARCH
REPEAT
MEMORY
TRACK OPERATION INDICATOR
PLAY REPEAT
PROGRAM
OPEN/CLOSE
COMPACT
DIGITALAUDIO
POWER
COMPACT
DISC
PLAYER
DIGITAL
CD PLAYER
TYPICAL MUSICAL PROGRAM
HEADPHONES
MONITOR AMPLIFIER
MONITOR SPEAKERS
®
COM 4 W 8 W
COM
70V
100V
36V
+
DC
INPUT
OUTPUT
SPA- 5000EM
200 mV 1V
CAUTION
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
PERSONNEL.THIS EQUIPMENT MUST BE
EARTHED.DISCONNECT POWER SUPPLY
CORD BEFORE CHANGING FUSE OR
REMOVING COVER. TO PREVENT FIRE OR
SHOCK HAZARD, DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
T8AL
240V~50Hz
FUSE
1000VA
BOOSTER AMPLIFIER
LINE
OUTPUT
1V
PRE OUT
200mV
HEADPHONES
FUSE 0.5AT
FUSE
240V ~ 50Hz
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED PERSONNEL.
THIS EQUIPMENT MUST BE EARTHED.
DISCONNECT POWER SUPPLYCORD BEFORE
CHANGING FUSE OR REMOVING COVER.
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
CAUTION
12V DC
MX-15
AUX-1
100mV
MIC-10 MIC-7 MIC-4 MIC-1
AUX-2
100mV
AUX-3
(CD/TAPE)
500mV
MIC-11 MIC-8 MIC-5 MIC-2
MIC-12 MIC-9 MIC-6 MIC-3
RL
CASSETTE RECORDER
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
F
F
O
N
WIRELESS MICROPHONES
PROGRAM SPEAKERS
TABLE MICROPHONES
ROVING MICROPHONES
MIC-1
MIC-1
0
2
46
8
10
MIC-2
MIC-2
0
2
46
8
10
MIC-3
MIC-3
0
2
46
8
10
BASS
CUT CUTFLAT FLAT
TREBLE MASTER
ON
MONITOR
POWER
SSB-60M
000
222
444666
888
10 10 10
MIC-4/AUX
MIC-4
0
2
46
8
10
HEADPHONES
TYPICAL OPEN CONFERENCE / CONVENTION
REC REW FF PLAY STOP/EJECT PAUSE
-10
6
22
+10
6
8
4
0
4
8
-10
6
22
+10
6
8
4
0
4
8
BASS
COUNTER
RESET
TREBLE
MASTER
TAPE/REC MIC-1 MIC-2
UCR-60
PACASSETTE RECORDER
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
0
2
46
10
8
AUTO STOP
999
LEVEL
POWER
AC / 12V DC
HEADPHONES
MIC-3/AUX
MIC-2
MIC-1
MIC-3/AUX
AUX
REC
ON
-15dB
- 8dB
- 3dB
0dB
+3dB
OFF
MON SPKR
MIC-3
ON
POWER AMPLIFIER
TRUSOUND PVT. LTD. C-89, Sector IV, Noida, Gautam Budh Nagar-201 301 (UP)
Regd. Office : 125E, Okhla Industrial Estate, New Delhi-110 020
Tel.: +91-120-4665665 Fax : +91-120-4665621
E-mail: [email protected]
0K/08/09/R1
Design and Specifications are subject to change without notice. • is a registered trademark of Ahuja Radios in India and other countries.
© Copyright Ahuja Radios, 2009. All rights reserved. Any unauthorized reproduction or use of logos, images or design elements is strictly prohibited by law.
No part of the compilation may be reproduced in any manner or translated without written permission.
PROGRAM SPEAKERS
• Typical Applications....
/
