Amperes MC2112 User manual

Thank you for choosing another quality product from Amperes Electronics.
Due to overwhelming demand for simple and affordable mixer amplifiers,Amperes has created a new version
of mixer amp series - MC series of mixer amplifiers which offers two variants of 60 and 120W 100V line
output. They shall be able to cater for small installations such as shops, meeting room, lecture hall and many
other applications.
Spend some time to read through and we believe that this product shall be able to meet your demanding
requirement with affordable pricing and uncompromised features and quality.
version 1/12
MC2112
MIXER AMPLIFIERS
www.ampereselectronics.com
instruction manual

amperes electronics
PAGE 2
2
2. Mains Switch
3. Input Level Controls
Individual control knobs for input 1 to 6.
4. Tone Controls
Bass and treble controls for mixed signals.
5. Master Control
Master volume control for mixed signal ; speaker and line outputs.
Mains switch for ac input. Switching off the switch shall not disconnect the DC supply to the unit if it is
connected to back up battery. It is recommended that the DC back up is connected to the battery
charger's EM output instead of directly to the batteries. This shall prevent idle drain of the battery bank.
1. LED Indicators
LED indicators for Power and 4 segment output level meter.
amperes MC2112
POWER
POWER
AUDIO LEVEL
120W MIXER AMPLIFIER
22V
(4 )
SPEAKER OUTPUT
COM
100V
(83 )
70V
(41 )
120W (RMS)
MODEL NO : MC2112
POWER OUTPUT
REC
LINE OUT
CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V / 240V
CH5CH6
CH2
PHANTOM
POWER
CAUTION
DO NOT OPEN
RISK OF ELECTRICAL SHOCK
WARNING !
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
MICMICLINELINE
LINE
MIC
MIC
345
912
11
10
8
7
6. Mic Input Jack
Ch 1 is input for Mic Signal (balanced).
7. Speaker Output Terminal
Outputs available are for 4 ohm, 70 and 100V line. Multiple output connections are allowed provided that
they do not exceed the total load rating of the model.
1
MIC 1
6
13
Parts Identifications

PAGE 3
8. REC Output
Unbalanced line level output for connection to external link. The output level is independent of master
volume.
9. AC input terminal
Supply of 220 ~ 240V ac via fused IEC connector.
11. Mic / Line Input Jack
Ch.2 to 4 are inputs for mic signal ( balanced ) while selection Mic line input
10. RCA Jack
For unbalanced line input sources such as CD player, etc.
12. Phantom Power Switch
12V DC phantom power is available for input channel 1 and 2, which is suitable for connection to
condenser microphones. For normal mic inputs, it is recommended that the phantom power feature is
turned off.
Ensure suitable condensor microphone is used which could operate at 12V DC.
13. Mic / Line Level switch for Ch 4
Inputs to the unit can be either mic or line level. Select the required input type by using these switches
and plug the input source to the appropriate jack. Stereo phone jack for balanced mic input whereas
the RCA jack is for music source unbalanced line input. It is recommended that at any one time, only
one type of input source is connected to the amplifier.

amperes electronics
PAGE 4
Note :
1. Paging microphone shall be without zone selection.
2. Speaker output connected to speakers with matching transformer (100V line out ) or without
transformer of 4 Ohm. Total output shall not exceed the specified rating.
8 Ohm Speakers or
100v Speaker with
Matching Trans
Paging
Mic
Dynamic / Cond.
Microphone
stereo
CD1001
AC 50 / 6 0 H Z
M A IN S : 23 0 V +/-1 0 %
M P 3 / CD PL A Y E R / T U N E R
C D 1 0 0 1
Another Quality Product From
AMPERES ELECTRONICS
LEFT RIGHT
AUDIO OUT RISK OF ELECTRICAL SHOCK
DO NOT OPEN
THIS UNIT MUST BE EARTHED ANTENNA
AC 50 / 6 0 H Z
M A IN S : 23 0 V +/-1 0 %
M P 3 / CD PL A Y E R / T U N E R
C D 1 0 0 1
Another Quality Product From
AMPERES ELECTRONICS
LEFT RIGHT
AUDIO OUT RISK OF ELECTRICAL SHOCK
DO NOT OPEN
THIS UNIT MUST BE EARTHED ANTENNA
22V
(4 )
SPEAKER OUTPUT
COM
100V
(83 )
70V
(41 )
120W (RMS)
MODEL NO : MC2112
POWER OUTPUT
REC
LINE OUT
CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V / 240V
CH5CH6
CH2
PHANTOM
POWER
CAUTION
DO NOT OPEN
RISK OF ELECTRICAL SHOCK
WARNING !
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
MICMICLINELINE
LINE
MIC
MIC
Application Example

PAGE 5
External paging desk ( eg. Amperes PM1000 ) can be connected to the unit either at mic or line input phone jack,
using 1/4” stereo phone jack.
The diagram below illustrates the connection of Amperes PM1000 paging desk with zone selection :
AMPERES PM1000 PAGING DESK
FRONT OF MC2112
Input to channel 2
Switch off phantom power
phone jack
Select output
level either to mic
in correspon-
dence to input
jack of the mixer
amplifier
REAR OF MC2112
RCA jack
AM / FM tuner / CD player
or any other music source with
line output
Though inputs to the mixer amplifier are in
stereo mode, the output shall only be avail-
able in mono.
Single connections of RCA jack is allowed but
if the music output from player is in stereo
mode, it is advisable to connect both L and R
to the mixer amplifer.
PHONE JACK
TIP : +VE / HOT SIGNAL
RING : -VE / COLD
SLEEVE : GROUND / SCREEN
REC
LINE OUT
CH2CH3CH4
CH5CH6
CH2
PHANTOM
POWER
MICMICLINELINE
LINE
MIC
MIC
REC
LINE OUT
CH2CH3CH4
CH5CH6
CH2
PHANTOM
POWER
MICMICLINELINE
LINE
MIC
MIC
MIC 1
Input 4 can be either mic
or line level. Select the
type by using this switch.
Balanced signal pin configuration of phone jack.
mic
Connecting Paging Microphone
Connecting BGM Sources

amperes
amperes electronics
PAGE 6
PHANTOM POWER SWITCH
Switch on when condenser microphone is used.
In normal usage, it is recommended that it is
switched off
CH 2 is provided with phantom power
Channel 2 is provided with switchable
phantom power of 12V.
LED LEVEL INDICATORS
+33 V DC
70 / 100V line
speaker outputs
4 Ohm min
output
STEP UP
TRANS
AMPLIFIER
CIRCUIT
Inputs Ch
1,2,3 Mic -
Phone jack
Inputs Ch 5,6
line - RCA
stereo input
LEVEL
CTRL
12V Phantom
Power
MIXER CIRCUIT
TONE
CONTROLS
POWER SUPPLY CIRCUIT
AC input
FUSE
MAINS SW
The above drawing illustrates general functional block diagram in the construction of the unit and
may not represent the final actual circuit. It is not recommended that the above diagram to be used
for servicing any faulty unit. Contact our service centre for any repair works.
REC
LINE OUT
CH2CH3CH4
CH2
PHANTOM
POWER
MICMIC
LINE
MIC
MIC
Input Ch 4
mic
Line
slide swicth
-33 V DC
Phantom Power
Block Diagram

PAGE 7
Rating
Operating Voltage
24V DC requirement
Current (Load / Standby)
Input channel
Input phantom power
Input connection
Tone controls
Outputs
Output selection
Frequency response
Protections
Indicators
Cooling system
Dimensions (WxHxD)
Weight ( kg )
120W 100V line
230 ~ 240V ac
-
2.2A / 0.4A
6:4 Mic phone jack, 2 line selectable (RCA)
Mic 1: 12V DC
Mic : 2.45 mV / 600 Ohm balanced
Line : 245 mV / 30 K Ohm unbalanced
RCA : 495 mV unbalanced
Bass ( 150 Hz ); Treble ( 10 KHz ) +- 3 dB
40 Ohm, 100V line
-
200 ~ 18 KHz
Thermal, short circuit, AC and DC fuse
AC mains, clip, audio input level
Convection
424 x 88 x 180 mm
8.65 kg
MC2112
6 input channels for mic and line with phantom power for input 1
Tone and bass controls
70 / 100V line output with 4 ohm terminal with audio line output
Short circuit, thermal protections
Fan-less ventilation for silent operation
Summary of Features
Technical Specifications

Only Amperes Electronics Service Centres are allowed to make warranty repairs : a list of
Amperes Electronics Service Centres may be asked for by the purchaser or send directly to
Amperes Electronics Sdn Bhd at 70 Jalan Industri PBP 3, Tmn Perindustrian Pusat Bandar
Puchong, 47100, Puchong, Selangor, Malaysia. It may also be sent to its master distributor in the
country the product is purchased. This warranty is not valid if repairs are performed by
unauthorized personnel or service centres.
This warranty covers only repairs and replacement of defective parts ; cost and risks of
transportation as well as removal and installation of the product from the main system are for the
account of the purchaser. This warranty shall not extend to the replacement of the unit.
This warranty does not cover damages caused by misuse, neglect, accident of the product as well
as using the product with power supply voltage other than shown on the product, or any other
power supply source / adaptor not recommended by the manufacturer.
This warranty does not cover damages caused by fire, earthquakes, floods. lightning and every
cause not directly related to the unit.
This warranty does not include any indemnity in favor of the purchaser or the dealer for the period
out of use of the unit; moreover the warranty does not cover any damages which may be caused
to people and things when using the product.
This warranty certificate is valid only for the described product, and is not valid if modifications are
made on this certificate or on the identification label applied on the product.
This warranty covers all the material and manufacturing defects and is valid for a period of 12
months from the date of purchase or for a longer period in countries where this is stated by a
national law. In this case, the extension is valid only in the country where the product is purchased.
Amperes Electronics Sdn Bhd is not obliged to modify previously manufactured products under
warranty if the design changes or improvements are made.
Information contained in this manual is subject to change without prior notice and does not represent a
commitment on the part of the vendor. AMPERES ELECTRONICS SDN BHD shall not be liable for any
loss or damages whatsoever arising from the use of information or any error contained in this manual.
It is recommended that all services and repairs on this product be carried out by AMPERES
ELECTRONICS SDN BHD or its authorized service agents.
AMPERES series must only be used for the purpose they were intended by the manufacturer and in
conjunction with this operating manual.
AMPERES ELECTRONICS SDN BHD or its distributors cannot accept any liability whatsoever for any loss
or damages caused by service, maintenance or repair by unauthorized personnel, or by use other than that
intended by the manufacturer.
amperes
By :
AMPERES ELECTRONICS
www.ampereselectronics.com
Made In Malaysia
PAGE 8
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