Amperes Electronics MB2106 User manual
- Category
- Audio mixers
- Type
- 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 - MB 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 1/08
MB2106 / MB2112
MIXER AMPLIFIERS
www.ampereselectronics.com
instruction manual
Parts Identifications
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, Protect mode and 4 segment output level meter.
amperes
MB2106
POWER
POWER
AUDIO LEVEL
-
24V
-
24V
DC INPUT
+
24V
+
24V
22V
(4 ? )
SPEAKER OUTPUT
COM
100V
(83
?
)
70V
(41
?
)
120W (RMS)
MODEL NO : MB2120
POWER OUTPUT
REC OUT
CH1
CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V +/-10%
CH5CH6
CH1
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.
MICMICMICLINELINELINE
MIC : 2.85mV/ 1.5K?
LINE: 285mV/ 35K?
3
4
5
10
11
12
13
8
7
9
6
6. 24V DC Power Input
Input to battery bank for back up supply with 5A (MA2106) / 8A (MA2112) rating at full load.
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
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.
12. Mic / Line Input Jack
Ch.1 to 3 are inputs for mic signal ( balanced ) while Ch.4 is for balanced line input.
11. RCA Jack
For unbalanced line input sources such as CD player, etc.
10. Ventillation fan
The unit is cooled by dual speed temperature dependent fan. Please ensure adequate room for ventillation.
13. 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.
Placing the Unit
Place the unit in a well ventillated area, such as open rack or table top. A closed environment such as in cabinet is not
recommended.
Enclosed environment may cause the heat to build up within the unit, causing the heat sensor circuit to activate, thus
muting the amplifier and shall return to working condition when it is below the threshold temperature. This intermittent
muting indicates that the ventillation around the amplifier is poor and should be relocated elsewhere.
Take note the air intake area as shown in the diagram below. Do not block the air intake and outlet area.
air intake
ambient
air intake
ambient
outgoing air
hot
Application Example
amperes electronics
PAGE 4
Note :
1. Paging microphone can be with or 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.
-
24V
-
24V
DC INPUT
+
24V
+
24V
22V
(4 ?)
SPEAKER OUTPUT
COM
100V
(83
?
)
70V
(41
?
)
120W (RMS)
MODEL NO : MB2120
POWER OUTPUT
REC OUT
CH1CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V +/-10%
CH5CH6
CH1
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.
MICMICMICLINELINELINE
MIC : 2.85mV/ 1.5K?
LINE: 285mV/ 35K?
Speakers
100V line or 4 Ohm
minimum
Paging microphone
Dynamic / Condensor
microphone
Wireless Microphone
DC input for
back up supply
BGM input ( CD etc )
MB2006 / 2112 MIXER AMPLIFIER
Condensor microphone
shall be connected to
channel 1 only : 12V DC
phantom power is
available as an option.
PAGE 5
Connecting Paging Microphone
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
REAR OF MB2112
Input to channel 1
Switch off phantom power
phone jack
Connecting BGM Sources
22V
(4 ? )
SPEAKER OUTPUT
COM
100V
(83
?
)
70V
(41
?
)
REC OUT
CH1
CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V +/-10%
CH5CH6
CH1
PHANTOM
POWER
MICMICMICLINELINELINE
MIC : 2.85mV/ 1.5K?
LINE: 285mV/ 35K?
phone jack
either input
to connect to line input 4, kindly termi-
nate as unbalanced signal.
Select output level
either to mic or line in
correspondence to
input jack of the mixer
amplifier
22V
(4 ? )
SPEAKER OUTPUT
COM
100V
(83
?
)
70V
(41
?
)
REC OUT
CH1
CH2CH3CH4
AC 50 / 60HZ
MAINS : 230V +/-10%
CH5CH6
CH1
PHANTOM
POWER
MICMICMICLINELINELINE
MIC : 2.85mV/ 1.5K?
LINE: 285mV/ 35K?
REAR OF MB2106 / 2112
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 available
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
Phantom Power
amperes
amperes electronics
PAGE 6
Block Diagram
PHANTOM POWER SWITCH
Switch on when condenser microphone
is used. In normal usage, it is
recommended that it is switched off
CH 1 is provided with phantom power
Channel 1 is provided with switchable phantom
power of 12V.
LED LEVEL INDICATORS
24V DC
12V DC
70 / 100V line
speaker outputs
4 Ohm min
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
CONTROL
POWER SUPPLY CIRCUIT
AC input
24V DC batt
input
FUSE
MAINS SW
HEAT REGULATED
FAN
THERMISTOR
FAN CONTROL
CIRCUIT
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.
C H 1
C H 2
A C 50 / 6 0 H Z
M A IN S : 2 3 0 V + / -1 0 %
C H1
P H AN TO M
P O WE R
M ICM IC
PAGE 7
5. Power Switch
6. Speaker Zone Selector
100V line ouput can be channeled into 3 output zones and each zone can be selected via these switches
with ALL CALL. Alternatively, selected can also be done via remote paging microphone, ie. PM1060.
8. Circuit Breakers
Resettable circuit breakers for ac and dc inputs of 5 and 10A respectively.
Technical Specifications
Summary of Features
Power requirement
24V DC requirement
Pwr consumption (load) ac
Pwr consumption ( s/by )
Input channel
Input sensitivity / impedance
Input connection
Tone controls
Rated output ( rms )
Outputs
Frequency response
Protections
Indicators
Cooling system
Dimensions (WxHxD)
Weight ( kg )
230 / 240 V ac ( 24V DC backup )
5 A / 8 A
1.3 A / 2.2 A
0.4 A ( 240 V ac )
3 x mic ; 1 x line ; 2 x RCA
Mic : 2.45 mV / 1.5 K balanced
Line : 245 mV / 35 K unbalanced
RCA : 245 mV unbalanced
Phone jack balanced : mic input 1 to 3
Phone jack balanced : line input 4
RCA stereo : line input 5 and 6
Bass ( 150 Hz ) ; Treble ( 10 KHz )
60W / 120W 100V line
4 Ohm ; 70 ; 100V line ; line output
60 ~ 15 KHz
Thermal, momentary output short circuit
5 segment level ; power
Dual speed fan with heat sensing
88 x 424 x 300 mm
8.4 / 10.5 kg
MB2106 / MB2112
6 input channels for mic and line signals
Individual input level control with master out
Tone and bass controls
70 / 100V line output with aux 4 ohm speaker terminal
Thermal, short circuit protections
Ventilation via thermal controlled fan
AC / DC operation for fixed and uninterrupted operation
12V DC switchable phantom power for mic input 1
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.
WARRANTY CONDITIONS
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
DISCLAIMER
By :
AMPERES ELECTRONICS
www.ampereselectronics.com
Made In Malaysia
PAGE 8
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Amperes Electronics MB2106 User manual
- Category
- Audio mixers
- Type
- User manual
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