Amperes Quantum Series User manual

PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
Thank you for choosing another quality product from Amperes Electronics.
VER 7 / 2022
Quantum QP2000 Series of power amplifiers are the latest generation of power packs that had been developed through years
of experience, countless feedbacks and limitless fine tuning of its predecessors, thus offering a new and unique audio
amplification product.
QP2000 series are available in the power range of 125, 250, 275 and 500W 100V line ratings with 2 hu height. Control parts had
been made contemporary with digital settings via front panel or through custom built software. Various and known protection
features are incorporated such as auto fault sensing (AFS), in built standby amplifier changeover, temperature sensing and
many more.
You shall be very certain that this is the final product you would ever search. We make it available without you paying high price
for a premium product that works exceeding your expectation.

Parts Identification
3
45679
1
10 12
11
8
Front View
2
1. POWER SWITCH
Mains ac power switch. The unit operates with 220 - 240V ac.
2. LCD DISPLAY
2 X 18 character LCD displaying units parameters and programming instructions.
3. CONTROL BUTTONS
Buttons for various controls and setting up the unit.
4. GROUND LIFT SWITCH
Switch to isolate or link signal ground to equipment body.
PAGE 2 QP2000 | Quantum Series Power Amplifiers
5. RS485 DATA LINK
RS485 data port for parameter reading or controls from PC or external triggering panel. For PC link, a USB-RS485
converter shall be required whereas the software is available free.
6. AMP. FAULT CONTACT
A dry contact shall be available if the amplifier is detected as faulty. This allows activation of external changeover or
enable external notification panel.
7. AUDIO INPUT / LINK SIGNAL
8. VENTILATION FAN
It is a variable speed temperature dependant fan with air blows from inside out. The fan can be set to auto or always
on mode. See “Setting Up the Unit” in the following sections.
Rear View
PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
The amplifier accepts balanced audio signal and a link Phoenix connector is available to connect in parallel to the
next amplifier. The output link signal is buffered.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBY CHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATE VENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMP FAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.

QP2000 | Quantum Series Power Amplifiers PAGE 3
Parts Identifications ( con’t )
T
9. AC MAINS INPUT
Operating voltage is 220 to 240V ac ; 50 hertz. Use suitable fuse for replacement.
Recommended Fuse Replacements :
10. DC INPUT TERMINAL
24V DC back up supply from batteries are connected to these connectors. Use suitable cable size to avoid overheating
of cables.
11. AUDIO LINE OUTPUTS
Outputs from the units are available in 100 / 70V line and also for 4 Ohm speakers. At any one time, connect only one terminal.
12. STANDBY AMPLIFIER CONNECTOR
QP2000 series are equipped with Auto Fault Sensing feature with Standby Fault Changeover relay incorporated.
Outputs from a standby unit is connected to these terminals and connected to the next duty pack in series. Please
refer to the section “ Connecting Standby Amplifier ”.
QP2125 QP2250 QP2375 QP2500
Slow blow fuse is recommended.
5A 6.3A 6.3A 6.3A

PAGE 4 QP2000 | Quantum Series Power Amplifiers
General Schematic Diagram
Note :
Changeover :
Duty amplifier with higher priority for changeover must be placed nearest to the standby unit. ie. first output
connection from standby amplifier must be connected to this unit.
Standby fault changeover only available at 100V line outputs. Thereby to utilise this feature, speaker
connections must be terminated at 100V output terminals.
If the system consists of various ratings of power amplifiers, always allocate standby unit with the highest
power rating, to avoid overloading in the event that changeover takes place.
An example of application with
single source to amplifiers, with
one unit being a standby unit.
For Uninterrupted Paging System
or Matrix application, please
contact us for further details.
Application of PC monitoring of
amplifiers is optional.
2
MENU
am p e r e s
O
I
POWER
QP2500
UP
DOWN
MENU
am p e r e s
O
I
POWER
QP2500
UP
DOWN
MENU
am p e r e s
O
I
POWER
QP2500
UP
DOWN
MENU
am p e r e s
O
I
POWER
QP2500
UP
DOWN
5 12 1
ZS
OVERRIDE
21 3 54
SPEAKER ZONE SELECT
6 7 8 9 10 1211
CALL
ALL
amp e re s
PM1120 PAGING MIC
MX2222 Mixer
EP1200 E/M Mic
QP2000 Amplifier
Duty Unit 1
Duty Unit 2
Duty Unit 3
Standby Unit
Zone Selector
TO SPEAKERS
USB-RS485
Converter
PC with QPM
Software
INPUTS
line audio
zone
triggering
100V
100V
100V
100V
line
RS485
data
Optional
In PC monitoring, each
power pack must be
addressed. Up to a max of 16
nos of power packs can be
monitored.
To avoid signal distortion in
looping the audio, usage of
signal distributor (DA2208) is
strongly recommended
PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
PUBLIC ADDRESS POWER AMPLIFIER ● QUANTUM POWER SERIES
EP 1200
amperes
EMERGENCY PAGING PANEL
MIC
SIREN SWITCH
SIREN
FIRE
EMERGENCY / SIREN ACTIVE
O
I
amperes
MX2222
POWER
OFF SELECT
TUNER
CD
CASS
OFF
MASTER
MUSIC SOURCE
SIG IN
BASS
MAXMIN
EXTINPUT
MAX MAXMIN
SOURCE
MIN
SIG IN
CHIME MIXER TREBLE
MAXMIN
TONE CTRL
CH5 CH6CH4
SIG INSIGIN SIG IN
MAXMIN MAXMIN MIN
CH3CH1 CH2
SIG INSIG IN
MAXMIN MAXMIN MAXMIN MAX
AUX
SIG IN

QP2000 | Quantum Series Power Amplifiers PAGE 5
Connecting The Unit
1
Audio from pre-amp
mixer ( balanced line )
audio out
link
DUTY AMPLIFIER UNIT
DUTY AMPLIFIER UNIT
STANDBY AMPLIFIER
24V DC
Fr Battery
Bank
100V Line Out
To Zone Selector
100V
Out
Standby Unit
100V Line Out
Standby 100V
Line Links
note on the link
connections for
standby amplifier
Note 1 :
Loop the audio signal to a maximum of 6 to avoid signal distortion. In case that more amplifiers are required in
the system, use a signal distribution amplifier.
Note 2 :
Always ensure cable size, particularly the incoming cable from battery is sufficient enough to cater for the load
during battery takeover when the mains failed. As a rule of thumb, a 2.5mm cable shall not be linked to more
than 6 power packs.
Note 3 :
AFS only applies to 100V line output. Should you decide to turn of the feature utilising the internal changeover
relay, always connect the output at 100V line terminals. At any one time, never use different outputs simultane-
ously.
Note 4 :
The amplifier that need to be accorded top priority for changeover should be connected first to the standby
amplifier output. If the changeover occurs at the first unit, the remaining shall not be provided with back up
output.
In order for changeover to take place, AFS feature must be turned on.
23
4
A connection diagram for basic installation with single input source from pre-amplifier mixer.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBY CHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATE VENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMP FAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBY CHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATE VENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMP FAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
24V DC
link
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBY CHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATE VENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMP FAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.

PAGE 6 QP2000 | Quantum Series Power Amplifiers
Connecting The Unit - Matrix Paging
Note :
In matrix system, each amplifier shall be fed with different audio signal ; thereby AX3800 standby amplifier changeover unit
shall be used in the setup with the configuration shown above.
Auto fault sensing feature at QP2000 need to be turned off and fault sensing tasks shall be performed by AX3800.
If number of duty amplifiers are more than 8, add AX3800 accordingly.
AUDIO FROM MESSAGE
PLAYER / RECORDER
AUDIO INPUTS FROM MXP2288
MATRIX CONTROLLER
audio to amplifier inputs
( balanced line )
100V line outputs
QP2000 - Standby
Duty 4
Duty 3
Duty 2
Duty 1
EP1200
REMOTE
PAGINGMIC
M P 2288
12 x 8 ETHERNET MATRIX CONTROLLER
x
BALANCED CHANNEL OUTPUTS
BALANCED INPUTS ( XLR - MIC LEVEL / PHONE JACK - LINE LEVEL )
CH 6CH 5CH 4CH 3CH 2CH 1 CH 8CH 7
CH 8CH 7CH 6CH 5CH 4CH 3CH 2CH 1
CASCADEOUT
EP1200
CONNECTION
24VDC IN ; 1 A
+ -
REMOTE
PANEL1
REMOTE
PANEL2
CH4CH1 CH2 CH3
COM
NO
COM
NO
COM
NO
COM
NO
CONFIGURABLEREMOTE TRIGGER
EM/ AC
CONT(NO)
RS485
A B
MATRIXCASCADING TERMINALS
(MAX STACKS : 12 UNITS )
CASCADEIN
ETHERNET
PORT
MESSAGEPLAYER
IN( LINE BAL )
From
AX3800
From
AX3800
From
AX3800
AX3800 mk II
To Amp Duty 3
To Amp Duty 2
To Amp Duty 1
1 2 3 4 5 678
ON
1 2 3 4 5 678
ON
CASCADE
INPUT OUTPUT
AMP.BYPASS ADD
LINK
OPEN
IN OUT IN OUT
AMP1 AMP2
IN OUT IN OUT
AMP3 AMP4
IN OUT IN OUT
AMP5 AMP6
IN OUT IN OUT
AMP7 AMP8
IN
STDBY
DC 24V
- +
+IN
GND
-IN
+OUT
GND
-OUT
AMP1
+IN
GND
-IN
+OUT
GND
-OUT
AMP2
+IN
GND
-IN
+OUT
GND
-OUT
AMP3
+IN
GND
-IN
+OUT
GND
-OUT
AMP4
+IN
GND
-IN
+OUT
GND
-OUT
AMP5
+IN
GND
-IN
+OUT
GND
-OUT
AMP6
+IN
GND
-IN
+OUT
GND
-OUT
AMP7
+IN
GND
-IN
+OUT
GND
-OUT
AMP8
+OUT
GND
-OUT
STDBY
A B
1 8
16
8
4
2
1
32
64
128
FAULT
NO
CONTACT
RS 485
LINK
OPEN LINK OPEN LINK OPEN LINK OPEN LINK OPEN LINK OPEN
BALANCE AUDIO SIGNAL
AMPERES ELECTRONICS
amperes
R
Model : AX3800
MADE IN MALAYSIA
AMP.CHANGEOVER
DC input 24V Max. 500mA
MKII
amperes electronics
another quality product from
Outputs from AX3800 to zone speakers not
shown
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWERAMPLIFIER
500W 100V
RISKOF ELECTRICALSHOCK
DONOT OPEN
CAUTION
RS485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCETHE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSETHIS
EQUIPMENTTO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWERAMPLIFIER
500W 100V
RISKOF ELECTRICALSHOCK
DONOT OPEN
CAUTION
RS485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCETHE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSETHIS
EQUIPMENTTO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWERAMPLIFIER
500W 100V
RISKOF ELECTRICALSHOCK
DONOT OPEN
CAUTION
RS485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCETHE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSETHIS
EQUIPMENTTO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWERAMPLIFIER
500W 100V
RISKOF ELECTRICALSHOCK
DONOT OPEN
CAUTION
RS485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCETHE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSETHIS
EQUIPMENTTO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWERAMPLIFIER
500W 100V
RISKOF ELECTRICAL SHOCK
DONOT OPEN
CAUTION
RS485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCETHE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSETHIS
EQUIPMENTTO RAIN OR MOISTURE.

QP2000 | Quantum Series Power Amplifiers PAGE 7
Connecting The Unit - Uninterrupted Paging
AUX CD
amperes
PM SERIES PAGING MIC
MX2222
MIXER
BGM Inputs
Paging audio output BGM audio output
Standby
Duty 1
Duty 2
QP Amplifiers for Paging
QP Amplifiers for BGM
Standby
Duty 1
Duty 2
ZS5602
SPEAKER ZONE SELECTOR
TO SPEAKERS
Paging Output BGM Output
Note :
In uninterrupted paging setup, two sets of amplifiers are used; Paging and BGM. Two standby unit shall be required
to serve each set of amplifiers. Auto fault feature need to be turned on at duty units.
..
AC 230V 50/60HZ
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOATFRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
+ 24V
- 24V
+ 24V
- 24V
100V
(20
Ω
)
70V
(10
Ω
)
45V
(4
Ω
)
COM
+ OUT
- OUT
+ IN
- IN
STANDBYCHANGOVERSPEAKER OUTPUTDC INPUT
FLOAT
FRAME
GROUND
GROUND LIFT
ADEQUATEVENTILATION
THIS EQUIPMENT REQUIRES
DO NOT BLOCK VENT
QP 2500
POWER AMPLIFIER
500W 100V
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
CAUTION
RS 485 AMPFAULT
COM NOA B
Another Quality Product From
AMPERES ELECTRONICS
WARNING !
BALANCED INPUT
1V / 10K
Ω
LINK
IN +
Out +
GND
Out -
IN -
INPUT
50/60 Hz
AC 220 - 240V
MADE IN MALAYSIA
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.

PAGE 8
Setting The Unit
Upon powering up the unit, the display shall
appear as shown, Initialising and into ready
mode.
Displaying firmware version of
the unit
Showing unit address in bracket,
volume level and temperature
To begin setting, press the MENU button. Use Next
and Prev button to shift around.
U P
M E N U
D O W N
1.0 CHANNEL SETTING
Menus available are for :
1. Channel setting
2. Cascading / setting unit address
3. Fan and AFS setting
4. Factory reset
Press MENU and menu 1
Channel setting will appear.
To select sub menu for
volume adjustment, select
1.1
Press MENU button and an
asterisk would appear
Use UP and DOWN key to
adjust volume level
To confirm the value, press
MENU button.
Use UP / DOWN button to
select the next sub menu
To select sub menu for
bass level, press MENU
and asterisk would appear
Use UP and DOWN key to
adjust volume level
To confirm the value, press
MENU button.
Use UP / DOWN button
to select the next sub
menu
To select sub menu for
treble level, press MENU
and asterisk would
appear
Use UP and DOWN key
to adjust volume level
To confirm the value,
press MENU button.
Use UP / DOWN button
to return to Sub Menu 1.
Select Sub Menu 1.4 and
press MENU.
Use UP and DOWN
button to select sub menu
QP2000 | Quantum Series Power Amplifiers
Up
Menu
Down

QP2000 | Quantum Series Power Amplifiers PAGE 9
Setting The Unit
2. CASCADE
Select Sub Menu 2 for unit addressing
Use UP and DOWN button to select
address number
Press MENU button to confirm
Setting the address is used only when all
the amplifiers at to be linked to remote PC
for monitoring. Software is available free,
but an USB-RS485 interface shall be
required.
Among parameters that can be monitored
are volume, temperature, fan and amp
status.
Up to 32 units can be linked together for
monitoring.
3. SETTING
Select Menu 3
Use UP and DOWN button to select
Sub Menu 3.1 for AFS feature
Press MENU button to select the Sub
Menu and use UP / DOWN button to
turn On or Off.
This setting shall be for Auto Fault Sensing
(AFS) and fan control
With Auto Test feature on, Pilot Tone of
20KHz would be generated, and the outputs
shall be monitored. The absence of the tone
shall indicate the amplifier module or the
unit is faulty.
At faulty condition, a dry contact shall be
activated for external triggering. Similarly, a
fault condition data would be sent out via
RS485. Once confirm, press MENU and will
revert to Sub Menu. Use UP and
DOWN button to select other Sub
Menu
Use UP and DOWN button to select
Sub Menu 3.2 for fan control
Press MENU button to select the Sub
Menu and use UP / DOWN button to
turn On or Off.
Once confirm, press MENU and will
revert to Sub Menu. Use UP and
DOWN button to select other Sub
Menu
Fan can be set to Auto mode, which the fan
would be automatically turned on upon
reaching 29 Deg C at the heatsink and
would run at temperature dependant speed.
Another mode is to turn on the fan, running
continuously.
We recommend that the fan to be set at
Auto mode.
To exit this sub menu, select Back to
Sub Menu 3.

PAGE 10 QP2000 | Quantum Series Power Amplifiers
Setting The Unit
2
4. INFO
Select Sub Menu 4
Output voltage from 100V line terminal
This menu provides information on
various parameters such as input and
output level.
For update Firmware to new version
Return to main menu.
5. SYSTEM Select Sub Menu 5, press MENU to enter
Firmware version
This menu provides information such as
system firmware version and would
enable the unit to reset to factory setting,
erasing all previously set data.
For resetting the unit to factory default.
6. EXIT
Select Sub Menu 6, press MENU to enter
Use UP / DOWN button to toggle
between Yes and No and press MENU
button to exit.
Use this sub menu to exit setting mode.
For service purpose : the voltage prior to
step up transformer
Signal input value
Output value in dB

Technical Specifications
Summary of Features
Digital Setting for various parameters with LCD display
Auto fault sensing ( AFS ) with fault contact
Built in standby amplifier changeover
RS485 interface for monitoring and remote setting
Tone and bass controls
Auto fan speed controls
Thermal, fuse, output short circuit protections
High efficiency with low current consumption
QP2250
447VA (1.7A)
10.6A
0.7A
250W
31.6V
40 Ohm
12.70 kg
14.60 kg
QP2125
294VA (1.1A)
5.9A
125W
22.3V
80 Ohm
11.60 kg
13.50 kg
QP2375
749VA (2.9A)
16.7A
375W
38.7V
27 Ohm
16.50 kg
18.00 kg
QP2500
873VA (3.3A)
19.6A
0.9A
500W
44.8V
20 Ohm
18.05 kg
19.90 kg
220 - 240V ac or 24V DC back up supply
1V / 10 K ohm; balanced via XLR female
-40 to 0 dB
70 Hz - 15 KHz @ 1 KHz +/- 3 dB
>70 dB @ 1 KHz, 1V
<0.18 %
Thermal, Short circuit, Overload, Fuse
75 Deg C
Auto temperature controlled fan speed with auto on
LCD with temp, audio level and address
RS485, 19.2 kbps
Internal Pilot Tone, Detection at 15 to 25 secs at 10 secs intervals
Standby amplifier relay activation, fault dry contact
482 x 88 x 335 mm
Power requirement
Power consumption (240V AC)
Current consumption (24V DC)
Standby current (24V DC)
Input signal
Input gain control
Rated output (100V, RMS)
4 ohm output voltage
Output impedance (max load)
Frequency response
S/N ratio
THD + N
Protections
Cut off temperature
Cooling system
Indications
Communication
Fault sensing
Fault detection response
Dimension (W x H x D)
Net Weight (kg)
Gross Weight
QP2000 | Quantum Series Power Amplifiers PAGE 11
Remote monitoring through PMX II LAN via iPX5500 Comm. Box
Note:
The above specifications are correct at time of printing but subjected to changes without prior notice due to product
improvements.

Technical Specifications
Summary of Features
Digital Setting for various parameters with LCD display
Auto fault sensing ( AFS ) with fault contact
Built in standby amplifier changeover
RS485 interface for monitoring and remote setting
Tone and bass controls
Auto fan speed controls
Thermal, fuse, output short circuit protections
High efficiency with low current consumption
QP2250
447VA (1.7A)
10.6A
0.7A
250W
31.6V
40 Ohm
12.70 kg
14.60 kg
QP2125
294VA (1.1A)
5.9A
125W
22.3V
80 Ohm
11.60 kg
13.50 kg
QP2375
749VA (2.9A)
16.7A
375W
38.7V
27 Ohm
16.50 kg
18.00 kg
QP2500
873VA (3.3A)
19.6A
0.9A
500W
44.8V
20 Ohm
18.05 kg
19.90 kg
220 - 240V ac or 24V DC back up supply
1V / 10 K ohm; balanced via XLR female
-40 to 0 dB
70 Hz - 15 KHz @ 1 KHz +/- 3 dB
>70 dB @ 1 KHz, 1V
<0.18 %
Thermal, Short circuit, Overload, Fuse
75 Deg C
Auto temperature controlled fan speed with auto on
LCD with temp, audio level and address
RS485, 19.2 kbps
Internal Pilot Tone, Detection at 15 to 25 secs at 10 secs intervals
Standby amplifier relay activation, fault dry contact
482 x 88 x 335 mm
Power requirement
Power consumption (240V AC)
Current consumption (24V DC)
Standby current (24V DC)
Input signal
Input gain control
Rated output (100V, RMS)
4 ohm output voltage
Output impedance (max load)
Frequency response
S/N ratio
THD + N
Protections
Cut off temperature
Cooling system
Indications
Communication
Fault sensing
Fault detection response
Dimension (W x H x D)
Net Weight (kg)
Gross Weight
QP2000 | Quantum Series Power Amplifiers PAGE 11
Remote monitoring through PMX II LAN via iPX5500 Comm. Box
Note:
The above specifications are correct at time of printing but subjected to changes without prior notice due to product
improvements.