Quantum Audio QRA2300 User manual

LIMITED WARRANTY
3154-124-659:xaF3624-824-659:leT
ten.oiduamutnauq.www
MOSFET POWER AMPLIFIERS
tel: [phone] fax: [phone]
www.quantumaudio.net
Quantum Audio warrants any products purchased in the U.S.A.
from an authorized Quantum Audio dealer. All products are warranted
to be free from defects in material and workmanship under normal use
and service for a period of one (1) year. This warranty applies to the
original purchase only.
Quantum Audio will either repair or replace (as its option) any
unit that has been found to be defective and under warranty provided
the defect occurs within the one (1) year warranty period.
This limited warranty does not extend to units have been
subjected to misuse, abuse, neglect, or accident. In Quantum Audio’s
judgment, products that show evidence of having been altered, modi-
fied, or serviced without Quantum Audio’s authorization, will be
ineligible under this warranty.
To obtain warranty service please contact your retailer or visit
our website at www.quantumaudio.net for more details.
QRA2300 - QRA2400.4 - QRA3600.4
QRM1500 - QRM2500 - QRM3000 - QRM4000 - QRM5000

1
Congratulations on your purchase of a Quantum AudioTM state-of-the-art power amplifier.
oiduAmutnauQafonoitcelesruoY TM car audio product indicates a true appreciation of fine
musical reproduction. Whether adding to an existing system or including your Quantum
AudioTM amplifier in a new system, you are certain to notice immediate performance
benefits.
A power amplifier’s performance is only as good as its installation. Proper installation will
maximize the system’s overall performance. It is recommended that you have our
product installed by an authorized Quantum AudioTM . reliater . However, if you decide to
install it yourself, please carefully read through this manual and take your time to do a
quality installation.
Due to continuing product improvements and possible manual revisions, we recommend
checking our website for latest product information at www.quantumauio.net.
Exposure to high power sound system can cause hearing loss or damage.
Listening to your system at loud levels while driving, will impair your ability to
hear traffic sounds and emergency vehicles. Use common sense when listening
to your system.
IMPORTANT! Before making any connections, disconnect the car’s battery until
the installation is completed to avoid possible damage to the electrical system.
Serial # Model #
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2
Take this time to attach your sales receipt to the manual and put it in a safe place. In case
of any unforeseen reason this product may need warranty service, your receipt will be
necessary to establish purchase date.
INTRODUCTION SAFETY PRECAUTIONS
KEEP YOUR SALES RECEIPT
RECOMMENDATION
WARNING

34
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amplifiers in the system.
Power Fusing
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Adjustable Input Sensitivity
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QRA2400.4
QRA3600.4
QRM1500
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Thermal Protection
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QRM1500, QRM2500, QRM3000, QRM4000 and QRM5000. The QRA2300, QRA2400.4
erutaef a variable saretlifssapwol well as a high pass filter.
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FEATURES AND BENEFITS
-2 Ohm Stereo, 4 Ohm Bridged
QRA2300 -2 Ohm Stereo, 4 Ohm Bridged
-2 Ohm Stereo, 4 Ohm Bridged
-2 Ohm Mono
QRM2500 -1 Ohm Mono
QRM3000 -1 Ohm Mono
QRM4000 -1 Ohm Mono
QRA3600.4
QRM5000 -1 Ohm Mono
Q-Link Capability
The Quantum Audio QRM3000 , QRM4000 and QRM 5000 have an internal linking
circuit that allows you to link two like model amplifiers so that you can double your
output power to a single load.
When linking two like amplifiers they are split up into master and slave units.
The master amplifier becomes the main control for all input signals and gain
controls.

56
Before you start the installation, it will be necessary to find a mounting location for the
amplifier. Find a location in which the amplifier will receive adequate ventilation in order
to dissipate the heat it develops during operation. Two popular mounting locations are in
the trunk or under the seat.
Select the location in which you wish to mount the amplifier. Use caution when mounting
amplifier, there are many wires, gas lines, vacuum lines, brake lines as well as a gas tank
in the automobile. Make sure you know where they are when mounting the amplifier to
avoid puncturing lines, shorting wires or drilling holes in the gas tank. Once you are
ready, use a pencil to mark the mounting holes in the bottom panel. After you have
marked the locations of the holes move amplifier out of the way and drill small starter
holes to make the tapping screws easier to install. Use provided screws to tighten down
the amplifier.
Connect The Amplifier To The Car's Battery
At times, the amplifier will need to draw large levels of current that cannot be provided by
any circuit in the car's fuse box. We recommended using a 4 to 8 gauge power wire for
your connections depending on the amplifier and length of the wire. Strip one end of the
wire to connect to the terminal on the amplifier marked “+12V”. Loosen screw terminal
and connect bare wire and tighten. Use caution to make sure no stray wire strands come
in contact with surrounding terminals causing short circuits. Run the wire directly to the
positive terminal of the car's battery. Make sure to use an in-line fuse within 12” of the
car's battery to protect the electrical system and amplifier against short circuits and/or
power surges.
Connect The Ground Terminal Of The Amplifier To The Car's Chassis
For the ground connection, use a 4 to 8 gauge wire (black) to connect to the terminal
marked “ground” and then connect it to the car's chassis. Try to keep the length of the
cable as short as possible, preferably less than 6". Also make sure that the point on the
car where the connection is to be
made is free of paint and dirt.
Connect The Remote Terminal Of The Amplifier ToASwitchable +12V Source
This connection allows the amplifier to be turned on and off with the power control of the
radio. If the radio has a REMOTE output terminal, connect it to the amplifier's terminal
marked “remote” (using a 16 gauge wire or heavier). Now when the radio is turned on,
the amplifier will automatically turn on. This connection can also be made to the radio’s
PowerAntennawire.
IMPORTANT! Before making any connections, disconnect the car’s battery until the
installation is completed to avoid possible damage to the electrical system.
CAR BATTERY
+12V
-
IN-LINE POWER FUSE
MOUNTED WITHIN 12"
FROM BATTERY RECOMMENDED
(NOT PROVIDED)
94.7
RADIO'S REM OTE
TURN-ON OUTPUT
MOUNTING LOCATION POWER CONNECTIONS
--
++
POWER INPUT
Q Link
Master
Slave
BRIDGED MODE
SPEAKER OUTPUT
+12V Remote GROUND
-
-
-
-
FUSE

SINGLE SUBWOOFER CONNECTION ON MONO AMPS
Amplifer must
SIGNAL CONNECTIONS MONO AMPLIFIER SPEAKER CONNECTIONS
DUAL SUBWOOFER CONNECTION ON MONO AMPS
--
++POWER INPUT
QLink
Master
Slave
BRIDGED MODE
SPEAKEROUTPUT
+12V Remote GROUND
-
-
-
-
FUSE
--
++POWER INPUT
QLink
Master
Slave
BRIDGED MODE
SPEAKEROUTPUT
+12V Remote GROUND
-
-
-
-
FUSE
QRM2500 1 Ohm Minimum
QRM3000 1 Ohm Minimum
QRM4000 1 Ohm Minimum
QRM5000 1 Ohm Minimum
QRM1500 2 Ohm Minimum
QRM2500 1 Ohm Minimum
QRM3000 1 Ohm Minimum
QRM4000 1 Ohm Minimum
QRM5000 1 Ohm Minimum
QRM1500 2 Ohm Minimum
OUTPUT INPUT
Protect
Power
I nput
Sensiitivy INPUT
LEVEL
SUBSONIC
FILTER
LOW
PASS
BASS
BOOST
L L
RR
PHASE SHIFT
++++
0*
180
QRM3000
Protect
Power
X-OVER
Min Max 120Hz 3KHz
Level
INPUT INPUTOUTPUT
BASS BOOSTX-OVER
HP
HP
120Hz 3KHz 50Hz 250Hz Min Max
12 6 0 Full HP
2 2
1
3
4
1
CHANNELS 3 & 4 CHANNELS 1 & 2
+
+
+
+
+
QRA3600.4
recomended load or
the recomended load will cause

4 CHANNEL SPEAKER CONNNECTION
4 CHANNEL BRIDGED CONNECTIONS
QRA
QRA2400.4 QRA3600.4
SPEAKER CONNECTIONS (BRIDGED)
+
-
+
-
CH1 CH2
Ground Remote +12V
++
+
POWER INPUT
+
BRIDGED
SPEAKER OUTPUT SPEAKER OUTPUT
+
-
+
-
CH1 CH2
BRIDGED
+++
++++
+
-
+
-
CH1 CH2
Ground Remote +12V
++
+
POWER INPUT
+
BRIDGED
SPEAKER OUTPUT SPEAKER OUTPUT
+
-
+
-
CH1 CH2
BRIDGED
+++
++++

Protect
Power
X-OVER
Min Max 120Hz 3KHz
Level
INPUT INPUT
OUTPUT
BASS BOOSTX-OVER
HP
HP
120Hz 3KHz 50Hz 250Hz Min Max
12 6 0 Full HP
2 2
1
3
4
1
CHANNELS 3 & 4 CHANNELS 1 & 2
+
+
+
+
+
QRA4400
QR
QR
OUTPUT INPUT
Protect
Power
Input
Sensiitivy
INPUT
LEVEL
SUBSONIC
FILTER
LOW
PASS
BASS
BOOST
L L
RR
PHASE SHIFT
++++
0*
180
QRM3000
ADJUSTING THE CROSSOVER AND BASS
FINE TUNE THE SYSTEM
REMOTE BASS CONTROL MODULE
FUSE
SPEAKER OUTPUT
Slave
BRIDGED MODE
POWER
++
--
INPUT
Master
Q Link +12V Remote Ground
FUSE
SPEAKER OUTPUT
Slave
BRIDGED MODE
POWER
++
--
INPUT
Master
Q Link +12V Remote Ground
Q-Link Technology
Master
Slave
QRM3000 QRM4000 QRM5000
Master /Slave selection
Q-Link Cable
2 Ohm Minimum

TROUBLESHOOTING THE SYSTEM SPECIFICATIONS
Output Power :
1 ohm
2 ohm
Frequency Resp.
S/N Ra o (A-weight)
THD with 80k filter
Low Input Level
Crossover Freq.
Crossover Slope
Bass EQ
Subsonic Filter
Bass Remote
Input Voltage
Output Power :
4 ohms
2 ohms
Bridged @ 4 ohms
Frequency Resp.
S/N Ra o (A-weight)
THD with 80k filter
Low Input Level
Crossover Freq. (Low)
Crossover Freq. (High)
Crossover Slope
Bass EQ
Input Voltage
smho4@detaR
2 x
2 x
1 x
10 Hz
>90
<.
285
50 Hz
120 Hz
12d
12d Hz
11. 4V
150W
300W
600W
Hz - 25K
dB
5%
mV - 6V
Hz - 250
Hz - 3.0K
B
B @ 45
2V - 14.
W55x2
1 x 1500W
10Hz - 150Hz
>90dB
<.5%
200mV - 6V
40Hz - 300Hz
12dB
18dB @ 45Hz
10Hz - 40hz
Yes
11.2V - 14.4V
1 x 375W@2
1 x 2500W
1 x 1250W
10Hz - 150Hz
>90dB
<.5%
40Hz - 300Hz
12dB
18dB @ 45Hz
Yes
11.2V - 14.4V
1 x 525W@1
1 x 3000W
1 x1500W
10Hz - 150Hz
>90dB
<.5%
30Hz - 250Hz
12dB
18dB @ 45Hz
Yes
11.2V - 14.4V
1x750W@1
4 x
4 x
2 x W
10 KHz
>9
<.
28 6V
50
12
12 45Hz
11.
150W
300W
21 00
4 x 55W
Hz - 25
0dB
5%
5mV -
Hz -
dB
dB @
2V - 14.4V
1 x 4000W
1 x2000W
10Hz - 150Hz
>90dB
<.5%
30Hz - 250Hz
12dB
18dB @ 45Hz
Yes
11.2V - 14.4V
1 x 1125W@1
QRM1500 QRM2500 QRM3000 QRM4000
1 x 5000W
1 x2500W
10Hz - 150Hz
>90dB
<.5%
30Hz - 250Hz
12dB
18dB @ 45Hz
Yes
11.2V - 14.4V
1 x 1500W@1
QRM5000
4 x 200W
4 x 400W
2 x 18000 W
W57x4
10Hz - 25KHz
>90dB
<. 5%
285mV - 6V
50Hz -
12dB
12dB @ 45Hz
11.2V - 14.4V
QRA2300 QRA2400.4 QRA3600.4
4 ohm 1 x 1 x 625W 1 x750W 1 x1000W 1 x1250W
NA
750W
052-zH zH05 052-zH zH05
.3 zH
0K.3 zH
0K
200mV - 6V 200mV - 6V 200mV - 6V 200mV - 6V
Ω Ω Ω Ω Ω
10Hz - 40hz 20Hz - 50hz 20Hz - 50hz 20Hz - 50hz