LIMITED WARRANTY

T e l : 9 5 6 -4 2 8 -4 2 6 3 F a x : 9 5 6 -4 2 1 -4 5 1 3 w w w .q u a n tu m a u d io .n e t

MOSFET POWER AMPLIFIERS

tel: (956) 428-4263 fax: (956) 421-4513www.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 - QRA4300 - QRA4400QRM1500 - QRM2500 - QRM3000 - QRM4000 - QRM5000

1

Congratulations on your purchase of a Quantum AudioTM state-of-the-art power amplifier.Your selection of a Quantum AudioTM 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 retailer. . 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 #

Fuse Amplifier’s Power Wire At The Battery

Be sure to fuse the power wire within 12” of the car's battery. This will protect the car's battery in case of a short circuit between the power amplifier and battery. THIS IS A MUST, t he amplifier's built-in fuse will only protect the power amplifier not the car's battery!

Use High Grade Wire Connectors

T o ensure maximum power transfer and secure safe connections, it is recommended to use high grade barrier spades (for connection at amplifier) and terminal rings (for connection at battery).

Do Not Run Any Wires Underneath Vehicle

Exposed wires have a chance of being cut or damaged. It is best to run all wires through the vehicle under the carpet and/or side panels. This lends to a cleaner installation and less risk of damage.

Use Caution When Mounting Amplifier

Remember there are many electrical 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.

Run Signal Wires Away From Electrical Wires

To avoid possibility of induced noise from the car's electrical system (i.e. popping noises or engine noise), run wires away from the car's electrical wiring.

Make All Ground Wires As Short As Possible And At The Same Point

In order to reduce the chance of ground loops (i.e. engine noise), make the grounding wire as short as possible to reduce the wire's resistance. Also, when using multiple components, make sure all units are grounded at the same point.

Avoid Sharp Edges When Running The Wires

T o avoid the possibility of power, signal or speaker shorts, be careful not to allow the amplifier’s wires to come in contact with sharp edges. Use a grommet to protect the wire when running through the fire wall .

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

3 4

tuO eniL

lanoitidda ot noitcennoc tneinevnoc rof dedivorp neeb evah stuptuo enil egnar lluFamplifiers in the system.

Power Fusing

.tnerruc evissecxe dna stiucric trohs tsniaga reifilpma eht stcetorp sihT

Remote Turn-on

ehT .tuptuo etomer s'tinu daeh eht ot detcennoc nehw no reifilpma snrut yllacitamotuA lortnoc sihT .noitpmusnoc tnerruc evas ot tinu daeh eht htiw ffo dna no nrut lliw reifilpma eht htiw detcennoc eb tsum tI .noitcetorp s'reifilpma eht rof tiucric teser eht setarepo osla

.stiucric noitcetorp teser ot redro ni tinu daeh

Adjustable Input Sensitivity

.reifilpma rewop eht dna ecruos ruoy neewteb gnihctam level eht enut-enif ot uoy swollA

ytilibatS ecnadepmI woL

QRA4300QRA4400QRM1500

noitcetorP tesffO CD

CD nosaer emos rof fI .egatlov CD tsniaga reifilpma eht fo tuptuo eht stcetorp tiucric sihT eht gnitcetorp nwod tuhs lliw reifilpma eht ,egats tuptuo eht ta detceted si egatlov

.tnerruc tcerid morf srekaeps

noitcetorP tiucriC trohS

ro srekaeps eht ni dnuof trohs a ot eud egamad morf reifilpma eht stcetorp tiucric ehT lliw reifilpma eht ,dnuorg htiw tcatnoc ni semoc gniriw sti ro srekaeps eht fo eno fI .gniriw ,ffo tinu daeh eht nrut dna melborp eht tcerroc ,noitarepo lamron emuser o T .nwod tuhs

.niaga yalp dna teser lliw reifilpma ehT .no kcab neht

Thermal Protection

hgih ot erusopxe degnolorp yb desuac egamad tsniaga yrtiucric reifilpma eht tcetorp o T ylevissecxe sehcaer reifilpma eht fi detavitca si tiucric noitcetorp lamreht a ,serutarepmet tuhs lliw reifilpma eht ,detavitca si tiucric lamreht eht ecnO .erutarepmet gnitarepo hgih efas a ot nwod slooc ti ecno no kcab nrut yllacitamotua lliw reifilpma ehT .ffo looc ot nwod

.erutarepmet gnitarepo

rotacidnI rewoP

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revossorC ni-tliuB

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QRM1500, QRM2500, QRM3000, QRM4000 and QRM5000. The QRA2300, QRA4300erutaef a variable sa retlif ssap wol well as a high pass filter.

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FEATURES AND BENEFITS

-2 Ohm Stereo, 4 Ohm BridgedQRA2300 -2 Ohm Stereo, 4 Ohm Bridged

-2 Ohm Stereo, 4 Ohm Bridged-2 Ohm Mono

QRM2500 -1 Ohm MonoQRM3000 -1 Ohm MonoQRM4000 -1 Ohm Mono

QRA4400

QRM5000 -1 Ohm Mono

Q-Link Capability

The Quantum Audio QRM3000 , QRM4000 and QRM 5000 have an internal linkingcircuit that allows you to link two like model amplifiers so that you can double youroutput 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 gaincontrols.

5 6

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 To A Switchable +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 Power Antenna wire.

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 FUSEMOUNTED WITHIN 12"

FROM BATTERY RECOMMENDED(NOT PROVIDED)

94.7

RADIO'S REMOTETURN-ON OUTPUT

MOUNTING LOCATION POWER CONNECTIONS

- - + + POWER INPUT

Q Link

MasterSlave

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

Q Link

MasterSlave

BRIDGED MODE

SPEAKER OUTPUT

+12V Remote GROUND

--

--

FUSE

- - + + POWER INPUT

Q Link

MasterSlave

BRIDGED MODE

SPEAKER OUTPUT

+12V Remote GROUND

--

--

FUSE

QRM2500 1 Ohm MinimumQRM3000 1 Ohm MinimumQRM4000 1 Ohm MinimumQRM5000 1 Ohm Minimum

QRM1500 2 Ohm Minimum

QRM2500 1 Ohm MinimumQRM3000 1 Ohm MinimumQRM4000 1 Ohm MinimumQRM5000 1 Ohm Minimum

QRM1500 2 Ohm Minimum

OUTPUT INPUT

Protect

Power

InputSensiitivy INPUT

LEVEL

SUBSONICFILTER

LOWPASS

BASSBOOST

L L

R R

PHASE SHIFT

+ + + + 0*180

QRM3000

Protect

PowerX-OVER

Min Max 120Hz 3KHz

Level

INPUT INPUTOUTPUT

BASS BOOSTX-OVER

HPHP

120Hz 3KHz 50Hz 250Hz Min Max

12 6 0 Full HP

2 2

13

4

1CHANNELS 3 & 4CHANNELS 1 & 2

+ + + + +

QRA4400

recomended load or the recomended load will cause

4 CHANNEL SPEAKER CONNNECTION

4 CHANNEL BRIDGED CONNECTIONS

QRA

QRA4300 QRA4400

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

PowerX-OVER

Min Max 120Hz 3KHz

Level

INPUT INPUTOUTPUT

BASS BOOSTX-OVER

HPHP

120Hz 3KHz 50Hz 250Hz Min Max

12 6 0 Full HP

2 2

13

4

1CHANNELS 3 & 4CHANNELS 1 & 2

+ + + + +

QRA4400

QR

QR

OUTPUT INPUT

Protect

Power

InputSensiitivy INPUT

LEVEL

SUBSONICFILTER

LOWPASS

BASSBOOST

L L

R R

PHASE SHIFT

+ + + + 0*180

QRM3000

ADJUSTING THE CROSSOVER AND BASS

FINE TUNE THE SYSTEM

REMOTE BASS CONTROL MODULE

FUSESPEAKER OUTPUT

Slave

BRIDGED MODE

POWER++-- INPUT

Master

Q Link +12V Remote Ground

FUSESPEAKER 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 ohm2 ohm

Frequency Resp.S/N Ra o (A-weight)THD with 80k filterLow Input LevelCrossover Freq.Crossover SlopeBass EQSubsonic FilterBass RemoteInput Voltage

Output Power :4 ohms2 ohms

Bridged @ 4 ohms

Frequency Resp.S/N Ra o (A-weight)THD with 80k filterLow Input LevelCrossover Freq. (Low)Crossover Freq. (High)Crossover SlopeBass EQInput Voltage

smho 4 @ detaR

2 x 2 x 1 x

10 Hz>90<.28550 Hz

120 Hz12d12d Hz11. 4V

150W300W500W

Hz - 25KdB

5%mV - 6V

Hz - 250Hz - 3.0K

BB @ 45

2V - 14.

W55 x 2

1 x 1500W

10Hz - 150Hz>90dB<.5%200mV - 6V40Hz - 300Hz12dB18dB @ 45Hz10Hz - 40hzYes11.2V - 14.4V

1 x 375W@2

1 x 2500W1 x 1250W

10Hz - 150Hz>90dB<.5%

40Hz - 300Hz12dB

1 8dB @ 45Hz

Yes11.2V - 14.4V

1 x 525W@1

1 x 3000W1 x1500W

10Hz - 150Hz>90dB<.5%

30Hz - 250Hz12dB18dB @ 45Hz

Yes11.2V - 14.4V

1x750W@1

4 x4 x2 x W

10 KHz>9<.28 6V

501212 45Hz11.

150W 300W 600

4 x 55W

Hz - 250dB5%5mV -

Hz -dBdB @ 2V - 14.4V

1 x 4000W1 x2000W

10Hz - 150Hz>90dB<.5%

30Hz - 250Hz12dB18dB @ 45Hz

Yes11.2V - 14.4V

1 x 1125W@1

QRM150 0 QRM250 0 QRM300 0 QRM4000

1 x 5000W1 x2500W

10Hz - 150Hz>90dB<.5%

30Hz - 250Hz12dB18dB @ 45Hz

Yes11.2V - 14.4V

1 x 1500W@1

QRM5000

4 x 200W4 x 400W2 x 800W

W57 x 4

10Hz - 25KHz>90dB<. 5%285mV - 6V

50Hz - 12dB12dB @ 45Hz11.2V - 14.4V

QRA2300 QRA4300 QRA4400

4 ohm 1 x 1 x 625W 1 x750W 1 x1000W 1 x1250W

NA

750W

052 - zH zH05 052 - zH zH05

.3 zH0K .3 zH0K

200mV - 6V 200mV - 6V 200mV - 6V 200mV - 6V

Ω Ω Ω Ω Ω

10Hz - 40hz 20Hz - 50hz 20Hz - 50hz 20Hz - 50hz