QUANTUM AUDIO QP2000.4 4-Channel Amplifier Owner’s Manual

CAR AUDIO SYSTEM
PLEASE READ CAREFULLY BEFORE INSTALLING
OR OPERATINGb

Owner’s Manual

MODEL:
QPX2000.4, QPX2000.4
QPX1200.2
QPX2000.1M, QPX3000.1D, QPX4000.1D & QPX5000.1D QPX6000.1D

INTRODUCTION

Congratulations on your purchase of this Quantum Audio amplifier. Your selection of a Quantum product indicates a true appreciation of fine musical reproduction. To ensure proper use of this unit, please make sure to read the owner’s manual carefully before operating it and keep it for future reference.

KEEP YOUR SALES RECEIPT

Take this time to attach your sales receipt to the manual and out in a safe place. In case of any unforeseen reason this product may need warranty service, your receipt will be necessary to establish the purchase date.

RECOMMENDATION

An 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 retailer. If you decide to install it yourself, please carefully read through this manual and take your time to do a quality install-tion. Due to continuing product improvements and possible manual revisions, we recommend checking our website for the latest product information at: www.quantumxaudio.com
IMPORTANT! Before making any connections, disconnect the vehicle’s battery until the installation is completed to avoid possible damage to the electrical system.
WARNING! Exposure to a 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.
Serial #………………….. Model #…………………

Safety Precautions

Fuse amplifiers 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 ISA MUST, the amplifier’s built-in fuse will only protect the power amplifier not the car’s battery!
Use high-grade wire connectors
To 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 the battery).
Do not run any wires underneath the 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 leads to a cleaner installation and less risk of damage.
Use caution when mounting an amplifier
Remember there are many electrical wires, gas lines, vacuum lines, brake lines as well as gas tanks 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 the 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
To avoid the possibility of power, signal, or speaker shorts, be careful not to allow the amplifiers wires to come in contact with sharp edges. Use a grommet to protect the wire when running through the firewall.

Features and Benefits

DC Offset Protection
This circuit protects the output of the amplifier against DC voltage. If for some reason DC voltage is detected at the output stage, the amplifier will shut down protecting the speakers from direct current.
Short Circuit Protection
The circuit protects the amplifier from damage due to a short found in the speakers or wiring. If one of the speakers or its wiring comes in contact with the ground, the amplifier will shut down. To resume normal operation, correct the problem and turn the head unit off, then back on. The amplifier will reset and play again.
Thermal Protection
To protect the amplifier circuitry against damage caused by prolonged exposure to high temperatures, a thermal protection circuit is activated if the amplifier reaches excessively high operating temperature. Once the thermal circuit is activated, the amplifier will shut down to cool off. The amplifier will automatically turn back on once it cools down to a safe operating temperature.
Power Indicator
The diagnostic L.E.D. Illuminates when the amplifier is on and receiving power.
Built-in Crossover
The Quantum QPX2000.4, QPX2800.4, and QPX1200.2 are equipped with a built-in variable crossover network allowing you to select the crossover function and frequency for each front channel or rear channel of the amplifier independently. The Quantum QPX2000.1M, QPX3000.1D, QPX4000.1D, and QPX5000.1D are equipped with a built-in variable lowpass crossover network allowing you to select the crossover function and frequency for each of the front channels or rear channels of the amplifier independently.
Power and Speaker Distribution Blocks
Heavy gauge bare wire distribution blocks are provided for maximum power and signal transfer with minimal resistance. Full-range line outputs have been provided for convenient connection to additional amplifiers in the system. The outputs are buffered to reduce signal loss.
Power Fusing
This protects the amplifier against short circuits and excessive current.
Remote Turn-on
Automatically turns the amplifier on when connected to the head unit’s remote output. the amplifier will turn on and off with the head unit to save current consumption. This control also operates the reset circuit for the amplifier’s protection. It must be connected with the head unit in order to reset protection circuits.
Adjustable Input Sensitivity
Allows you to fine-tune the level matching between your source and the power amplifier.

4 CHANNEL STEREO AMPLIFIERS
QPX2000.4      2 Ohms Stereo| 50 mm /1.96″| 220 mm /8.6″| 280 mm /11″
---|---|---|---
QPX2800.4      2 Ohms Stereo| 50mm/1.96″| 220 mm /8.6″| 348 mm /13.7″
2 CHANNEL STEREO AMPLIFIERS
QPX1200.2       2 Ohms Stereo| 50 mm /1.96″                220 mm /8.6″ 250 mm /9.8″
MONOBLOCK AMPLIFIERS| | |
QPX2000.1 M      2 Ohms Stereo| 50mm/1.96″| 220 mm /8.6″| 280 mm /11″
QPX3000.1D       1 Ohm Stereo| 50mm/1.96″| 220 mm /8.6″| 190 mm /7.50″
QPX4000.1D      1 Ohm Stereo| 50 mm / 1.96″| 220 mm /8.6″| 230 mm /9.05″
QPX5000.1 D      1 Ohm Stereo| 50 mm /1.96″| 220 mm /8.6″| 280 mm /11″
QPX6000.1D       1 Ohm Stereo| 50mm/1.96″| 220 mm /8.6″| 302 mm /11.875″

Built-in Crossover

4 Channel Stereo Amplifiers
The Quantum QPX2000.4 and QPX2800.4 are equipped with a built-in variable crossover network allowing you to select the crossover function and frequency for each the front channels or rear channels of the amplifier independently.
Channels 1 and 2 feature a high pass filter to protect your high-frequency speakers from low bass or the option to run your speaker’s full range. Channels 3 and 4 allow the user to select a High pass, Low Pass, or full-range signal to the loudspeakers.

4 Channel Stereo Amplifiers

Power Connection Leads

Notes on the power supply
Connect the +12V power input lead only after all other leads have been connected. Be sure to connect the ground wire of the unit securely to a metal part of the car. A loose connection may cause a malfunction of the amplifier.
REMOTE: The unit is turned on by applying +12Volts to this terminal. This terminal does not draw heavy current like the two power terminals so a thinner connecting wire is acceptable. Standard 18 GUAGE is fine and the standard color is yellow. If the power antenna wire is already in use, you can still splice it. With this method, the unit will turn on automatically with the radio. Use the power supply lead with a fuse attached whose value is the same as the original fuse. Place the fuse in the power supply lead as close as possible to the car battery.
During a full-power operation. Maximum current will run through the system.Therefore, Make sure that the leads to be connected to the +12V and GND terminals of the unit respectively must be larger than 10-Guage (AWG 10)

4 Channel & 2 Channel

System 1: 4 Channel Mode

4 Channel Amplifier

QPX2000.4 & QPX2800.4
System 2: Bridged Connection Subwoofer

Monoblock Amplifiers

MODELS: QPX2000.1M, QPX3000.1D, QPX4000.1D, QPX5000.1 D, QPX6000.1D
Built-In – Crossover
The Quantum Audio QPX mono amplifiers are equipped with a 24 dB per octave variable Low Pass crossover.
They also feature a variable Sub Sonic filter between 15Hz – 55 Hz to protect your subwoofers from ultra-low frequencies when using vented enclosures. A Variable Bass Boost is available to tune your subwoofer enclosure.

Monoblock Amplifier
Power Connections

It is important that you read this manual very carefully and follow it for your installation carefully. Before you start your installation, please consider the following concerns.

1. Disconnect the negative (-) battery cable before mounting the amplifier °ma king any connections. Check the battery and alternator ground (-) connections. Make sure they are properly connected and free of corrosion.
2. Before selecting a mounting location for an amplifier, please take some concerns into consideration regarding cooling efficiency and safety.
3. Power connection Before installing the amplifier, disconnect the negative (-) wire from the battery to protect against any accidental damage to your amplifier and System. This Amplifier is designed to use 4 AWG POWER and GROUND cables.
4. Ground connection Locate a secure grounding connection as close to the amplifier as possible. Make sure the location is clean and provides a direct electrical connection to the frame of the vehicle. Connect one end of a short piece of the same size cables as the power cable to the grounding point. Run the other end of the cable to the amplifier mounting location. Connecting the ground cable to the screw terminal labeled as GND.
5. Remote connection Run a remote turn-on cable from the switched +12V source you will be using to turn on the system components. This may be a toggle switch, a relay, or your source unit’s remote trigger wire, or a power antenna trigger wire. Connect the remote turn-on cable to the power terminal labeled as REM. Run this lead to the amplifier mounting location. Using 16AWG wire or larger.

RCA Connections Monoblock

Single Amp Input Connection

Speakers Connections

Monoblock Amplifier

Master & Slave RCA Connection
QLink Input Connection (MASTER & SLAVE RCA Connection)
Using a QLink configuration, the MASTER amplifier has total control over the SLAVE amplifier. When using a dual amplifier to operate the subwoofer, the positive terminal of the subwoofer’s voice coil must be connected to the positive terminal of the MASTER amplifier and the negative terminal of the subwoofer’s voice coil must be connected to the positive terminal of the SLAVE amplifier.Be advised that the dual amplifier configuration has tremendous output potential, so ensure that your subwoofers can handle such a large amount of power.

4 Channel & 2 Channel

Features

• Class A/B Circuitry
• 2 Ohm Load Stereo Capability
• Amber-Glow Logo Badge
• Audiophile Grade Components
• Speaker Short Circuit Protection
• High-Efficiency Mosfet Design
• 12 dB Variable High Pass and Low Pass X-over
• Selectable: 0, 6, 12 dB/ Active Bass Boost
• Buffered Line Output for Easy Daisy-Changing

Specifications:

Ch 1-2 High Pass Crossover:
Ch 3-4 High pass Crossover:
Ch 3-4 Low pass Crossover:
X-over Slope: Bass Boost @ 45Hz:
Input Sensitivity:
Signal to Noise ratio:
THD at Rated Power:| 2200 Watts 4 x 80 watts @ 4 ohms stero 4 x 160 watts @ 2 ohms stereo 2 x 300 watts @ 4 ohms bridged 20Hz-250 Hz 20Hz-250 Hz 50Hz – 250 Hz 12 dB 0-12dB 285Mv – 6V >90dB <0.5%| 3600 watts 4 x 180 watts @ 4 ohms stereo 4 x 360 watts @ 2 ohms stereo 2 x 600 watts @ 4 ohms bridged 20Hz-250 Hz 20Hz-250 Hz 50Hz – 250 Hz 12 dB 0-12dB 285Mv – 6V >90dB <0.5%

2 Channel Amplifier

X-over Slope: Bass Boost @ 45Hz: Input Sensitivity: HP Xover: Ch 1-2 High Pass Crossover: Ch 1-2 Low Pass Crossover: Signal to Noise ratio: THD at Rated Power:| 1800 Watts 2 X 180 Watts @ 4 Ohm stereo 2 X 360 Watts @ 2 Ohm stereo 1 X 600 Watts @ 4 Ohm bridged 12 dB 0-12dB 285Mv – 6V 120 Hz – 3k Hz 20Hz-250 Hz 120 Hz – 3k Hz >90dB <0.5%

Due to continuing product improvement, specifications subject to change without notice.

X-over Slope: Signal to Noise ratio: Variable Subsonic Filter: Low Pass Crossover: Bass Boost @ 45Hz: Phase Shift Control: Frequency Response THD at Rated Power: Input Sensitivity:| 2000 Watts 1 X2000 Watts @ 2 Ohm mono, 1 X 1000 Watts @ 4 Ohm mono

90dB 15Hz – 55Hz 40Hz-300Hz 0-12db 0-180 degree 10Hz – 220Hz 1 % <0.1% 200mV- 6V| 3000 Watts 1 X 3000 Watts @ 1 Ohm mono, 1 X 1500 Watts @ 2 Ohm mono 12dB 90dB 15Hz – 55Hz 25Hz-250Hz 0-12db 0-180 degree 10Hz – 220Hz 1% <0.1% 200mV – 6V
Dynamic Power:| Model QPX4000.1 D| Model QPX5000.1 D| Model QPX6000.1 D
---|---|---|---
Signal to Noise ratio: Variable Subsonic Filter: Low Pass Crossover: Bass Boost @ 45Hz: Phase Shift Control: Frequency Response THD at Rated Power: Input Sensitivity:| 4000 Watts 1 X 4000 Watts @ 1 Ohm mono, 1 X 2000 Watts @ 2 Ohm mono >90dB 15Hz – 55Hz 25Hz-250Hz 0-12db 0-180 degree 10Hz – 220Hz 1 % <0.1% 200mV – 6V| 5000 Watts 1 X 5000 Watts @ 1 Ohm mono, 1 X 2500 Watts @ 2 Ohm mono >90dB 15Hz – 55Hz 25Hz-250Hz 0-12db 0-180 degree 10Hz – 220Hz 1 % <0.1% 200Mv – 6V| 6000 Watts 1 X 6000 Watts @ 1 Ohm mono, 1 X 3000 Watts @ 2 Ohm mono >90dB 10Hz – 40Hz 40Hz-300Hz 0-12db 0-180 degree 10Hz – 220Hz 1 % <0.1% 200Mv – 6V

LIMITED WARRANTY

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 (2)years. This warranty applies to the original purchaser 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 (2) years warranty period.
This limited warranty does not extend to units that have been subjected to misuse, abuse, neglect, or accident. In Quantum Audio’s judgment, products that show evidence of having been altered, modified, 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.

302 Hanmore Industrial Parkway – Harlingen, TX 78550
phone: 877.787.0101 – fax:956.421.4513
www.guantumXaudianet
– support@dbdrive.net

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