For-x XAQ-4.80SQ User manual

XAQ-4.80SQ
XAQ-2.150SQ
Pure Rear Stage Power Amplifier

1
Thank you for purchasing FOR-X Class AB Full Range amplifier for your car audio
system. Now you own an amplifier of uncompromising design and engineering.
Incorporating the latest advanced circuit technology. You will discover soon the
amplifier displays optimum sound with high quality and reliable performance. All are
proven the high quality of FOR-X products.
FOR-X amplifier are the result of advanced craftsmanship which using the
highest quality components and strict quality control system. In order to provide you a
long joyful listening journey, we recommend you install
your amplifier by an authorized FOR-X dealer. It will ensure the proper installation of
your amplifier and it will also increase the warranty to one year.
Please read this manual thoroughly to ensure that you can get the maximum
benefit from this new amplifier. When you install it properly, this unit will provide you
years of trouble-freeperformance. To be better serve or replace for your amplifier,
please record the following information which will help you protect your investment.
Fully independent separation circuit design of left and right channels
Single side connection design for convenient installation.
High Power, Compact Size Design
MCU Power Management
High quality SMD components can short the circuit path and avoid EMC
interfering. Audio SMD E-Capacitiors is optimized for Audio performance
With high volume capacitors, N-type MOSFET and High-current high-
efficiency switching power supply
Overload,Shortcircuit,Overheat,High/Low voltage Protection
Rohs Compliant Production Technique
DESIGN FEATURES
CONGRATULATIONS
2
installation 1
（ ）Fig. 1
CONNECTING THE AMPLIFIER
1.Turn the amplifier upside down.
2.Use eight screws from the standard accessories to install four fixtures on the amplifier
(Fig. 1). According to the actual installation position of the amplifier, you can flexibly select
vertical (installation 1) or horizontal (installation 2) fixtures to install on the amplifier.
3.Use four black screws from the standard accessories to fix the amplifier to the
installation position.
INSTALLATION
installation 1
installation 2 installation 2
The 12 volt power cable must be connected with a fuse in near 45cm(18")of Battery + terminal.
FOR-X

1
Thank you for purchasing FOR-X Class AB Full Range amplifier for your car audio
system. Now you own an amplifier of uncompromising design and engineering.
Incorporating the latest advanced circuit technology. You will discover soon the
amplifier displays optimum sound with high quality and reliable performance. All are
proven the high quality of FOR-X products.
FOR-X amplifier are the result of advanced craftsmanship which using the
highest quality components and strict quality control system. In order to provide you a
long joyful listening journey, we recommend you install
your amplifier by an authorized FOR-X dealer. It will ensure the proper installation of
your amplifier and it will also increase the warranty to one year.
Please read this manual thoroughly to ensure that you can get the maximum
benefit from this new amplifier. When you install it properly, this unit will provide you
years of trouble-freeperformance. To be better serve or replace for your amplifier,
please record the following information which will help you protect your investment.
Fully independent separation circuit design of left and right channels
Single side connection design for convenient installation.
High Power, Compact Size Design
MCU Power Management
High quality SMD components can short the circuit path and avoid EMC
interfering. Audio SMD E-Capacitiors is optimized for Audio performance
With high volume capacitors, N-type MOSFET and High-current high-
efficiency switching power supply
Overload,Shortcircuit,Overheat,High/Low voltage Protection
Rohs Compliant Production Technique
DESIGN FEATURES
CONGRATULATIONS
2
installation 1
（ ）Fig. 1
CONNECTING THE AMPLIFIER
1.Turn the amplifier upside down.
2.Use eight screws from the standard accessories to install four fixtures on the amplifier
(Fig. 1). According to the actual installation position of the amplifier, you can flexibly select
vertical (installation 1) or horizontal (installation 2) fixtures to install on the amplifier.
3.Use four black screws from the standard accessories to fix the amplifier to the
installation position.
INSTALLATION
installation 1
installation 2 installation 2
The 12 volt power cable must be connected with a fuse in near 45cm(18")of Battery + terminal.
FOR-X

XAQ-2.150SQ
AMPLIFIER FUNCTIONS
5.1:SPEAKER
Connect your s peakers correct ly which means plus t o plus and minus to minus. Never connect
the speaker ca bles to chassis gro und directly. It may destroy your amplifier.
5.2:POWER
BATT+: Used to connect the positive terminal 12V car ba ttery. In order to ensure adequate power
supply for the a mplifier, special cab le should be used to co nnect directly to t he positive pole of the
battery, and the fuse should be connected in seri es within 20 centim eters from the posi tive pole of
the battery.
GND: Used to con nect amplifier gr ounding cable. The power supply gr ounding cable need to be
firmly conne cted to the frame of the vehicle or other pl aces with good cond uctivity. Pl ease use the
cable with sam e specification s as the power supply cable and connect to frame of the vehicle near
the installa tion position of th e amplifier. Please ens ure that the ground ing point is good and take
appropriate anti-oxidation measures.
REM: Connect i t to the remote turn on lead of the head unit or s ignal source so tha t the amplifier
will switch on a nd off automatically with source u nit.
5. :INPUT3
Unit has built-in high-performance balanced input circuit to ensure high fidelity signal input.
Meanwhile, It can perfectly filter out the vehicle current noise.
XAQ-4.80SQ
5.4:GAIN
Adjustable Input level control knob
XAQ-2.150SQ / XAQ-4.80SQ input level adjustable between 0.5V ~ 5V
When installing and tuning, it is necessary to adjust the GAIN knob to match the input level of the
amplifier with the output level of the sound source equipment.
5.2 5.15.3 5.4
5.6
5.2 5.3 5.4 5.1
5.5
5.5
5.6
The red led will light up and will be flashing if there is fault presented to the amplifier. This may be
caused by one of the following: Short circuit, Overload, Overheating, Over voltage and Under
voltage. Please disconnect the amplifier and resolve the fault before reconnecting the amplifier.
5. :ALARM5
When the unit finishes self-checking and go into proper working status, Blue led will illuminate.
(when turn on the amp, Blue led will flash 3 times before it illuminates. Red led will not illuminate.)
5.6:RUN
AMPLIFIER INSTALLATION WIRING DIAGRAM
XAQ-2.150SQ wiring diagram (stereo connection mode)
XAQ-4.80SQ Connection Diagram (4 Channel/ 2-Way Active Connection Mode)
REAR WOOFER
FRONT / TWEETER
REAR WOOFER
Minimum impedance 2 ohms
Minimum impedance 2 ohms
Minimum impedance 2 ohms

XAQ-2.150SQ
AMPLIFIER FUNCTIONS
5.1:SPEAKER
Connect your s peakers correct ly which means plus t o plus and minus to minus. Never connect
the speaker ca bles to chassis gro und directly. It may destroy your amplifier.
5.2:POWER
BATT+: Used to connect the positive terminal 12V car ba ttery. In order to ensure adequate power
supply for the a mplifier, special cab le should be used to co nnect directly to t he positive pole of the
battery, and the fuse should be connected in seri es within 20 centim eters from the posi tive pole of
the battery.
GND: Used to con nect amplifier gr ounding cable. The power supply gr ounding cable need to be
firmly conne cted to the frame of the vehicle or other pl aces with good cond uctivity. Pl ease use the
cable with sam e specification s as the power supply cable and connect to frame of the vehicle near
the installa tion position of th e amplifier. Please ens ure that the ground ing point is good and take
appropriate anti-oxidation measures.
REM: Connect i t to the remote turn on lead of the head unit or s ignal source so tha t the amplifier
will switch on a nd off automatically with source u nit.
5. :INPUT3
Unit has built-in high-performance balanced input circuit to ensure high fidelity signal input.
Meanwhile, It can perfectly filter out the vehicle current noise.
XAQ-4.80SQ
5.4:GAIN
Adjustable Input level control knob
XAQ-2.150SQ / XAQ-4.80SQ input level adjustable between 0.5V ~ 5V
When installing and tuning, it is necessary to adjust the GAIN knob to match the input level of the
amplifier with the output level of the sound source equipment.
5.2 5.15.3 5.4
5.6
5.2 5.3 5.4 5.1
5.5
5.5
5.6
The red led will light up and will be flashing if there is fault presented to the amplifier. This may be
caused by one of the following: Short circuit, Overload, Overheating, Over voltage and Under
voltage. Please disconnect the amplifier and resolve the fault before reconnecting the amplifier.
5. :ALARM5
When the unit finishes self-checking and go into proper working status, Blue led will illuminate.
(when turn on the amp, Blue led will flash 3 times before it illuminates. Red led will not illuminate.)
5.6:RUN
AMPLIFIER INSTALLATION WIRING DIAGRAM
XAQ-2.150SQ wiring diagram (stereo connection mode)
XAQ-4.80SQ Connection Diagram (4 Channel/ 2-Way Active Connection Mode)
REAR WOOFER
FRONT / TWEETER
REAR WOOFER
Minimum impedance 2 ohms
Minimum impedance 2 ohms
Minimum impedance 2 ohms

TROUBLE SHOOTING SPECIFICATION
XAQ-2.150SQ XAQ-4.80SQ
S/N ratio
Damping factor (4 ohms)
Frequency Response
THD
Input sensitivity
Input impedance
Intelligent Power
Management System
RMS Power
4 Ohm Load
Bridged 4Ohm Load
2 Ohm Load
Minimum Load
Voltage angeR
Recommend to use external fuse
2 x 150W
10~50KHz(-3dB)
<0.15%
>20K
YES
>100dB
0.5-5V
8.2 6V~1
2 x 200W
4 x 80W
>20K
YES
>100dB
8.2 6V~1
4 x 105W
2 x 240W
Product size
( x x )mmLength Width Height 270 x 143 x 56mm 270 x 143 x 56mm
6 A0 80A
1 x 380W
0.5-5V
2 Ohm 2 Ohm
<0.15%
>250>250
10~50KHz(-3dB)
FOR-X
5 5

TROUBLE SHOOTING SPECIFICATION
XAQ-2.150SQ XAQ-4.80SQ
S/N ratio
Damping factor (4 ohms)
Frequency Response
THD
Input sensitivity
Input impedance
Intelligent Power
Management System
RMS Power
4 Ohm Load
Bridged 4Ohm Load
2 Ohm Load
Minimum Load
Voltage angeR
Recommend to use external fuse
2 x 150W
10~50KHz(-3dB)
<0.15%
>20K
YES
>100dB
0.5-5V
8.2 6V~1
2 x 200W
4 x 80W
>20K
YES
>100dB
8.2 6V~1
4 x 105W
2 x 240W
Product size
( x x )mmLength Width Height 270 x 143 x 56mm 270 x 143 x 56mm
6 A0 80A
1 x 380W
0.5-5V
2 Ohm 2 Ohm
<0.15%
>250>250
10~50KHz(-3dB)
FOR-X
5 5