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Thank  you  for  purchasing  our  car  audio  Amplifier.  This  power  amplifier  has  been 
designed  to  provide  high  quality  performance  with  a  minimum  of  maintenance. 
However, it's performance will only be as good as the care and quality of components 
with  which  is  installed.  We  therefore  advise  that  you  read  these  instructions  very 
carefully to familiarize yourself with the product and it's features.

Before installing the power amplifier please read this instruction manual carefully. The 
instructions  for  mounting  and  connecting  the  set  have  to  be  followed  precisely.  If 
necessary, a service center should be consulted.

All connection for DC power, signal input and speaker outputs can be carried out easily 
and safely by way of RCA and screwed terminals.

Please choose a mounting place without any direct weather influences. Note that the 
amplifier generates heat so that a well ventilated place is necessary. According to your 
car's construction the set can be made very carefully in order to ensure the amplifier's full 
performance and reliability.

Keep the wire connections as short as possible with sufficient dimensions in order to 
minimize power losses and provide a higher audio output of the system.

For safety reasons route all power and speaker wiring by using the exiting wire channels.

To minimize damage to the cables, take care that they do not pass sharp edged metal.

Lay all cables as far away as possible from the ignition cables, modules in the boot and 
under the key dashboard, as these create interference.

Add a fuse into the (+) power cable in a distance of not more than 30 cm from the 
positive battery pole.

Keep the length of the power wires as short as possible. It is better to use power cables 
which are short and then longer speaker cables.

In order to reduce interference, also pay attention to the instructions.

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INTRODUCTION

INSTALLATION INSTRUCTIONS

FEATURES

4 channels mosfet high power amplifier 
2 Ohm stable stereo
4 Ohm bridged stable
Gain (input level) controls
Bass boost switch
Variable high/low pass
Thermal protection
Short circuit protection

MODE

4CH

2CH

GAIN

MIN

MAX

CH2

CH4

INPUT

 

LPF

50Hz 250Hz

HPF

120Hz 3KHz

GAIN

MIN

MAX

LPF

50Hz 250Hz

HPF

120Hz 3KHz

CH1

CH3

CH1/CH2

CH3/CH4

PWR

/

PRT

HPF 

FLAT 

LPF

CROSSOVER

12dB 

BASS BOOST

6dB 

0dB 

0dB 

BASS BOOST

6dB 

12dB  LPF 

FLAT 

HPF

CROSSOVER

G1-50x4G

CH1

CH4

CH3

BRIDGED

BRIDGED

CH2

FUSES

+12V               REM               GND

G1-50x4G

Summary of Contents for G1-50X4G

Page 1: ......

Page 2: ...e with sufficient dimensions in order to minimize power losses and provide a higher audio output of the system For safety reasons route all power and speaker wiring by using the exiting wire channels To minimize damage to the cables take care that they do not pass sharp edged metal Lay all cables as far away as possible from the ignition cables modules in the boot and under the key dashboard as th...

Page 3: ...quate voltage source and minimize noise Connecting the battery terminal lead to any other point such as the fuse block will reduce the power output and may cause noise and distortion Use only 12 gauge or thicker smaller gauge wire for this lead and connect it to the terminal of the battery after all other wiring is completed GROUND CONNECTION The ground terminal GND connection is also critical to ...

Page 4: ...ich means the same as Connecting the speakers in this manner ensures that the two speaker cones will move in and out together according to the original recording If one of the two speakers is reversed stereo imaging and bass response will be degraded CH1 CH3 CH2 CH4 BRIDGED MODE SPEAKER 2 4 Ohm SPEAKER 2 4 Ohm SPEAKER 4 8 Ohm SPEAKER 4 8 Ohm SPEAKER 2 4 Ohm SPEAKER 2 4 Ohm MODE 4CH 2CH GAIN MIN MA...

Page 5: ...en made correctly GAIN INPUT LEVEL CONTROL The input level control allows the system to work well within a wide range of output level Choose the adjustment in the way that you achieve a sound most possibly without any distortion As a guideline the following procedure is recommended If you use several amplifiers the adjustment has to be made for each set separately Tune in the volume of your car ra...

Page 6: ...ut of the radio can be laid togetherwith the signal cables Avoid ground loops by laying the ground wiring of all components to a center point in a star like way You can find the best central point in measuring the voltage directly at the battery Now compare this voltage value with the chosen ground point and the terminal of the amplifier If the measured voltage in only less different you ve found ...

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