Thank you for purchasing our car Class-D Mono Block Amplifier Digital Technology.
These 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
PWR/PR T
GAIN
LPF
SUB SON IC
BASS BOO ST
PHASE
MIN MAX
50Hz 250Hz 0dB
12dB
0
180
OUTPU T
L
R
INPUT
20Hz 50Hz
30Hz 80Hz
0
0
FREQ
LEVEL
OUTPUT
MASTER
INPUT
SLAVE
REMOT E GAIN
G1-1000x1DG
SPEAK ER
OUTPU T
REM
GND
+12V
FUSES
G1-1000x1DG
FEATURES
Mono block mosfet power amplifier
2 Ohm mono stable
Variable low pass
Variable subsonic
Variable phase
Remote control
Thermal protection
Short circuit protec tion
This unit is designed for negative ground 12V DC operation only.
Use speakers with an impedance of 4 or 1 Ohms.
Avoid installing the unit where:
- It would be subject to high temperatures, such as from direct sunlight or hot air from
the heater.
- It would be exposed to rain or moisture.
- It would be subject to dust or dirt.
If your car is parked in direct sunlight and there is a considerable rise in temperature
inside the car, allow the unit to cool off before operation.
When installing the unit horizontally, be sure not to cover the heatsink fins with the
floor carpet.
If this unit is placed too close to the car radio, an interference may occur. In this case,
separate the amplifier from the car radio.
if the amplifier malfunctions. Do not attempt to test the protection circuits by covering
the heatsink or connecting improper loads.
Do not use the unit with a weak auto battery as its optimum performance depends on
a normal battery supply voltage.
For safety reasons, keep the volume of your car audio system moderate so that you
can still hear normal traffic sounds outside your car.
PRECAUTIONS
If the fuse blows, check the power connection and replace the fuse. If the fuse blows
again after replacement, there may be an internal malfunction. In this case, consult your
dealer.
WARNING:
Use the specifier amplifier fuse. Use of a higher amplifier fuse may cause serious damage.
PROTECTION CIRCUIT:
This amplifier is provided with a protection circuit which operates in the following cases
when:
the unit is overheated.
FUSE REPLACEMENT
- 3 - - 4 -
POWER CONNECTION
The battery terminal (+12V) must be connected directly to the positive terminal of the
vehicle battery to provide an adequate 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 #6 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 the correct operation of the
amplifier. Use a wire of the same gauge as the power connection (#6 or thicker) and connect
it between the ground terminal(GND) of the amplifier and a metal part of the vehicle close to
the mounting location. This wire should be as short as possible and any paint or rust at the
grounding point should be scraped away to provide a clean metal surface to which the end of
the ground wire can be screwed or bolted.
REMOTE TURN-ON CONNECTION
The amplifier is turned on by applying +12V to the remote turn-on terminal (REM). The wire
lead to this terminal should be connected to the "Auto-Antenna" lead from the car stereo
which will provide the +12V only when the car stereo is turned on . If the car stereo does not
provide an Auto-Antenna" lead, the remote turn-on lead may be wired to an "Accessory" or
"Radio" terminal in the car's fuse block. This will turn the amplifier on and off with the ignition
key, regardless of whether the car stereo is on or off. The remote turn-on lead does not carry
large currents. So #20 gauge wire may be used for this application.
SPEAKER CONNECTIONS
Depending on the type and number of speakers used with the amplifier wire them to the
speaker terminals as per the appropriate wiring diagram. For most applications # 10 gauge
wire should be used for the speaker leads . When wiring the speakers, pay careful attention to
the polarity of the terminals on the speakers and make certain they correspond to the polarity
of the corresponding terminals on the amplifier. Do not ground any speaker leads to the
chassis of the vehicle.
INPUT OUTPUT CONNECTIONS
If low -level outputs are provided from the car stereo ,it is recommended that the low-level
inputs be used
for lowest distortion and best performance .Use good quality shielded audio
cables with RCA plugs at both ends to connect the stereo to the amplifier and keep the cable
lengths to a minimum to avoid mouse.
The amplifier has : "Line out" RCA JACKS, can be connected with other amplifier.
WIRING INSTRUCTIONS
- 5 - - 6 -
Remote Subwoofer Control
MIN MAX
INPUT WIRING DIAGRAM
PWR/PRT
GAIN
LPF
SUB SONI C
BASS BOO ST
PHASE
MIN MAX
50Hz 250Hz 0dB
12dB
0
180
OUTPUT
L
R
INPUT
20Hz 50Hz
30Hz 80Hz
0
0
FREQ
LEVEL
OUTPUT
MASTER
INPUT
SLAVE
REMOTE G AIN
G1-1000x1DG
L R
Low level input: These are driven by the line output of your in dash radio or
intermediate signal processor, Separate Left and Right signals can be applied for
Stereo or Mono operation but both inputs must be driven with the same signal for
proper Bridged operation. If only mono signal is available, a "Y" adapter is
required.
STEREO MODE
SPEAK ER
OUTPU T
REM
GND
+12V
FUSES
G1-1000x1DG
SPEAK ER
OUTPU T
REM
GND
+12V
FUSES
G1-1000x1DG
SPEAKER
2~4 Ohm
SPEAKER
2~4 Ohm
SPEAKER
1~4 Ohm
Note that the monoblock speakers have been connected to the four terminal following
the (+) and (-) graphic. Your speaker terminals may be marked (+) and (-) or there may
be a red dot by one terminal which 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.
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 lose connection may cause a malfunction of the amplifier.
REM: The unit is turned on by applying +12 Volts to this terminal. This terminal does
not draw heavy current like the tow Power Terminals so a thinner connecting wire is
acceptable. Standard 18 GAUGE is fine and the standard color is yellow. If the radio is
equipped with a Power Antenna control wire, it can drive this terminal. If the Power
Antenna wire is already in use, you can still splice into 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 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 at least 10-Gauge (AWG.10).
POWER CONNECTION LEADS
After the amplifier has been installed and all connections have been made carefully and
securely, turn the radio on so that the amplifier is switched on automatically. After a short
power-on period, the amplifier reaches its full performance.
Now turn up the volume slowly using the volume control of the radio. If there is no sound
or only a distorted replay, switch off the radio immediately - the amplifier will also switch
off automatically - and check if all connections have been made correctly.
POWER LED INDICATOR
After the orderly connection of the three power terminals, the LED indicator shines green
and goes out with off.
PROTECT = LED PROTECTION INDICATOR
This set is equipped with an overload protection. immediately upon overloading (due to
much increased temperature) the overload protection is activated , and the red LED
indicator is shining. Through this the amplifier is protected against damage. In case of
thermal protection a cartain short cooling time must be allowed after which the amplifier
automatically resumes operation.
LEVEL CONTROL
The input level control allows the system to work well within a wide range of output level.
Choose the adjustment in te way that you achieve a sound most possibly without any
distortion. As a guideline the following procedure is recommended:
If you use several amplifier, the adjustment has to be made for each set separately tune in
the volume of your car radio to 2/3 of the maximum volume. Now turn the gain control of
the amplifier from "Min" to "Max" direction until you can hear distortions. Then turn the
level control a little back to "Min". The gain control adjustment is finished now.
Attention! If you use 1 Ohm speakers the overload protection is triggered out, turn
the gain control to "Min" direction, until the operation is free of trouble.
LPF CONTROL
This unit is low pass amplifier ,you may select the low pass crossover point between 50 Hz
250Hz.
PHASE SWITCH
0 0
To use this switch can select the phase 0 or 180 .
BASS BOOST CONTROLS
This amplifier has Bass controls for switching the boost 0dB or 12dB.
SUB SONIC
You may select the SUB SONIC point between 20Hz and
50Hz .
OPERATION
REM GND
POWER
BATTERY
DC 12V
To a metal
part of car
HEAD UNIT
FUSE
(+12V)
SENS OUT
12V
- 7 - - 8 -
GND(-) = GROUND CONNECTION
Connect the GND terminal to the chassis ground of your car and take care of best electric
and mechanic contact. In doing so, drill a hole in to the car chassis near the amplifier then
remove color, dirt or any other substance from the ground point . After that fasten the cable
end with added ring terminal by using a screw. Ensure that the ground connection is as short
as possible , Route the ground cables from the radio and all other equipment parts. like
equalizer. active crossover network or other amplifiers, to the same ground point.
+12 V = POWER SUPPLY
Connect the +12V terminal to the positive pole of the battery with a lead cable and add a fuse
into the power cable in a distance of not more then 30 cm from the battery. The lead cable's
diameter should be at least 8 mm' for a proper length .
REM(ON/OFF) REMOTE CONTROL
Connect the REM terminal to the automatic antenna connector of your car radio. Now when
turning on and off your car radio. the amplifier automatically switches ON and OFF. A cable
2
diameter of 0.5 mm is sufficient.
FUSE
The amplifier is equipped with a plug-in auto fuse protecting the set against fault conditions.
Do not use a fuse with a higher value and never bridge the fuse over, as this may lead to
irreparability damage so that ant any claim for warranty is denied.
No Function:
The connection cable is not connected correctly (=terminal BATT/GND/REM). Ensure
that all connections and mechanic contact and that the jacket has been removed. The
fuse is defective-pay attention to the correct value of a new fuse!
No Sound :
Speaker cable or speaker plug are not connected correctly.
LED Protection Shines :
If you use a 1 Ohm speaker , the set is overloaded, then turn the gain control to "min" until
the operation is free of trouble.
Poor Sound Quality (Distortions) :
The speakers are overloaded ,therefore turn down the volume level and check the
GAIN control positions.
HOW TO PROCEED IN CASE OF FAULTS
OPERATION
All cables are sources of interference or gather them. The power cable and Cinch/RCA
audio cable are very prone to interference; the remote cables are less prone. There is
often interference caused by the generator (piping), ignition (cracking) or other car
electronic parts. Most of these problems can be eliminated by correct and careful
cabling. In doing so, there are the following guidelines:
Use only a screenedio audio cable for the wiring between "Line input" of the amplifier
and RCA or DIN output of the radio.
Lay the signal, speaker and power cables separately with enough distance from
another and also from each other car cable. If not possible, you can lay the circuit and
ground cable together with the serial cables. Audio and speaker cable should be as far
away from these as possible. The REM cable to the automatic antenna output of the
radio can be laid together with 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 the
correct central. Otherwise you have to look for another point. You should measure
with the ignition being switched on and additionally switched on consumers (rear
window heating and light).
If there are pickups from external electrical sources into the speaker cables, divide the
core leads and twist them together.
If there are noises from the car electrics, add an interference suppression choke into
the power wiring.
If there are huming noises, uses, use thicker ground cables or add further ground
cables to the chassis.
To reduce contact resistance and bad and loose contacts, please tin the cable ends or
use multi core cable ends, spade terminals or others. Chrome Plated spade terminal
are free of corrosion and have the lowest contact resistance.
Should all these meaures be without any success, the use of a ground loop isolator may
solve the problem.
INTERFERENCE
WARNING:
(1)Don't short the SPEAKER OUT and terminals or connection wires, that will
damage the amplifier.
(2)If you want to use your radio ,suggest you turn off this amplifier ,prevent to disturb
your radio.
+
__
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65- C1170 -MA
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