PRECAUTIONS
FUSE REPLACEMENT
- 3 -
- 4 -
WIRING INSTRUCTIONS
This unit is designed for negative ground 12V DC operation only.
Use speakers with an impedance of 2 or 4 Ohms (4 to 8 Ohm when used as bridged
amplifier)
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.
This power amplifier employs a protection circuit to protect the transistors and
speakers 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.
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 specified amperage fuse. Use of a higher amperage 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.
the speaker terminals are short circuited.
POWER CONNECTION
The battery terminal (BATT) 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 #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 the correct operation of the
amplifier. Use a wire of the same gauge as the power connection (#12 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 ap12V 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 #
18 gauge wire should be used for the speaker leads but in no case thinner than # 20
gauge. For leads is excess of 10 feet #16 gauge is recommended. 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.
Summary of Contents for G1-50X4G
Page 1: ......
