INstructIoN maNual
4 cHaNNEl amPlIFIEr
PAGE 2 INSTRUCTION MANUAL GA9800
coNtENts
GME strongly recommends that you keep this manual
in a safe place for future reference
ACCESSORIES SUPPLIED ........................2
INTRODUCTION ..............................2
FEATURES ..................................2
PROTECTION CIRCUITRY .......................2
2 OHM PROTECTION ..........................3
ELECTRICAL WIRING ..........................3
FUSES .....................................3
MOUNTING THE AMPLIFIER .....................3
POWER SUPPLY CONNECTIONS ..................3
FOUR CHANNEL INSTALLATION WIRING
1. Low input wiring 2 channel ....................4
2. High input wiring ...........................5
3. Low input wiring 4 channel ....................6
SPEAKER CONFIGURATION
1. 4/8-way speaker ............................7
2. 2-way speaker and subwoofer ..................8
3. 2-way speaker and 2-way subwoofer .............9
4. 4-way speaker and 2-way subwoofer .............9
AMPLIFIER INSTALLATION ......................10
REMOTE CONTROL ..........................10
PRECAUTIONS ..............................10
SPECIFICATIONS .............................10
TROUBLESHOOTING ..........................11
WARRANTY ..........................Back Page
INtroDuctIoN
Congratulations on your purchase of the GME GA9800
marine audio amplifier.
This amplifier is designed to the highest level of quality and
will offer you years of listening enjoyment.
Thank you for making GME your choice for marine audio
equipment.
FEaturEs
• Thermal/Short/Over Load Protection
• 2 Ohm stable (4 Ohm bridged)
• P.W.M.MOSFET power supply
• Power and distress indicator
• Variable low-pass (50–120 Hz)
• Heavy duty heat sink
• Adjustable input sensitivity
• Soft delayed remote turn-on
• Low level and high level input
• Nickel plated terminal strips/RCA jacks
• Built-in remote jack
• Built-in electronic Crossover and an adjustable
Low Pass Control
• Designed with 100% MOSFET Power supply, ensuring
extremely quick switching response and self-protection.
ProtEctIoN cIrcuItry
The amplifier protection circuitry will disable the amplifier if
input overload, short circuit or extremely high temperature
conditions are detected. When the protection mode is in
operation, the LED indicator on the front panel will be
illuminated, indicating the amplier has gone into a
self-preservation mode.
lf you observe that the protection LED is lit, please check
the system carefully to determine what has caused the
protection circuit to engage. The amplifier can be reset by
turning the remote power OFF and then ON again. lf the
amplier shuts down due to a thermal overload condition,
please allow it to cool down before restarting. lf the shut
down is due to an input overload or short circuit, be sure
to repair these conditions before attempting to power up
the amplifier again.
accEssorIEs suPPlIED
• Subwoofer wire
• Remote Control
• Mounting screws
• Allen keys
• Instruction Manual
If any items are missing or
damaged, please contact your
retailer or place of purchase.
GA9800 INSTRUCTION MANUAL PAGE 3
2 oHm ProtEctIoN
Your GME GA9800 amplifier is designed to operate
efficiently at loads down to 2 Ohm. You can install four
8 Ohm speakers per channel when using parallel wiring,
increasing the number of woofers per channel at low
frequencies [up to 100 Hz]. This produces an acoustic
coupling effect, increasing your power output by 3 dB
per speaker, or the equivalent of additional 10W to
each speaker.
When operating at 2 Ohm, the amplier will increase its
output power by approximately 50%. The current draw will
also increase by about the same amount, so be sure you
have enough current to run the amplifiers into a 2 Ohm
load, lf you lack adequate current, your music reproduction
will be distorted.
NOTE: The gain control of any audio amplifier should
not be mistaken for a volume control. lt is a sophisticated
device, designed to match the output level of your audio
source unit to the input level of the amplifier. Do not adjust
this input level to maximum unless your input level requires
it. lgnoring these instructions will result in an input overload
to the amplier, and excessive audio distortion. lt can also
cause the protection circuit to engage.
ElEctrIcal wIrINg
Your GME amplifier is equipped with easy top-access screw
terminals. These terminals are NICKEL Plated in order to
ensure excellent electrical contact, and to resist corrosion.
When making electrical connections to the amplier,
please observe the following:
• Use at least 4 gauge or heavier wires for power and
ground connections.
• Wire the amplier directly to the battery.
• For the ground connection, use the shortest possible wire
to a good chassis ground point.
• Wire the remote connection to the auto start lead of
your stereo.
FusEs
Power fuses protect both the amplifier and the electrical
system of your vessel from fault conditions. lf you must
replace the fuse in your amplier, use a fuse of exactly the
same type and rating. A different type or rating of fuse may
result in damage or fire.
mouNtINg tHE amPlIFIEr
Mark the location for the mounting screw holes by
positioning the amplifier where you wish to install it and
use a scribe [or one of the mounting screws] inserted in
each mounting hole to mark the mounting surface. lf the
mounting surface is carpeted, measure the hole centres
and mark with a felt tip pen.
Drill pilot holes in the mounting surface for the mounting
screws and insert the mounting screws into these holes.
Tighten them securely.
NOTE: Be sure to take note of any wires, lines or other
devices in your vessel which may be located behind any
mounting surface!
PowEr suPPly coNNEctIoNs
The GA9800 amplifier is designed to work within 10 to
16 Volts DC. Before any wires are connected, the vessel’s
electrical system should be checked for correct voltage
supply with the help of a volt meter.
1. Check the voltage at the battery terminals with the
ignition in the OFF position. The Volt Meter should
read no less than 12 Volts.
2. Check the battery with the engine running between
1500 and 2000 rpms. The Volt Meter should now read
between 13.5 and 14.5 Volts.
NOTE: lf your vessel’s electrics are not up to these
specications, we recommend it to be checked by an
Marine Electrician before you continue with the installation.
PAGE 4 INSTRUCTION MANUAL GA9800
4 cHaNNEl INstallatIoN wIrINg
1. Low Input Wiring Configuration 2 Channel
POWER
+12V
GNDREM
3/4CH
160HZ
REM
8V 0.3V 0dB20HZ55HZ 40HZ
40HZ
600HZ+18dB
HP LPFULL
1/2CH
40HZ 160HZ
8V 0.3V
0dB20HZ55HZ
40HZ 1KHZ
+18dB
PRT
HP LPFULL
3/4CH
LEVEL
BASS SUB
HP
LP
LP
X-OVER
X-OVER
SONICBOOST
LEVEL
BASS SUB
HP
SONICBOOST
R
2CH
1CH 3CH
4CH
OUTPUT
INPUT
PWR
1+ 1-
2- 2+
3+ 3- 4- 4+
INPUTSHIGH
2CH 4CH
INPUT MODE
2CH 4CH
INPUT MODE
Switch in 2CH Position
To Audio Outputs of head unit or signal
processor with Stereo Inputs
Chassy ground point
To Remote Turn-On
terminal of head unit
To inputs of
Satellite Amplifier.
Fuse
Battery
INPUT MODE
SWITCH SETTING
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