GME 4 channel amp manual

GA9800 4 CHANNEL AMPLIFIER

INSTRUCTION MANUAL

gme strongly recommends that you keep this manual in a safe place for future reference

CONTENTS ACCESSORIES SUPPLIED. . . . . . . . . . . . . . . . . . . . . 2

3. Low input wiring 4 channel. . . . . . . . . . . . . . . . . 6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

AMPLIFIER INSTALLATION. . . . . . . . . . . . . . . . . . . 10 Remote Control . . . . . . . . . . . . . . . . . . . . . . . 10 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . 11 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . Back Page

Accessories supplied • Subwoofer wire

• Allen keys

• Remote Control

• Instruction Manual

If any items are missing or damaged, please contact your retailer or place of purchase.

• Mounting screws

• Built-in remote jack

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 PA G E 2

• 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 amplifier 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 amplifier 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.

i n s t ru c t i o n m a n ua l

GA9800

2 ohm protection

MOUNTING THE AMPLIFIER

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 amplifier 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 amplifier, 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 amplifier, please observe the following:

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 specifications, we recommend it to be checked by an Marine Electrician before you continue with the installation.

• U se at least 4 gauge or heavier wires for power and ground connections.

• Wire the amplifier directly to the battery.

• F or the ground connection, use the shortest possible wire to a good chassis ground point.

• W ire 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 amplifier, use a fuse of exactly the same type and rating. A different type or rating of fuse may result in damage or fire.

GA9800

i n s t ru c t i o n m a n ua l

PA G E 3

PA G E 4

4CH

i n s t ru c t i o n m a n ua l

4CH

PWR

4-

4+

1+ 12- 2+

HIGH INPUTS

3+ 3-

R

OUTPUT

2CH

1CH

INPUT

INPUT MODE SWITCH SETTING

To inputs of Satellite Amplifier.

2CH

INPUT MODE

2CH

INPUT MODE

Switch in 2CH Position

4CH

3CH

0.3V

0.3V

Battery

8V

LEVEL

8V

LEVEL

0dB

+18dB

20HZ 55HZ

SUB SONIC

20HZ 55HZ

SUB SONIC

Fuse

+18dB

BASS BOOST

0dB

BASS BOOST

+12V

HP

REM GND

FULL LP

X-OVER

HP FULL LP

X-OVER

POWER

1KHZ

1/2CH

40HZ

HP

40HZ 600HZ

HP

3/4CH

PRT

REM 3/4CH

To Remote Turn-On terminal of head unit.

Chassy ground point

40HZ 160HZ

LP

40HZ 160HZ

LP

To Audio Outputs of head unit or signal processor with Stereo Inputs.

1. Low Input Wiring Configuration 2 CHANNEL

4 Channel installation wiring

GA9800

GA9800

2CH

4CH

INPUT MODE

PWR

4-

4+

4CH

8V

4- 4+

2- 2+

0.3V

LEVEL

0.3V

LEVEL

8V

1+ 1-

2CH

3CH

3+ 3-

R

INPUT

Hi-Inputs

2- 2+

1CH

Hi-Inputs

1+ 1-

HIGH INPUTS

3+ 3-

OUTPUT

+18dB

+18dB

20HZ 55HZ

SUB SONIC

20HZ 55HZ

SUB SONIC

i n s t ru c t i o n m a n ua l 4+ 4– Chassis GND 3– 3+

2+ 2– Chassis GND 1– 1+

0dB

BASS BOOST

0dB

BASS BOOST

1KHZ

1/2CH

40HZ

HP

40HZ 600HZ

HP

3/4CH

HP

FULL LP

X-OVER

HP FULL LP

X-OVER

40HZ 160HZ

LP

40HZ 160HZ

LP

PRT

REM 3/4CH

2. High input wiring Configurations 2/4 channel

PA G E 5

PA G E 6

i n s t ru c t i o n m a n ua l

PWR

1+ 1-

4CH

4CH

4-

4+

2- 2+

R

OUTPUT

2CH

1CH

INPUT

4CH

3CH

INPUT MODE SWITCH SETTING

HIGH INPUTS

3+ 3-

Switch in 4CH Position

2CH

INPUT MODE

2CH

INPUT MODE

0.3V

0.3V

Battery

8V

LEVEL

8V

LEVEL

+18dB

0dB

+18dB

BASS BOOST

0dB

20HZ 55HZ

SUB SONIC

20HZ 55HZ

SUB SONIC

Fuse

BASS BOOST

To Audio Outputs of head unit or signal processor with Four Channel Outputs.

+12V

X-OVER

HP

REM GND

FULL LP

X-OVER

HP FULL LP

POWER

1KHZ

1/2CH

40HZ

HP

40HZ 600HZ

HP

3/4CH

PRT

REM 3/4CH

To Remote Turn-On terminal of head unit.

Chassy ground point

40HZ 160HZ

LP

40HZ 160HZ

LP

3. LOW INPUT WIRING CONFIGURATION 4 CHANNEL

GA9800

GA9800

GME 4 Ohm speaker

CH1-

i n s t ru c t i o n m a n ua l CH3-

CH4+

BRIDGED CH4-

GME 4 Ohm speaker

LEFT SPEAKER RIGHT SPEAKER REAR SPEAKERS

CH3+

SPEAKERS CH2+ CH2-

BRIDGED

RIGHT SPEAKER

+12V

FULL LP

REM GND

POWER

CH 1/2 Crossover Mode switch in Full Range position.

HP FULL LP

X-OVER

HP

X-OVER

CH 3/4 Crossover Mode switch in Full Range position.

CROSS OVER SWITCH SETTINGS

GME 4 Ohm speaker

FUSE

25

GME 4 Ohm speaker

CH1+

LEFT SPEAKER

FRONT SPEAKERS

Due to 2 Ohm amplifier stability, each speaker port can carry an extra set of 4 Ohm speakers as shown.

1. 4/8-Way Speaker Configuration

SPEAKER OUTPUT CONFIGURATION

25

PA G E 7

PA G E 8

GME 4 Ohm speaker

CH1+

CH2+ CH2CH3+

SPEAKERS CH3-

CH4+

CH4-

GME 4 Ohm speaker

PRT

FUSE

i n s t ru c t i o n m a n ua l +12V

FULL LP

REM GND

POWER

CH 1/2 Crossover Mode switch in High Pass position.

HP FULL LP

X-OVER

HP

X-OVER

CH 3/4 Crossover Mode switch in Low Pass position.

CROSS OVER SWITCH SETTINGS

GME Subwoofer 4 Ohm

25

SUBWOOFER

40HZ 160HZ

LP

BRIDGED

RIGHT SPEAKER

BRIDGED CH1-

LEFT SPEAKER

CH3/4 Remote Subwoofer Level Control

REM

2. 2-Way Speaker and Subwoofer Configuration

25

GA9800

3. 2-Way Speaker and 2-Way Subwoofer Configuration Low Pass filter inductor

GME 4 Ohm Speaker

FRONT SPEAKERS LEFT RIGHT SPEAKER SPEAKER

GME Subwoofer 4 Ohm

SUBWOOFER

GME 4 Ohm Speaker

4 CHANNEL AMPLIFIER TRI-MODE CHANNEL 1 & 2 BRIDGED MONO FOR CHANNEL 3 & 4.

High Pass filter capacitors

CH1-

CH2+ CH2-

POWER

FUSE

SPEAKERS

BRIDGED

BRIDGED CH1+

CH3+

CH3-

CH4+

25

25

LP

PRT

CH 3/4 Crossover Mode switch in Low Pass position.

GME Subwoofer 4 Ohm

REM

SUBWOOFER

40HZ 160HZ

REM GND

+12V

CH4-

X-OVER

Min. Speaker CROSS OVER Impedance SWITCH SETTINGS 4–8 Ohms

CH3/4 Remote Subwoofer Level Control

HP

FULL LP

X-OVER

HP FULL LP

CH 1/2 Crossover Mode switch in Full Range position.

4. 4-Way Speaker and 2-Way Subwoofer Configuration 4 CHANNEL AMPLIFIER TRI-MODE all 4 channels.

Low Pass filter inductor

All crossover settings in this mode should be full range.

GME 4 Ohm speaker

FRONT SPEAKERS RIGHT LEFT SPEAKER SPEAKER

FRONT SUBWOOFER

GME 4 Ohm speaker

High Pass filter capacitors

X-OVER

HP

GME Subwoofer 4 Ohm

FULL LP

X-OVER

SPEAKERS BRIDGED CH1+

CH1-

CH2+ CH2-

CH3+

FUSE

BRIDGED CH3-

CH4+

POWER +12V

CH4-

REM GND

25

25

HP FULL LP

High Pass filter capacitors

GME recommends the following component values for 12 dB Passive Crossover.

FREQUENCY

INDUCTOR

CAPACITOR

140 Hz

6.5 mH

220 uF

GA9800

GME 4 Ohm speaker

RIGHT LEFT SPEAKER SPEAKER REAR SPEAKERS

GME 4 Ohm speaker

Low Pass filter inductor i n s t ru c t i o n m a n ua l

GME Subwoofer 4 Ohm

REAR SUBWOOFER PA G E 9

AMPLIFIER installation SUBWOOFER Remote control

PRECAUTIONS Before you drill or cut any holes, investigate your vessel’s layout very carefully. Take care when you work near the gas tank, fuel lines, hydraulic line and electrical wiring.

Do not operate the amplifier when it is unmounted. Attach all audio system components securely within the vessel.

LINE CODE RE

MO

TE

Do not mount this amplifier so that the wire connections are unprotected or in a pinched condition, or likely to be damaged by nearby objects.

Before making or breaking power connections in your system, disconnect the vessel’s battery. Confirm that your head unit or other equipment is turned OFF while connecting the input jacks and speaker terminals. lf you need to replace the power fuse, only replace it with a fuse identical to that supplied with the system. Using a fuse of a different type or rating may result in damage to your system which isn’t covered by the manufacturer’s warranty.

Specifications GENERAL

Max. Power @ 2 Ohm: 4 x 367 Watts

RCA Input Model: Yes

RMS Power @ 4 Ohm: 4 x 65 Watts

Input Impedance: 20 K Ohm

Damping Factor: ≥ 200

Signal to Noise: ≥ 95 dB

T.H.D (4 Ohm): 0.05%

Channel Separation: ≥ 60 dB

Input Sensitivity Range: 300 mV – 8V

PHYSICAL

LP Variable Crossover: 40 – 160 Hz & 12 dB/octave

Dimensions: 254 mm (10”) (W) x 56 mm (2.2”) (H) x 381 mm (15”) (D)

Bandwidth: 10 Hz – 40 kHz

HP Variable Crossover: 40 – 600 Hz/ 1 kHz & 12 dB/octave

Phase: No

Fuse Rating: 2 x 25 Amp

Variable Bass Boost: 0 – +18 dB & 45 Hz

Variable Subsonic Filter: 20 – 55 Hz & 12 dB/octave

*All specifications are typical and subject to change without notice or obligation PA G E 1 0

i n s t ru c t i o n m a n ua l

GA9800

TROUBLESHOOTING PLEASE NOTE: Before moving your amplifier, refer to the list below and follow the suggested procedures. ALWAYS test the speakers and their connecting wires first.

PROBLEM

CHECK ITEM/solution

No output

1. Confirm all terminal strip connections are secure and tight.

2. Check both in-line and built-in fuses. Both the ‘+ 12V’ and the ‘REMOTE’ terminal must have + 12V referenced to chassis ground.

3. Confirm the audio signal source [radio, equalizer, etc.] is connected and is supplying output signal. To check if the amplifier is supplying signal, unplug the RCA cables from the signal source [but leave them plugged into amp]. Briefly tap the centre pin of each of the disconnected RCA plugs with your finger. This should produce a noise [feedback] in your speakers.

Only 1 Channel is working

1. Confirm all speaker strip connections are secure and tight.

2. Check the ‘BALANCE’ control on the head unit [or other source] to verify that it is set to its midpoint.

3. If you are using the Low Level RCA input, reverse the input plugs at the amplifier [switch the R with the L]. If the channel which is silent switches to the other side, the problem is either in the head unit/other source or the connecting cables.

Weak output

Re adjust the Input Sensitivity Control to better suit input signal.

Noise in the audio

1. If the noise is a ’whine’ whose pitch follows the engine speed, confirm that the amplifier and any other signal sources [head unit, etc.] are properly grounded.

2. If the noise is a ‘clicking’ or ‘popping’ noise whose rate follows the engine speed, this usually means the vessel is equipped with resistor spark plugs and wires, or that the ignition is in need of service.

3. Check the routing of the speaker and input wires to make sure they are not adjacent to wires which interconnect lights and other accessories. If the above steps fail to improve or clear noise interference, the system should be checked by a professional marine audio installer.

GA9800

i n s t ru c t i o n m a n ua l

PA G E 1 1

Standard communications contract warranty 1. Statutory Warranties 1.1 The Trade Practices Act Part V, Division 2A and other legislation

imply conditions, warranties and other obligations on us to

consumers that cannot be excluded, restricted or modified.

Those provisions apply to the extent required by law.

1.2 We exclude all other conditions, warranties and obligations

which would otherwise be implied concerning the activities

covered by this agreement.

1.3 We limit our liability where we are allowed to do so. Examples

of where we are allowed to limit liability are (a) you acquire goods from us for re-supply; (b) the goods or services we supply are not of a kind ordinarily acquired for personal, domestic or household use or consumption.

1.4 Where we are allowed to limit our liability, to the extent

permitted by law, our sole liability for breach of a condition,

warranty or other obligation implied by law is limited (a) in the case of goods we supply, to any one of the following as we decide (i) the replacement of the goods or the supply of

equivalent goods; (ii) the repair of the goods; (iii) the payment of the cost of repairing the goods or of

acquiring equivalent goods; (iv) the payment of the cost of having the goods

repaired; or

(b) in the case of services we supply, to any one of the following as we decide (i) the supplying of the services again; (ii) the payment of the cost of having the services

supplied again.

2. additional Warranties 2.1 The warranties in this clause are in addition to the statutory

warranties referred to in the previous clause.

2.2 We warrant our goods to be free from defects in materials

and workmanship for one year from the date of original

sale (or another period we agree to in writing). During this

period and as our sole liability to you under this warranty,

we agree to, at our option, either repair or replace goods

which we are satisfied are defective. We warrant

replacement parts for the remainder of the period

of warranty for the goods into which they

are incorporated.

2.3 We warrant our other repairs to be free from defects in

materials and workmanship for three months from the

date of the original repair. During this period and as

our sole liability to you for the repair, we agree to

repair or replace (at our option) repaired goods which

we are satisfied are defective.

2.4 We warrant that we will perform services with

reasonable care and skill and agree to investigate

any complaint made in good faith that we have

performed services unsatisfactorily. If we are satisfied

that the complaint is justified, and as our sole liability

to you under this warranty, we agree to supply those

services again at no extra charge to you.

2.5 If you want warranty service under this clause you

must give us an original or copy of the sales invoice

from the transaction or some other evidence showing

details of the transaction.

3. other limitations 3.1 You may not rely on any representation, warranty or

other provision by or for us which is not covered by

clause [ 1 ] or repeated in this agreement in clear

terms.

3.2 We are not liable (nor are our employees, contractors

and agents) for any damage, economic loss or

loss of profits whether direct, indirect, general, special

or consequential (a) arising out of any breach of any implied or

express term, condition or warranty; or

(b) suffered as a result of our negligence (or that

of our employees, contractors or agents)

- apart from liability as set out in the previous

two clauses.

3.3 The liability of a party under this agreement (whether

arising in contract, tort or by statute) is to be reduced

by the same proportion as represents the proportion

of the loss or damage caused or contributed to by the

other party, its contractors or agents.

A Division of

Standard Communications Pty. Ltd. Head Office: Sydney- Locked Bag 2086, North Ryde, NSW 1670, Australia. Tel: +61 (0)2 9844 6666 Fax : +61 (0)2 9844 6600 MELBOURNE ADELAIDE PERTH BRISBANE SYDNEY AUCKLAND 7 Micro Circuit Unit 1 Unit 1 Unit 1 Unit B Unit F DANDENONG STH 3165 14 Phillips Street 10-12 Harvard Way 89-101 Factory Road 22-24 College Street 35 Neil Park Tel: (03) 9798 0988 THEBARTON 5031 CANNING VALE 6155 OXLEY 4075 GLADESVILLE 2111 GREENMOUNT NZ Fax: (03) 9798 0177 Tel: (08) 8234 2633 Tel: (08) 9455 5744 Tel: (07) 3278 6444 Tel: (02) 9879 8888 Tel: (09) 274 0955

Fax: (08) 8234 5138 Fax: (08) 9455 3110 Fax: (07) 3278 6555 Fax: (02) 9816 4722 Fax: (09) 274 0959 For customers outside Australia and New Zealand please contact your local GME Distributor or email: export@gme.net.au

Web Site: www.gme.net.au Part Number: 310442 Drawing Number: 44405-1

i n s t ru c t i o n m a n ua l

GA9800