Pioneer GM-D9704 User Manual

Before you start

Before you start Setting the unit

Owner’s Manual Manual de instrucciones

BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER AMPLIFICADOR DE POTENCIA DE CUATRO CANALES EN PUENTE

GM-D8704 GM-D9704

English

Español

http://pioneer.jp/en/info/globalnetwork/

PIONEER CORPORATION

28-8, Honkomagome 2-chome, Bunkyo-ku, Tokyo 113-0021, JAPAN

PIONEER ELECTRONICS (USA) INC.

P.O. Box 1540, Long Beach, California 90801-1540, U.S.A. TEL: (800) 421-1404

PIONEER EUROPE NV

Haven 1087, Keetberglaan 1, B-9120 Melsele, Belgium/Belgique TEL: (0) 3/570.05.11

PIONEER ELECTRONICS ASIACENTRE PTE. LTD.

2 Jalan Kilang Barat, #07-01, Singapore 159346 TEL: 65-6378-7888

PIONEER ELECTRONICS AUSTRALIA PTY. LTD.

5 Arco Lane, Heatherton, Victoria, 3202 Australia TEL: (03) 9586-6300

PIONEER ELECTRONICS DE MÉXICO S.A. DE C.V.

Blvd.Manuel Ávila Camacho 138, 10 piso Col.Lomas de Chapultepec, México, D.F. 11000 TEL: 52-55-9178-4270 FAX: 52-55-5202-3714

先鋒股份有限公司

台北市內湖區瑞光路407號8樓

電話： 886-(0)2-2657-3588

先鋒電子（香港）有限公司

香港九龍長沙灣道909號5樓

電話： 852-2848-6488

Thank you for purchasing this PIONEER product

To ensure proper use, please read through this manual before using this product. It is especially important that you read and observe WARNINGs and CAUTIONs in this manual.

Please keep the manual in a safe and accessible place for future reference.

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Visit us at the following site:

http://pioneer.jp/en/info/globalnetwork/

We offer the latest information about PIONEER CORPORATION on our website.

If you experience problems

Should this product fail to operate properly, please contact your dealer or nearest authorized Pioneer Service Station.

Before connecting/ installing the amplifier

WARNING

! Slots and openings in the cabinet are provided

for ventilation to ensure reliable operation of the product, and to protect it from overheating. To prevent fire hazard, the openings should never be blocked or covered with items (such as papers, floor mat, cloths).

! This unit is for vehicles with a 12 V battery and

negative grounding. Before installing in recreational vehicles, trucks or buses, check the battery voltage.

! When installing this unit, make sure to con-

nect the ground wire first. Ensure that the ground wire is properly connected to metal parts of the car’s body. The ground wire of the

one of this unit must be connected to the car separately with different screws. If the screw for the ground wire loosens or falls out, it could result in fire, generation of smoke or malfunction.

! Be sure to install the fuse to the battery wire. ! Always use a fuse of the rating prescribed.

The use of an improper fuse could result in overheating and smoke, damage to the product and injury, including burns.

! Check the connections of the power supply

and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. Determine and resolve the cause, then replace the fuse with and identical equivalent.

! Always install the amplifier on a flat surface.

Do not install the amplifier on a surface that is not flat or on a surface with a protrusion. Doing so could result in malfunction.

! When installing the amplifier, do not allow

parts such as extra screws to get caught between the amplifier and the automobile. Doing so could cause malfunction.

! Do not allow this unit to come into contact

with liquids. Electrical shock could result. Also, damage to this unit, smoke, and overheating could result from contact with liquids. The surfaces of the amplifier and any attached speakers may also heat up and cause minor burns.

! In the event of any abnormality, the power

supply to the amplifier is cut off to prevent equipment malfunction. If this occurs, switch the system power off and check the power supply and speaker connections. If you are unable to determine the cause, please contact your dealer.

! Always disconnect the negative * terminal of

the battery beforehand to avoid the risk of electric shock or short circuit during installation.

! Do not attempt to disassemble or modify this

unit. Doing so may result in fire, electric shock or other malfunction.

! When installing the amplifier, make sure to

leave space around the amplifier for ventilation to improve heat radiation. And install to a location where it cannot be touched during operation.

CAUTION

! Always keep the volume low enough to hear

outside sounds.

! Extended use of the car stereo while the en-

gine is at rest or idling may exhaust the battery.

! This product is evaluated in moderate and tro-

pical climate condition under the Audio, video and similar electronic apparatus - Safety requirements, IEC 60065.

! The graphical symbol

product means direct current.

placed on the

About the protection function

This product has protection function. When this product detects something abnormal, the following functions will operate to protect the product and speaker output. ! The POWER/PROTECT indicator will turn red

and the amplifier will shut down in the situations outlined below. — If the temperature inside the amplifier gets

too high.

— If a DC voltage is applied to the speaker

output terminal.

! The POWER/PROTECT indicator will turn red

and the output will be muted in the situations outlined below. — If the speaker output terminal and speaker

wire are short-circuited.

What’s what

GM-D8704

Front side

Rear side

GM-D9704

Front side

Rear side

To adjust the switch, use a flathead screwdriver if needed.

1 BASS BOOST REMOTE (bass boost level remote control) jack

By connecting the Bass boost level remote control to the jack on the main unit, you will be able to select a bass boost level from 0 dB to 18 dB. ! Bass boost level setting applies only to

CHANNEL B (channel B) output.

<5707000013010V> ES

Setting the unit

Setting the unit Connecting the units

Connecting the units

! For instruction of connecting the bass

boost remote control to the amplifier, see the Connection diagram.

2 FREQ (cut off frequency) control

Cut off frequency selectable from 40 Hz to 500 Hz if the LPF/HPF select switch is set to LPF or HPF.

3 GAIN (gain) control

Adjusting gain controls CHANNEL A (channel A) and CHANNEL B (channel B) helps align the car stereo output to the Pioneer amplifier. Default setting is the NORMAL position. If the output remains low, even when the car stereo volume is turned up, turn the controls to a lower level. If distortion occurs when the car stereo volume is turned up, turn these controls to a higher level. ! If using only one input plug, set the gain

controls for speaker outputs A and B to the same position.

! For use with an RCA equipped car stereo

(standard output of 500 mV), set to the NORMAL position. For use with an RCA equipped Pioneer car stereo, with maximum output of 4 V or more, adjust level to match that of the car stereo output.

! For use with an RCA equipped car stereo

with output of 4 V, set to the H position.

4 LPF (low-pass filter)/HPF (high-pass filter) select switch

Switch the settings based on the connected speaker. ! When the Subwoofer is connected:

Select LPF. This eliminates high range frequency and outputs low range frequency.

! When the full range speaker is con-

nected: Select HPF or OFF. HPF eliminates low range frequency and output high range frequency. OFF outputs the entire frequency range.

5 INPUT SELECT (input select) switch

Select 2CH for two-channel input and 4CH for four–channel input.

6 POWER/PROTECT indicator

The power indicator lights up to indicate power ON. ! If something is not normal, the indicator

turns red.

Setting gain properly

! Protective function included to prevent

malfunction of the unit and/or speakers due to excessive output, improper use or improper connection.

! When outputting high volume sound etc.,

this function cuts off the output for a few seconds as a normal function, but output is restored when the volume of the head unit is turned down.

! A cut in sound output may indicate impro-

per setting of the gain control. To ensure continuous sound output with the head unit at a high volume, set amplifier gain control to a level appropriate for the preout maximum output level of the head unit, so that volume can remain unchanged and to control excess output.

! Despite correct volume and gain settings,

the unit sound still cuts out periodically. In such cases, please contact the nearest authorized Pioneer Service Station.

Gain control of this unit

Preout level: 2 V (Standard: 500 mV)

Preout level: 4 V

Above illustration shows NORMAL gain setting.

Relationship between amplifier gain and head unit output power

If amplifier gain is raised improperly, this will simply increase distortion, with little increase in power.

Signal waveform when outputting at high volume using amplifier gain control

If the signal waveform is distorted due to high output, even if the amplifier gain is raised, the output power will change only slightly.

Connection diagram

1 Battery wire (sold separately)

! The maximum length of the wire be-

tween the fuse and the positive + terminal of the battery is 30 cm.

! For the wire size, refer to Connecting the

power terminal. The battery wire, the

ground wire and the optional direct ground wire must be same size. After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive + terminal of the battery.

2 Fuse 80 A (GM-D8704) / 100 A (GM-D9704)

(sold separately) Each amplifier must be separately fused at 80 A (GM-D8704) / 100 A (GM-D9704).

3 Positive + terminal 4 Negative (*) terminal 5 Battery (sold separately) 6 Ground wire, Terminal (sold separately)

The ground wires must be same size as the battery wire. Connect to metal body or chassis.

7 Car stereo with RCA output jacks (sold sepa-

rately)

8 External output

If only one input plug is used, do not connect anything to RCA input jack B.

9 Connecting wire with RCA pin plugs (sold se-

parately)

a RCA input jack A b RCA input jack B c Amplifier with RCA input jacks (sold sepa-

rately)

d RCA output jack

Outputs the signal input to CH A.

e Speaker output terminals

Please see the following section for speaker connection instructions. Refer to Connections when using the speaker input wire.

f System remote control wire (sold separately)

Connect male terminal of this wire to the system remote control terminal of the car stereo. The female terminal can be connected to the auto-antenna relay control terminal. If the car stereo lacks a system remote control terminal, connect the male terminal to the power terminal via the ignition switch.

g Fuse 30 A × 2 (GM-D8704) / 40 A × 2 (GM-

D9704)

h Front side i Rear side j Bass boost level remote control wire (5 m) k Bass boost level remote control

Note

INPUT SELECT (input select) switch must be set. For details, see Setting the unit.

Before connecting the amplifier

WARNING

! Secure the wiring with cable clamps or adhe-

sive tape. To protect the wiring, wrap sections in contact with metal parts in adhesive tape.

! Never cut the insulation of the power supply

to feed power to other equipment. Current capacity of the wire is limited.

CAUTION

! Never shorten any wires, the protection circuit

may malfunction.

! Never wire the speaker negative cable directly

to ground.

! Never band together multiple speaker’s nega-

tive cables.

! If the system remote control wire of the ampli-

fier is connected to the power terminal via the ignition switch (12 V DC), the amplifier will remain on with the ignition whether the car stereo is on or off, which may exhaust battery if the engine is at rest or idling.

! Install and route the separately sold battery

wire as far as possible from the speaker wires. Install and route the separately sold battery wire, ground wire, speaker wires and the amplifier as far away as possible from the antenna, antenna cable and tuner.

About bridged mode

! Do not install or use this amplifier by wiring

speakers rated at 2 W (or lower) in parallel to achieve a 1 W (or lower) bridged mode (Diagram B). Amplifier damage, smoke, and overheating could result from improper bridging. The amplifier surface could also become hot to the touch and minor burns could result. To properly install or use a bridged mode and achieve a 2 W load, wire two 4 W speakers in parallel with Left + and Right * (Diagram A) or use a single 2 W speaker. In addition, refer to the speaker instruction manual for information on the correct connection procedure.

! For any further enquiries, contact your local

authorized Pioneer dealer or customer service.

About suitable specification of speaker

Ensure speakers conform to the following standards, otherwise there is a risk of fire, smoke or damage. Speaker impedance is 2 W to 8 W,or4W to 8 W for two-channel and other bridge connections.

Subwoofer

Speaker channel Power

Four-channel output

Two-channel output

Three-channel Speaker output A

Three-channel Speaker output B

Other than subwoofer

Speaker channel Power

Four-channel output

Two-channel output

Three-channel Speaker output A

Three-channel Speaker output B

Nominal input: Min. 100 W (GM-D8704) Min. 130 W (GM-D9704)

Nominal input: Min. 300 W (GM-D8704) Min. 400 W (GM-D9704)

Nominal input: Min. 100 W (GM-D8704) Min. 130 W (GM-D9704)

Nominal input: Min. 300 W (GM-D8704) Min. 400 W (GM-D9704)

Max. input: Min. 200 W (GM-D8704) Min. 260 W (GM-D9704)

Max. input: Min. 600 W (GM-D8704) Min. 800 W (GM-D9704)

Max. input: Min. 200 W (GM-D8704) Min. 260 W (GM-D9704)

Max. input: Min. 600 W (GM-D8704) Min. 800 W (GM-D9704)

Connecting the units

Connecting the speakers

The speaker output mode can be four-channel, three-channel (stereo and mono) or two-channel (stereo or mono). Connect the speaker leads based on the mode and the figures shown below.

Four-channel output

1 Left 2 Right 3 Speaker output A 4 Speaker output B

Two-channel output (Stereo)

1 Speaker output (Right) 2 Speaker output (Left)

Two-channel output (Mono)

1 Speaker output (Mono)

Three-channel output

1 Left 2 Right 3 Speaker output A 4 Speaker output B (Mono)

Connections when using

the RCA input jack

Connect the car stereo RCA output jack and

the RCA input jack of the amplifier. ! The RCA output jack of this unit outputs

the signal that comes from The RCA input jack A.

Four-channel / Three-channel output

! Slide INPUT SELECT (input select) switch

to 4CH position.

1 RCA input jack A 2 RCA input jack B 3 Connecting wires with RCA plugs (sold sepa-

rately)

4 From car stereo (RCA output)

If only one input plug is used, e.g. when the car stereo has only one output (RCA output), connect the plug to RCA input jack A rather than B.

5 INPUT SELECT (input select) switch (4CH po-

sition)

1 RCA input jack A

For two-channel output, connect the RCA plugs to the RCA input jack A.

2 Connecting wire with RCA pin plugs (sold se-

parately)

3 From car stereo (RCA output) 4 INPUT SELECT (input select) switch (2CH

position)

Two-channel output (Stereo) / (Mono)

! Slide INPUT SELECT (input select) switch

to 2CH position.

Connections when using the speaker input wire

Connect the car stereo speaker output wires to the amplifier using the supplied speaker input wire with RCA pin cord.

Solderless terminal connections

! Since the wire will become loose over time,

it must be periodically inspected and tightened as necessary.

! Do not solder or bind the ends of the

twisted wires.

! Fasten while making sure to not to clamp

the insulating sheath of the wire.

! Use the supplied hexagonal wrench to

tighten and loosen the terminal screw of the amplifier and use it to securely fasten the wire. Be careful to avoid excessive tightening of this screw, which may damage

1 Car Stereo 2 Speaker output 3 Red: Right + 4 Black: Right * 5 Black: Left * 6 White: Left + 7 Speaker input wire with RCA pin cord

To the RCA input jack of this unit

Notes

! If speaker input wires from a headunit are

connected to this amplifier, the amplifier will automatically turn on when the headunit is turned on. When the headunit is turned off, the amplifier turns off automatically. This function may not work with some headunits. In such cases, please use a system remote control wire (sold separately). If multiple amplifiers are to be connected together synchronously, connect the head unit and all amplifiers via the system remote control wire.

! Connect the system remote control wire when

you wish to only turn on the car stereo, not the amplifier.

! This amplifier automatically selects an input

signal mode between the RCA level and the speaker level by detecting an input signal.

the wire.

Connecting the power terminal

WARNING

If the battery wire is not securely fixed to the terminal using the terminal screws, there is a risk of overheating, malfunction and injury, including minor burns.

! Always use the recommended battery and

ground wire, which is sold separately. Connect the battery wire directly to the car battery positive (+) terminal and the ground wire to the car body.

! Recommended wires size (AWG: American

Wire Gauge) is as follows. The battery wire, the ground wire and the optional direct ground wire must be same size.

! Use a wire of 8 AWG to 16 AWG wire for the

speaker wire.

Battery wire and ground wire size

GM-D8704

Wire length Wire size

less than 4.5 m 8 AWG

less than 7.2 m 6 AWG

less than 11.4 m 4 AWG

GM-D9704

Wire length Wire size

less than 2.2 m 8 AWG

less than 3.6 m 6 AWG

less than 6.4 m 4 AWG

1 Route battery wire from engine compartment to the vehicle interior.

! When drilling a cable pass-hole into the ve-

hicle body and routing a battery wire thorough it, take care not to short-circuit the wire damaging it by the cut edges or burrs of the hole.

After completing all other amplifier connections, finally connect the battery wire terminal of the amplifier to the positive + battery terminal.

1 Positive + terminal 2 Battery wire (sold separately)

The maximum length of the wire between the fuse and the positive + terminal of the battery is 30 cm.

3 Fuse 80 A (GM-D8704) / 100 A (GM-D9704)

(sold separately) Each amplifier must be separately fused at 80 A (GM-D8704) / 100 A (GM-D9704).

2 Use wire cutters or a utility knife to strip the end of the battery wire, ground wire and system remote control wire to expose about 10 mm of the end of each of the wires, and then twist the exposed ends of the wires.

Twist

10 mm

3 Connect the wires to the terminal.

Fix the wires securely with the terminal screws.

1 Battery wire 2 Power terminal 3 Ground wire 4 GND terminal 5 System remote control wire 6 System remote control terminal 7 Terminal screws

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