GMD7500M - Recepteur PIONEER - Free user manual and instructions

USER MANUAL GMD7500M PIONEER

Italiano Español DeutschThank you for purchasing this PIONEER product.

To ensure proper use, please read through this manual before using this product.

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

In case of trouble 3

About This Product 3

Before connecting/installing the amplifier 3

Setting gain properly 5

Connecting the units

Connection diagram 7

Before connecting the amplifier 7

Connecting the speakers 8

Connections when using the speaker input

Connecting the power terminal 9

Connecting the speaker output

Example of installation on the floor mat or

Additional information

2If you want to dispose this product, do not mix

it with general household waste. There is a se-

parate collection system for used electronic

products in accordance with legislation that re-

quires proper treatment, recovery and recy-

Private households in the member states of

the EU, in Switzerland and Norway may return

their used electronic products free of charge

to designated collection facilities or to a retai-

ler (if you purchase a similar new one).

For countries not mentioned above, please

contact your local authorities for the correct

By doing so you will ensure that your disposed

product undergoes the necessary treatment,

recovery and recycling and thus prevent po-

tential negative effects on the environment

Should this product fail to operate properly,

please contact your dealer or nearest author-

ized Pioneer Service Station.

This product is a mono amplifier for subwoofer. If

both L (left) and R (right) channels are connected

to the RCA input of this product, output is mixed

because this product is a mono amplifier.

installing the amplifier

! The use of a special red battery and ground

wire RD-223, available separately, is recom-

mended. Connect the battery wire directly to

the car battery positive terminal + and the

ground wire to the car body.

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

negative grounding. Before installing in re-

creational vehicles, trucks or buses, check the

! The black cable is ground. When installing

this unit, make sure to connect the ground

wire first. Ensure that the ground wire is prop-

erly 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.

! Use a fuse of the rating prescribed.

! Check the connections of the power supply

and speakers if the fuse of the separately sold

battery wire or the amplifier fuse blows. Deter-

mine and resolve the cause, then replace the

fuse with 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 be-

tween 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 over-

heating could result from contact with liquids.

The surfaces of the amplifier and any attached

speakers may also heat up and cause minor

English Section 01! 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 un-

able to determine the cause, please contact

! Disconnect the negative terminal of the bat-

tery before installation.

! Always keep the volume low enough to hear

! Extended use of the car stereo while the en-

gine is at rest or idling may exhaust the bat-

! Connect either of two subwoofers to the am-

plifier; 1: a subwoofer with a 250 W or larger

nominal input and an impedance 4 W,or2:a

subwoofer with a 420 W or larger nominal

input and an impedance 2 W. If the nominal

input and impedance are out of the above

ranges, the subwoofer may catch fire, emit

smoke or become damaged.

To adjust the switch, use a flathead screwdri-

The power indicator lights up to indicate

2 GAIN (gain) control

If output remains low, even when the car

stereo volume is turned up, turn controls to

lower level. If distortion occurs when the car

stereo volume is turned up, turn these con-

trols to higher level.

! 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 max.

output of 4 V or more, adjust level to

match that of the car stereo output.

! If you hear too much noise when using

the speaker input terminals, turn the

gain control to higher level.

3 BASS BOOST (bass boost level control)

You can select a bass boost level from 0 dB,

4 LPF (low-pass filter) switch

Switch the settings based on the connected

! When the Subwoofer is connected:

Select ON. This eliminates high range

frequency and outputs low range fre-

! When the full range speaker is con-

Select OFF. OFF outputs the entire fre-

5 LPF (low-pass filter) cut off frequency

You can select a cut off frequency from 40

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.

English Section 02Gain control of this unit

Above illustration shows NORMAL gain set-

Relationship between amplifier gain

and head unit output power

If amplifier gain is raised improperly, this will

simply increase distortion, with little increase

Signal waveform when outputting at

high volume using amplifier gain

Signal waveform distorted with high output, if

you raise the gain of the amplifier the power

changes only slightly.

02Connection diagram

1 Special red battery wire

RD-223 (sold separately)

After completing all other amplifier connec-

tions, finally connect the battery wire terminal

of the amplifier to the positive (+) battery

2 Ground wire (Black)

RD-223 (sold separately)

Connect to a clean, paint-free metal location.

3 Car stereo with RCA output jacks (sold sepa-

5 Connecting wire with RCA pin plugs (sold se-

7 System remote control wire (sold separately)

Connect male terminal of this wire to the sys-

tem 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 term-

inal via the ignition switch.

8 Speaker output terminals

Please see the following section for speaker

connection instructions. Refer to Connections

when using the speaker input wire on the next

Before connecting the

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 ca-

pacity of the wire is limited.

! 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 re-

main on with the ignition whether the car

stereo is on or off, which may exhaust battery

if the engine is at rest or idling.

Connecting the units

English Section 03! 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 am-

plifier as far away as possible from the anten-

na, antenna cable and tuner.

Connecting the speakers

Connect the speaker leads to suit the mode

according to the figures shown below.

the speaker input wire

Connect the car stereo speaker output wires

to the amplifier using the supplied speaker

input wire with RCA pin cord.

7 Speaker input wire with RCA pin cord

To the RCA input jack of this unit

! If speaker wires with an RCA pin cord 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 automati-

cally. This function may not work with some

headunits. In such cases, please use a sys-

tem remote control wire (sold separately). If

multiple amplifiers are to be connected to-

gether synchronously, connect the head unit

and all amplifiers via the system remote con-

! Connect the system remote control wire when

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

! This amplifier automatically selects an input

signal mode between the RCA level and the

speaker level by detecting an input signal.

Connecting the units

8 Section 03Connecting the power

! The use of a special red battery and ground

wire RD-223, available separately, is recom-

mended. Connect the battery wire directly

to the car battery positive terminal (+) and

the ground wire to the car body.

WARNING If the battery wire is not securely fixed to the term-

inal using the terminal screws, there is a risk of

overheating, malfunction and injury, including

1 Route battery wire from engine com-

partment to the vehicle interior.

After completing all other amplifier connec-

tions, finally connect the battery wire terminal

of the amplifier to the positive (+) battery

1 Positive (+) terminal

2 Engine compartment

5 Insert the O-ring rubber grommet into the

6 Drill a 14 mm hole into the vehicle body.

2 Twist the battery wire, ground wire

and system remote control wire. Twist 3 Attach lugs to wire ends. Lugs not sup-

4 Connect the wires to the terminal.

Fix the wires securely with the terminal

Connecting the units

English Section 034 Terminal screws

Connecting the speaker

1 Expose the end of the speaker wires

using nippers or a cutter by about 10 mm

2 Attach lugs to speaker wire ends. Lugs

3 Connect the speaker wires to the

speaker output terminals.

Fix the speaker wires securely with the term-

Connecting the units

10 Section 03Before installing the amplifier

! Do not use unauthorized parts as this may

! Do not install this unit where :

— it may interfere with operation of the vehi-

— it may cause injury to a passenger as a re-

sult of a sudden stop.

! Install tapping screws in such a way that the

screw tip does not touch any wire. This is im-

portant to prevent wires from being cut by vi-

bration of the car, which can result in fire.

! Place all cables away from moving parts, such

as the gear shift and seat rails.

! When drilling to install the amplifier, always

confirm no parts are behind the panel and

protect all cables and important equipment

(e.g. fuel/brake lines, wiring) from damage.

! To ensure proper heat dissipation of the ampli-

fier, ensure the following during installation:

— Allow adequate space above the amplifier

for proper ventilation.

— Do not cover the amplifier with a floor mat

! Place all cables away from hot places, such

as near the heater outlet.

! The optimal installation location differs de-

pending on the car model. Secure the ampli-

fier at a sufficiently rigid location.

! Check all connections and systems before

! After installing the amplifier, confirm that the

spare tire, jack and tools can be easily re-

Example of installation on

the floor mat or chassis

1 Place the amplifier in the desired instal-

Insert the supplied tapping screws (4 mm ×

18 mm) into the screw holes and push on the

screws with a screwdriver so they make an im-

print where the installation holes are to be lo-

2 Drill 2.5 mm diameter holes at the im-

prints either on the carpet or directly on

3 Install the amplifier with the use of

English Section 04Specifications

Power source 14.4 V DC (10.8 V to 15.1 V

Grounding system Negative type

Current consumption 18 A (at continuous power,

Average current drawn 5.2 A (4 W for one channel)

10.3 A (2 W for one channel)

Dimensions (W × H × D) ...245 mm × 56 mm × 200

Weight 2.1 kg (Leads for wiring not

Maximum power output 400 W × 1 (4 W)/800W×1

Continuous power output ...200 W × 1 (at 14.4 V, 4 W,20

Hz to 240 Hz, ≦ 1% THD)

400 W × 1 (at 14.4 V, 2 W,50

Load impedance 4 W (2 W to 8 W allowable)

Frequency response 10 Hz to 30 kHz (+0 dB, -3

Signal-to-noise ratio 95 dB (IEC-A network)

Distortion 0.03 % (10 W, 100 Hz)

Cut off frequency 40 Hz to 240 Hz

Cut off slope -12 dB/oct

RCA 6.5 V / 22 kW Speaker 10 V / 22 kW Notes

! Specifications and the design are subject to

modifications without notice.

! The average current drawn is nearly the maxi-

mum current drawn by this unit when an

audio signal is input. Use this value when

working out total current drawn by multiple

Additional information

2 Commande GAIN (gain)

Cosses non fournies.

ding is ingeschakeld (ON).

4 LPF-schakelaar (low pass filter)

PIONEER ELECTRONICS (USA) INC.

PIONEER ELECTRONICS AUSTRALIA PTY. LTD.

178-184 Boundary Road, Braeside, Victoria 3195, Australia

PIONEER ELECTRONICS OF CANADA, INC.

300 Allstate Parkway, Markham, Ontar io L3R 0P2, Canada

電話： (0852) 2848-6488

Published by Pioneer Corporat ion.

Copyright 2009 2008 by Pioneer

Corporation. All rights reserved.

Publié par Pioneer Corporation. Copyright