Pioneer GM-D7500M Operating Instruction
CLASS D MONO AMPLIFIER
AMPLIFICATEUR MONO DE CLASSE D
AMPLIFICADOR MONO CLASE D
GM-D7500M
English Français Español
Owner’s Manual
Mode d’emploi
Manual de instrucciones
Contents
Before you start
Information to User 3
After-sales service for Pioneer products 3
Visit our website 3
About This Product 3
Before connecting/installing the amplifier 4
Setting the Unit
What’s what 5
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
wire 8
Connecting the power terminal 9
Connecting the speaker output
terminals 10
Installation
Before installing the amplifier 11
Example of installation on the floor mat or
chassis 11
Additional information
Specifications 12
2
En
Before you start
Section
01
English
Thank you for purchasing this PIONEER product. It is designed to give you many years of
enjoyment.
PIONEER SUGGESTS USING A PROFESSIONAL INSTALLER DUE TO THE COMPLEXITY OF THIS PRODUCT. Please read all
instructions and WARNINGS in this manual
before attempting operation. Should you have
any questions, contact your nearest Pioneer
authorized dealer or installation specialist.
Information to User
Alteration or modifications carried out without
appropriate authorization may invalidate the
user’s right to operate the equipment.
After-sales service for
Pioneer products
Please contact the dealer or distributor from
where you purchased this unit for after-sales
service (including warranty conditions) or any
other information. In case the necessary information is not available, please contact the
companies listed below:
Please do not ship your unit to the companies
at the addresses listed below for repair without
advance contact.
U.S.A.
Pioneer Electronics (USA) Inc.
CUSTOMER SUPPORT DIVISION
P.O. Box 1760
Long Beach, CA 90801-1760
800-421-1404
CANADA
Pioneer Electronics of Canada, Inc.
CUSTOMER SATISFACTION DEPARTMENT
300 Allstate Parkway
Markham, Ontario L3R 0P2
1-877-283-5901
905-479-4411
For warranty information please see the Limited Warranty sheet included with this unit.
Visit our website
Visit us at the following site:
http://www.pioneerelectronics.com
1 Register your product. We will keep the details
of your purchase on file to help you refer to
this information in the event of an insurance
claim such as loss or theft.
2 Receive updates on the latest products and
technologies.
3 Download owner’s manuals, order product
catalogues, research new products, and
much more.
About This Product
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.
En
3
Section
01
Before you start
Before connecting/
installing the amplifier
WARNING
! Handling the cord on this product or cords as-
sociated with accessories sold with the product will expose you to chemicals listed on
proposition 65 known to the State of California
and other governmental entities to cause cancer and birth defect or other reproductive
harm. Wash hands after handling.
! The use of a special red battery and ground
wire RD-223, available separately, is recommended. 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 recreational vehicles, trucks or buses, check the
battery voltage.
! The black cable is ground. When installing
this unit, make sure to connect 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.
! 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. Determine 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 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.
! Disconnect the negative terminal of the bat-
tery before installation.
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.
! 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.
Important (Serial number)
The serial number is located on the bottom of
this unit. For your own security and convenience,
be sure to record this number on the enclosed
warranty card.
4
En
Setting the Unit
Section
02
English
What’s what
Front side
Rear side
To adjust the switch, use a flathead screwdriver if needed.
1 Power indicator
The power indicator lights up to indicate
power ON.
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 controls 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)
switch
You can select a bass boost level from 0 dB,
6 dB and 12 dB.
4 LPF (low-pass filter) switch
Switch the settings based on the connected
speaker.
! When the Subwoofer is connected:
Select ON. This eliminates high range
frequency and outputs low range frequency.
! When the full range speaker is con-
nected:
Select OFF. OFF outputs the entire frequency range.
5 LPF (low-pass filter) cut off frequency
control
You can select a cut off frequency from 40
Hz to 240 Hz.
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.
En
5
Section
02
Setting the Unit
Gain control of this unit
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
Signal waveform distorted with high output, if
you raise the gain of the amplifier the power
changes only slightly.
6
En
Connecting the units
Section
03
English
Connection diagram
1 Special red battery wire
RD-223 (sold separately)
After completing all other amplifier connections, finally connect the battery wire terminal
of the amplifier to the positive (+) battery
terminal.
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-
rately)
4 External output
5 Connecting wire with RCA pin plugs (sold se-
parately)
6 RCA input jack
7 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.
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
page.
9 Fuse (40 A)
a Fuse (30 A) × 2
b Grommet
c Rear side
d Front side
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’snega-
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.
En
7
Section
03
Connecting the units
! 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.
Connecting the speakers
Connect the speaker leads to suit the mode
according to the figures shown below.
One-channel output
1 Subwoofer
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
Note
! 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 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.
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.
1 Car Stereo
2 Speaker output
3 Red: Right +
8
En
Connecting the units
Section
03
English
Connecting the power
terminal
! The use of a special red battery and ground
wire RD-223, available separately, is recommended. 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 terminal using the terminal screws, there is a risk of
overheating, malfunction and injury, including
minor burns.
1 Route battery wire from engine compartment to the vehicle interior.
After completing all other amplifier connections, finally connect the battery wire terminal
of the amplifier to the positive (+) battery
terminal.
2 Twist the battery wire, ground wire
and system remote control wire.
Twist
3 Attach lugs to wire ends. Lugs not supplied.
Use pliers, etc., to crimp lugs to wires.
1 Lug
2 Battery wire
3 Ground wire
4 Connect the wires to the terminal.
Fix the wires securely with the terminal
screws.
1 Positive (+) terminal
2 Engine compartment
3 Vehicle interior
4 Fuse (30 A) × 2
5 Insert the O-ring rubber grommet into the
vehicle body.
6 Drill a 14 mm hole into the vehicle body (1/2
in.) .
1 System remote control terminal
2 GND terminal
3 Power terminal
En
9
Section
03
Connecting the units
4 Terminal screws
5 Battery wire
6 Ground wire
7 System remote control wire
Connecting the speaker
output terminals
1 Expose the end of the speaker wires
using nippers or a cutter by about 10 mm
(3/8 in.) and twist.
Twist
1 Terminal screws
2 Speaker wires
3 Speaker output terminals
2 Attach lugs to speaker wire ends. Lugs
not supplied.
Use pliers, etc., to crimp lugs to wires.
1 Lug
2 Speaker wire
3 Connect the speaker wires to the
speaker output terminals.
Fix the speaker wires securely with the terminal screws.
10
En
Installation
Section
04
English
Before installing the amplifier
WARNING
! Do not use unauthorized parts as this may
cause malfunctions.
! Do not install this unit where :
— it may interfere with operation of the vehi-
cle.
— 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 important to prevent wires from being cut by vibration 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.
CAUTION
! 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
or carpet.
! 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 amplifier at a sufficiently rigid location.
! Check all connections and systems before
final installation.
! After installing the amplifier, confirm that the
spare tire, jack and tools can be easily removed.
Example of installation on
the floor mat or chassis
1 Place the amplifier in the desired installation location.
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 imprint where the installation holes are to be located.
2 Drill 2.5 mm (1/8 in.) diameter holes at
the imprints either on the carpet or directly
on the chassis.
3 Install the amplifier with the use of
supplied tapping screws (4 mm × 18 mm).
1 Tapping-screws (4 mm × 18 mm)
2 Drill a 2.5 mm (1/8 in.) diameter hole
3 Floor mat or chassis
En
11
Loading...