Pioneer GM-4000F Owner's Manual

BRIDGEABLE FOUR-CHANNEL
POWER AMPLIFIER
AMPLIFICADOR DE POTENCIA DE
CUATRO CANALES EN PUENTE
Owner's Manual
GM-4000F
Manual del Propietario
PIONEER CORPORATION
4-1, MEGURO 1-CHOME, MEGURO-KU, TOKYO 153-8654, 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
TEL: (0) 3/570.05.11
PIONEER ELECTRONICS ASIACENTRE PTE. LTD.
253 Alexandra Road, #04-01, Singapore 159936
TEL: 65-6472-1111
PIONEER ELECTRONICS AUSTRALIA PTY. LTD.
178-184 Boundary Road, Braeside, Victoria 3195, Australia
TEL: (03) 9586-6300
Published by Pioneer Corporation.
PIONEER ELECTRONICS OF CANADA, INC.
Copyright © 2004 by Pioneer Corporation.
300 Allstate Parkway, Markham, Ontario L3R OP2, Canada
All rights reserved.
TEL: (905) 479-4411
Publicado por Pioneer Corporation.
PIONEER ELECTRONICS DE MEXICO, S.A. de C.V.
Copyright © 2004 Pioneer Corporation.
Blvd.Manuel Avila Camacho 138 10 piso
Todos los derechos reservados.
Col.Lomas de Chapultepec, Mexico, D.F. 11000
TEL: 55-9178-4270 Printed in U.S.A.
Impreso en los EE.UU.
<KMINX> <04A00000> <HRD0269-A> ES
Before Using This Product
or use a single 4 Ω speaker per channel.
Thank you for purchasing this PIONEER
product. Before attempting operation, be If you have any questions or concerns,
sure to read this manual. please contact your local authorized
Pioneer dealer or call Pioneer customer
service.
In case of trouble
When the unit does not operate properly, WARNING
contact your dealer or the nearest autho-
rized PIONEER Service Station. • Always use the special red battery and ground
wire [RD-223], which is sold separately. Connect
the battery wire directly to the car battery positive
CAUTION
terminal (+) and the ground wire to the car body.
• Do not touch the amplifier with wet hands.
Never replace the fuse with one of greater
Otherwise you may get an electric shock. Also, do
value or rating than the original fuse. Use
not touch the amplifier when it is wet.
of an improper fuse could result in over-
• For traffic safety and to maintain safe driving
heating and smoke and could cause dam-
conditions, keep the volume low enough so that
age to the product and injury including
you can still hear normal traffic sound.
burns.
• Check the connections of the power supply and
speakers if the fuse of the separately sold battery
wire or the amplifier fuse blows. Detect the cause
CAUTION
and solve the problem, then replace the fuse with
another one of the same size and rating.
Diagram A - Proper Diagram B - Improper
• To prevent malfunction of the amplifier and
speakers, the protective circuit will cut the power
8 4
supply to the amplifier (sound will stop) when an
+ - + -
Ohm Ohm abnormal condition occurs. In such a case, switch
Speaker Speaker
the power to the system OFF and check the
connection of the power supply and speakers.
8 4
Detect the cause and solve the problem.
+ - + -
Ohm Ohm
• Contact the dealer if you cannot detect the cause.
Speaker Speaker
• To prevent an electric shock or short-circuit
L+ R- L+ R-
during connection and installation, be sure to
disconnect the negative (–) terminal of the battery
Pioneer Pioneer
Amplifier Amplifier beforehand.
• Confirm that no parts are behind the panel when
4 Ohm Bridged Mode 2 Ohm Bridged Mode
drilling a hole for installation of the amplifier. Be
sure to protect all cables and important equipment
Do NOT install or use your Pioneer ampli-
such as fuel lines, brake lines and the electrical
fier by wiring speakers rated at 4 Ohm (or
wiring from damage.
lower) in parallel to achieve a 2 Ohm (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
for a two-channel amplifier and achieve a 4
Ω load, wire two 8 Ω speakers in parallel
with Left + and Right - (Diagram A) or use
a single 4 Ω speaker. For a four-channel
amplifier, follow the speaker output con-
nection diagram for bridging as shown on
the back of your amplifier, and wire two 8
Ω speakers in parallel to achieve a 4 Ω load
Setting the Unit
Gain Control
Adjusting the gain controls A and B will
help match the output of the car stereo to
the Pioneer amplifier. Normally, set the
gain controls to the "NORMAL" posi-
tion. If the output is low, even when the
volume of the car stereo is turned up,
turn these controls clockwise. If there is
distortion when the volume of the car
stereo is turned up, turn these controls
counter-clockwise.
• If you only use one input plug, set the gain
controls for speaker outputs A and B to the
same position.
• When using with an RCA equipped car
stereo (standard output of 500 mV), set to
the NORMAL position. When using with
an RCA equipped Pioneer car stereo with
max. output of 4 V or more, adjust level to
match the car stereo output level.
• If you hear too much noise when using the
speaker input terminals, turn the gain
control counter-clockwise.
Input Select Switch
For two-channel input, slide this switch
to the left. For four-channel input, slide
this switch to the right.
Power Indicator
The power indicator lights when the
power is switched on.
BFC (Beat Frequency Control) Switch
If you hear a beat while listening to an
AM broadcast with your car stereo,
change the BFC switch using a small
standard tip screwdriver.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaker that is connected
to the speaker output connector and the car stereo system:
LPF/HPF Select Audio frequency range Speaker Remarks
Switch to be output Type
LPF (Left) Very Low Frequency range Subwoofer Connect a subwoofer.
OFF (Center) Full range Full range
HPF (Right) Low Frequency range to Full range Use if you want to cut the
High Frequency range very low frequency range
because it is not necessary
for the speakers you are
using.