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ENGLISH
ESPAÑOL
DEUTSCH
FRANÇAIS
ITALIANO
NEDERLANDS
êìëëäàâ
MONO POWER AMPLIFIER
AMPLIFICATEUR DE PUISSANCE MONO
Owner's Manual
GM-7300M
Mode d'emploi


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1
Before Using This Product ...................... 1
Visit our website ................................................ 1
In case of trouble .............................................. 2
About This Product .......................................... 2
CAUTION ........................................................ 2
WARNING ........................................................ 2
Setting the Unit .......................................... 3
Gain Control ...................................................... 4
LPF (Low-Pass-Filter) Cut Off Frequency
Control ........................................................ 4
Power Indicator ................................................ 4
BFC (Beat Frequency Control) Switch ............ 4
Bass Boost Control ............................................ 4
Connecting the Unit .................................. 5
Connection Diagram ........................................ 6
Connecting the Power Terminal ........................ 7
Connecting the Speaker Terminals .................. 8
Using the Speaker Input .................................... 8
Connecting the Speaker Wires .......................... 9
Installation ................................................ 10
Example of installation on the floor mat
or on the chassis ...................................... 10
Specifications .......................................... 11
Thank you for purchasing this PIONEER
product. Before attempting operation, be
sure to read this manual.
Private households in the 25 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 retailer (if you
purchase a similar new one).
For countries not mentioned above, please
contact your local authorities for the
correct method of disposal.
By doing so you will ensure that your
disposed product undergoes the necessary
treatment, recovery and recycling and thus
prevent potential negative effects on the
environment and human health.
Visit our website
Visit us at the following site:
· 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.
· We offer the latest information about
Pioneer Corporation on our website.
If you want to dispose this
product, do not mix it with
general household waste. There
is a separate collection system
for used electronic products in
accordance with legislation that
requires proper treatment,
recovery and recycling.
Contents
Before Using This Product


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ENGLISH
ESPAÑOL
DEUTSCH
FRANÇAIS
ITALIANO
NEDERLANDS
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2
In case of trouble
When the unit does not operate properly,
contact your dealer or the nearest autho-
rized PIONEER Service Station.
About This Product
This product is an amplifier for the sub-
woofer. If both L (left) and R (right) chan-
nels are connected to the RCA input of
this product, output is mixed because this
product is a mono amplifier.
CAUTION
Never replace the fuse with one of greater
value or rating than the original fuse. Use
of an improper fuse could result in over-
heating and smoke and could cause dam-
age to the product and injury including
burns.
WARNING
· 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
terminal (+) and the ground wire to the car body.
· Do not touch the amplifier with wet hands.
Otherwise you may get an electric shock. Also,
do not touch the amplifier when it is wet.
· For traffic safety and to maintain safe driving
conditions, keep the volume low enough so that
you can still hear normal traffic sound.
· Check the connections of the power supply and
subwoofer if the fuse of the separately sold bat-
tery wire or the amplifier fuse blows. Detect the
cause and solve the problem, then replace the
fuse with another one of the same size and rating.
· To prevent malfunction of the amplifier and sub-
woofer, the protective circuit will cut the power
supply to the amplifier (sound will stop) when an
abnormal condition occurs. In such a case, switch
the power to the system OFF and check the
connection of the power supply and subwoofer.
Detect the cause and solve the problem.
· Contact the dealer if you cannot detect the cause.
· To prevent an electric shock or short-circuit
during connection and installation, be sure to
disconnect the negative (­) terminal of the battery
beforehand.
· Confirm that no parts are behind the panel when
drilling a hole for installation of the amplifier. Be
sure to protect all cables and important equipment
such as fuel lines, brake lines and the electrical
wiring from damage.
· DO NOT allow amplifier to come into contact
with liquids due to, for example, the location
where the amplifier is installed. Electrical shock
could result. Also, amplifier and speaker damage,
smoke, and overheating could result from contact
with liquids. In addition, the amplifier surface
and the surface of any attached speakers could
become hot to the touch and minor burns could
result.


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3
Setting the Unit


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ENGLISH
ESPAÑOL
DEUTSCH
FRANÇAIS
ITALIANO
NEDERLANDS
êìëëäàâ
4
Gain Control
If the sound level is too low, even when the volume of the car stereo used along with this
power amplifier is turned up, turn gain control on the front of the power amplifier clock-
wise. If the sound distorts when the volume is turned up, turn the gain control counter-
clockwise.
· 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.
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 MW/LW broadcast with your car stereo, change the
BFC switch using a small standard tip screwdriver.
LPF (Low-Pass-Filter) Cut Off Frequency Control
You can select a cut off frequency from 40 Hz to 240 Hz.
Bass Boost Control
You can select a bass boost level from 0 dB, 6 dB, 9 dB and 12 dB.
For instruction of connecting the bass boost remote control to the amplifier, see the
"Connection Diagram" section.