ENGLISH
ESPAÑOL
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ITALIANO
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BRIDGEABLE POWER AMPLIFIER
AMPLIFICATEUR DE PUISSANCE PONTABLE
Owner's Manual
PRS-A500
Mode d'emploi
1
Contents
Before Using This Product ...................... 2
In case of trouble .............................................. 2
CAUTION .......................................................... 2
CAUTION .......................................................... 2
WARNING ........................................................ 2
Setting the Unit .......................................... 3
Gain Control ...................................................... 3
Cut Off Frequency Control ................................ 3
Power Indicator ................................................ 4
BFC (Beat Frequency Control) Switch ............ 4
LPF (Low-Pass Filter)/HPF (High-Pass
Filter) Select Switch .................................... 4
Connecting the Unit .................................. 5
Connection Diagram ........................................ 6
Connecting the Power Terminal ........................ 7
Connecting the Speaker Output Terminals ...... 8
Connecting the Speaker Wires .......................... 8
Installation .................................................. 9
Example of installation on the floor mat
or on the chassis ........................................ 9
Specifications .......................................... 10
Before Using This Product
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Thank you for purchasing this PIONEER
product. Before attempting operation, be
sure to read this manual.
In case of trouble
When the unit does not operate properly,
contact your dealer or the nearest autho-
rized PIONEER Service Station.
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.
CAUTION
Do NOT install or use your Pioneer ampli-
fier by wiring speakers rated at 4
(or
lower) in parallel to achieve a 2
(or
lower) bridged mode (Diagram B).
Amplifier damage, smoke, and overheat-
ing 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
load, wire two 8 speakers in paral-
lel with Left + and Right - (Diagram A) or
use a single 4
speaker. For a four-chan-
nel amplifier, follow the speaker output
connection diagram for bridging as shown
on the back of your amplifier, and wire
two 8
speakers in parallel to achieve a 4
load or use a single 4 speaker per
channel.
If you have any questions or concerns,
please contact your local authorized
Pioneer dealer or call Pioneer customer
service.
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
speakers if the fuse of the separately sold battery
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
speakers, 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 speakers.
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.
Diagram A - Proper
8
Speaker
+-
8
Speaker
Pioneer
Amplifier
4
Bridged Mode
+
L+
R-
-
Diagram B - Improper
4
Speaker
+-
4
Speaker
Pioneer
Amplifier
2
Bridged Mode
+
L+
R-
-
3
Setting the Unit
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 clockwise. 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.
Cut Off Frequency Control
If the LPF/HPF select switch is set to
LPF or HPF, you can select a cut off
frequency from 40 to 120 Hz.
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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)/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)
* -- 40 to 120 Hz
Subwoofer
Connect a subwoofer.
OFF (Center)
Full range
Full range
HPF (Right)
* 40 to 120 Hz --
Full range
Use if you want to cut the
very low frequency range*
because it is not necessary
for the speakers you are
using.
* See the "Cut Off Frequency Control" section.