CAUTION
!Always keep the volume low enough to hear
outside sounds.
!Extended use of the stereo while the engine is
at rest or idling may exhaust the battery.
!This product is evaluated in moderate and tro
pical climate condition under the Audio, video
and similar electronic apparatus - Safety re-
quirements, IEC 60065.
!The graphical symbol placed on the
product means direct current.
About the protection function
This product has protection function. When this
product detects something abnormal, the follow-
ing functions will operate to protect the product
and speaker output.
!The POWER/PROTECT indicator will turn red
and the amplifier will shut down in the situa-
tions outlined below
—If the temperature inside the amplifier gets
too high.
—If a DC voltage is applied to the speaker
output terminal.
!The POWER/PROTECT indicator will turn red
and the output will be muted in the situations
outlined below
—If the speaker output terminal and speaker
wire are short-circuited.
What’s what
F side
3
2
4
5
Rear side
T adjust the switch, use a flathead screwdri-
ver if needed.
1FREQ (cut off frequency) control
Cut off frequency selectable from 40 Hz to
500 Hz if the LPF / HPF select switch is set to
LPF or HPF.
2GAIN (gain) control
Adjusting gain controls CHANNEL A (chan-
nel A) and CHANNEL B (channel B) helps
align the stereo output to the P ampli-
fier Default setting is the NORMAL posi-
tion.
If the output remains low even when the
stereo volume is turned up, turn the con-
trols to a lower level. If distortion occurs
when the stereo volume is turned up, turn
these controls to a higher level.
!If using only one input plug, set the gain
controls for speaker outputs A and B to
the same position.
!F use with an RCA equipped stereo
(standard output of 500 mV), set to the
NORMAL position. F use with an RCA
equipped P stereo, with maximum
output of 4 V or more, adjust level to
match that of the stereo output.
!F use with an RCA equipped stereo
with output of 4 V set to the H position.
En
Before you start Setting the unit
3LPF (low-pass filter)/HPF (high-pass fil-
ter) select switch
Switch the settings based on the connected
speaker
!When the Subwoofer is connected:
Select LPF. This eliminates high range
frequency and outputs low range fre-
quency
!When the full range speaker is con-
nected:
Select HPF or OFF . HPF eliminates low
range frequency and output high range
frequency OFF outputs the entire fre-
quency range.
4INPUT SELECT (input select) switch
Select 2CH for two-channel input and 4CH
for four– channel input.
5POWER/PROTECT indicator
The power indicator lights up to indicate
power ON.
!If something is not normal, the indicator
turns red.
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. T 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.
Gain control of this unit
Preout level: 2 V (Standard: 500 mV)
Preout level: 4 V
Above illustration shows NORMAL gain set-
ting.
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
If the signal waveform is distorted due to high
output, even if the amplifier gain is raised, the
output power will change only slightly
En
Setting the unit
Connection diagram
1
f
3
4
5
6
8
b
a
9
i
g
h
d
e
c
2
7
1Battery wire (sold separately)
!The maximum length of the wire be-
tween the fuse and the positive + term-
inal of the batter is 30 cm (12
!F the wire size, refer to Connecting the
power terminal. The batter wire, the
ground wire and the optional direct
ground wire must be same size. After
making all other connections at the am-
plifier connect the batter wire terminal
of the amplifier to the positive + term-
inal of the batter
2F (60 A) (sold separately)
Each amplifier must be separately fused at
60 A.
3P + terminal
4Negative (* ) terminal
5Battery (sold separately)
6Ground wire, T (sold separately)
The ground wires must be same size as the
battery wire.
7Stereo with RCA output jacks (sold separately)
8External output
If only one input plug is used, do not connect
anything to RCA input jack B.
9Connecting wire with RCA pin plugs (sold se-
parately)
aRCA input jack A
bRCA input jack B
cAmplifier with RCA input jacks (sold sepa-
rately)
dRCA output jack
Outputs the signal input to CH A.
eSpeaker output terminals
Please see the following section for speaker
connection instructions. Refer to Connections
when using the speaker input wire.
fSystem remote control wire (sold separately)
gF (30 A) × 2
hF side
iRear side
Note
INPUT SELECT (input select) switch must be set.
For details, see Setting the unit .
Before connecting the
amplifier
WARNING
!Secure the wiring with cable clamps or adhe-
sive tape. T 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.
CAUTION
!T prevent water from entering the amplifier
attach a cover or cap to each terminal when
not in use.
!Never shorten any wires, the protection circuit
may malfunction.
En
Connecting the units
!Never wire the speaker negative cable directly
to ground.
!Never band together multiple speaker’ s nega-
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 re-
main on with the ignition whether the stereo
is on or off, which may exhaust battery if the
engine is at rest or idling.
!Install and route the separately sold batter
wire as far as possible from the speaker wires.
Install and route the separately sold batter
wire, ground wire, speaker wires and the am-
plifier as far away as possible from the anten-
na, antenna cable and tuner
About bridged mode
!Do not install or use this amplifier by wiring
speakers rated at 2 W (or lower) in parallel to
achieve a 1 W (or lower) bridged mode (Dia-
gram B).
Amplifier damage, smoke, and overheating
could result from improper bridging. The am-
plifier surface could also become hot to the
touch and minor burns could result.
T properly install or use a bridged mode and
achieve a 2 W load, wire two 4 W speakers in
parallel with Left + and Right * (Diagram A)
or use a single 2 W speaker
In addition, refer to the speaker instruction
manual for information on the correct connec-
tion procedure.
!For any further enquiries, contact your local
authorized P dealer or customer
service.
About suitable
specification of speaker
Ensure speakers conform to the following
standards, other there is a risk of fire,
smoke or damage. Speaker impedance is 2 W
to 8 W,oW to 8 W for two-channel and other
bridge connections.
Subwoofer
Speaker channel Power
Four-channel output Nominal input:
Min. 75 W
T output Nominal input:
Min. 200 W
Three-channel
output
Speaker output
A
Nominal input:
Min. 75 W
Speaker output
B
Nominal input:
Min. 200 W
Other than subwoofer
Speaker channel Power
Four-channel output Max. input:
Min. 150 W
T output Max. input:
Min. 400 W
Three-channel
output
Speaker output
A
Max. input:
Min. 150 W
Speaker output
B
Max. input:
Min. 400 W
En
Connecting the units
