Introduction 5
What’s in the box 5
Overview of the main unit 5
3 Installation 6
Mount the amplifier in car 6
Connect speakers 7
Connect car audio 7
Connect power 7
4 Use your power amplifier 9
Select filter mode 9
Select LPF frequency 9
Adjust input level 9
Adjust bass boost 9
About the protector indicator 9
Replace fuse 10
5 Product information 10
English
6 Troubleshooting 11
EN
3
Page 3
1 Important
Safety
Read and understand all instructions •
before you use the apparatus. If damage
is caused by failure to follow instructions,
the warranty does not apply.
This unit is designed for negative ground •
(earth) 12 V DC operation only.
Use only the supplied mounting hardware •
for a safe and secure installation.
Do not connect any active speakers (with •
built-in amplifier) to the speaker terminals
of the unit. Doing so may damage the
active speakers.
To ensure safe driving, adjust the volume •
to a safe and comfortable level.
To avoid short circuit, do not expose the •
apparatus, remote control or remote
control batteries to rain or water.
Never expose the apparatus to direct •
sunlight, naked flames or heat.
Clean the apparatus with soft, damp •
cloth. Never use substances such as
alcohol, chemicals or household cleaners
on the apparatus.
Notice
Environmental information
All unnecessary packaging has been omitted.
We have tried to make the packaging easy to
separate into three materials: cardboard (box),
polystyrene foam (buffer) and polyethylene
(bags, protective foam sheet.)
Your system consists of materials which can
be recycled and reused if disassembled by
a specialized company. Please observe the
local regulations regarding the disposal of
packaging materials, exhausted batteries and
old equipment.
Any changes or modifications made to this
device that are not expressly approved by
Philips Consumer Lifestyle may void the user’s
authority to operate the equipment.
Congratulations on your purchase, and
welcome to Philips! To fully benefit from the
support that Philips offers, register your product
at www.philips.com/welcome.
Introduction
With the amplifier, you can enjoy high quality
sound performance with powerful bass and
beats.
What’s in the box
Check and identify the contents of your
package:
a INPUT L/R
Connect car audio with RCA cable.•
b OUTPUT L/R
To connect additional amplifier with •
RCA cable for additional speakers.
c INPUT LEVEL
Adjust input level (0.3V to 6V).•
d FILTER MODE
Set frequency filter at LPF (low-pass-•
filter), HPF (high-pass-filter), or OFF
(flat) mode.
English
(
)
30A
a Amplifier
b Screw (25mm) x 4
c Fuse x 1
e LPF FREQUENCY
Set LPF (low-pass-filter) frequency •
from 80Hz to 120Hz.
f BASS BOOST
Boost frequency for around 50Hz, •
12dB .
g POWER/PROTECTED
Light in green when the amplifier is •
switched on.
Light in red when the amplifier is •
abnormal and protected.
h SPEAKER OUTPUT
Connect to speakers or subwoofers.•
EN
5
Page 5
i FUSE: 30AX1
j POWER
To connect +12V-DC power wire, •
ground wire, and remote control
wire.
3 Installation
Note
Follow all mounting and wiring instructions. •
Mount the amplifier in car
You can mount the amplifier either under a seat
or on the rear tray.
Note
To avoid inter ference, do not place the •
amplifier too close to the car audio or antenna.
•
The supplied mounting screws are 25mm long.
Make sure that the mounting board is thicker
than 25mm.
1 Place the unit on the location for
installation.
2 Mark the positions of the four screw
holes.
3 Drill the holes with driller of
approximately 4mm in diameter.
4 Mount the unit with the supplied screws.
6
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Page 6
Connect speakers
Connect car audio
Note
Use speakers with an impedance of 2 to 8 ohm •
(4 to 8 ohm when used as a bridged amplifier).
•
Match the “left”, “right”, “+” and “-” terminals
correctly. Revised polar ity may degrade sound
quality.
Option 1: Stereo mode: connect 2 speakers
(
)
30A
4 ohm
4 ohm
speaker
speaker
Option 2: Mono bridged mode: connect
1 speaker
(
)
30A
4 ohm
speaker
Option 3: Tri-mode: connect 3 speakers
(
)
30A
4 ohm
4 ohm
speaker
speaker
8 ohm speaker
Option 1: Line input connection
Connect the amplifier to the car audio with an
RCA cable (not supplied).
Car audio unit
LINE OUT
Option 2: Line output connection
Connect the amplifier to another amplifier.
Connect power
Make the power connection as illustrated
1
below:
Connect the ground wire from the •
car to the GND socket.
Connect the remote wire from the •
car audio to the REM socket.
With this connection, you can turn •
on/off the amplifier with the car
audio.
Connect the power wire from the •
car batter y to the +12V socket.
English
EN
7
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(
)
30A
To a metal point of the car
Less than 450mm (18 in)
Fuse (40A)
+12V car battery
Tip
If your car audio does not have remote output, •
connect the remote input terminal (REM) to
the accessory power supply.
Remote output
Car audio unit
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Page 8
4 Use your power
Adjust input level
amplifier
Select filter mode
Select Filter Mode according to the connected
speaker type.
1 Slide FILTER MODE to the selected
position.
• HPF (high-pass-filter): Select this
mode when mid-range speakers and
tweeters are connected for high
frequency output.
• LPF (low-pass-filter): Select this
mode when woofer and subwoofer
are connected for low frequency
output.
• OFF (flat): Select this mode when
both tweeters and woofers are
connected.
Select LPF frequency
When FILTER MODE is set at LPF position, you
can select the range of frequency that is to be
filtered.
Note
When •FILTER MODE is set at OFF or HPF
position, LPF FREQUENCY does not work.
1 Slide LPF FREQUENCY to the selected
position.
• 80Hz: More high frequency signal
is filtered. Select 80Hz if you prefer
stronger bass effect.
• 180Hz: Less high frequency signal is
filtered.
To ensure sound quality, adjust input level to
match it with the car audio’s output voltage.
1 Check the line output voltage of the
connected car audio.
2 Rotate INPUT LEVEL to select a matched
voltage: 0.3V to 6V.
Adjust bass boost
To enjoy more bass sound:
1 Set FILTER MODE at OFF or LPF mode.
2 Slide BASS BOOST to 12dB position.
Tip
If •BASS BOOST is set at 0dB position, no extra
bass will be boosted.
Note
If •FILTER MODE is set at HPF mode, the bass
frequency will be filtered.
About the protector
indicator
The amplifier has a built-in protection circuit to
protect the transistors and speakers in following
conditions:
The amplifier is overheated.•
A DC current is generated in •
speakers.
The batter y voltage is too low or too •
high. Or
The speaker terminals are short •
circuited.
When the PROTECTED indicator
lights up in red, the amplifier shuts
down automatically. In this case
please:
English
EN
9
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1 Take out the disc or tape and turn off the
car audio.
2 Check the cause of the malfunction.
3 If the amplifier is overheated, let it cool
down.
5 Product
information
Note
Replace fuse
If there is no power, the fuse might be damaged
and need to be replaced.
1 Pull out the damaged fuse.
2 Replace the fuse with the supplied fuse or
buy a new fuse that matches the rating of
the damaged fuse (30A x 1).
If the fuse gets damaged immediately after it
has been replaced, the amplifier might have
internal malfunction. Consult qualified personal
for repair.
Product information is subject to change •
without prior notice.
Power output
(RMS)
Total harmonic
distortion
Signal to noise
ratio
Channel separation50dB
Frequency
response
Input sensitivity300mV - 6V
Input impedance22k ohm
Fuse rating30A x 1
Dimensions (D x
W x H)
Weight1.98kg
- 4 ohm75W x 2
- 2 ohm110W x 2
- 4 ohm
(bridged)
220W x 1
0.09%
100dB
5-50kHz
246 x 240 x
54mm
10
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6 Troubleshooting
To keep the warranty valid, never try to repair
the system yourself.
If you encounter problems when using this
apparatus, check the following points before
requesting service. If the problem remains
unsolved, go to the Philips web site
(www.philips.com/welcome). When you
contact Philips, ensure that the apparatus
is nearby and the model number and serial
number are available.
Power indicator does not light up
The connected car audio is not turned on. •
The fuse is blown. Replace the fuse with •
a new one.
The input level is not set correctly (see •
“Adjust input level”).
The protector indicator lights up in red.
The speaker terminals are short circuited. •
Check the speaker connections.
The sound is too low.
The input level is not set correctly •
(see “Adjust input level”).
The sound is interrupted or stopped suddenly.
The thermal protector is activated. •
Reduce the volume.
The ventilation outlet is blocked. Remove •
any obstructions from the outlet.
Alternate noise is heard.
The power connecting wires are installed •
too close to the RCA pin cords.
The ground wire is not securely •
connected to a metal point of the car.
Negative speaker wires touch the car •
chassis.
The unit becomes abnormally hot.
Place the amplifier in a well ventilated •
location.
Use speakers with suitable impedance: •
2-8 ohm (stereo), 4-8 ohm (bridged).