Page 1
OPERATION
INSTALLATION
MANUAL
Page 2
clafton
4
Channel
Power
System
Amplifier
INTRODUCTION
The ClanonAPX400AISa full-featured four-channel amplifier.Itcomes wIth
The Clarion APX400.4 is a full-featured four-channel amplifier. It comes with
the folloWIng features:
the followmg features:
• Full frequency response wIth low distortIon and exceptIOnal sIgnal to
l
Full frequency response with low distortion and exceptional signal to noise
performance
performance
• Advanced
l
Advanced circuit design features bridgeable and mixed mode operation for
use m a vanety
use m a variety of 4,3 or 2 channel systems
• Independent front andrear, low-pass/hlgh-pass electromc crossovers each
l
Independent front and rear, low-pass/high-pass electromc crossovers each
With
with a 12dB per octave slope and full adjustment range (from 55Hz to 550Hz
Front and 55Hz to 5.5kHz Rear) to aId
Front and 55Hz to 5.5kHz Rear) to aid m audio system design
• Vanable bass boost
l
Variable bass boost cncmt to reinforce low frequency signals that may be
lost due to subwoofer box design
lost due to subwoofer box design
• Adjustable Input level controls
l
Adjustable input level controls with ground loop isolation accepting a wide
range
range of input signals
• Remote tum-on
l
Remote turn-on with “soft start” mutmg to prevent turn-on “thump”
• Pulse-WIdth modulated (PWM) MOSFET power supply
l
Pulse-width modulated (PWM) MOSFET power supply with low AM RF1
and protectIOn
and protection circuits for overheating and speaker shorts
• 2 ohm load capacity
l
2 ohm load capacity to drive a variety of speaker systems
• Gold-plated Input/output connectors and an external automotIVe type fuse
l
Gold-plated mput/output connectors and an external automotive type fuse
• Alummumheat
l
Aluminum heat smk for efficient heat dissipatton
• Low profile, compact size for space limited InstallatIOns
l
Low profile, compact size for space limited installations
ABOUT
b
To
start enjoyIng your new
To start enjoying your new Clarion four-channel amplifier, please read the
InstructIOns listed
mstructtons listed m this manual. Keep all instructions for future reference.
Please fill out and send
Please fill out and send m the enclosed warranty card to protect your purchase
and aid
and aid m warranty service. Also, save your original sales receipt as proof of
purchase.
purchase.
CIrcUIt
desIgn features bndgeable and mIxed mode operatIOn for
of
4, 3 or 2 channel systems
a 12dB per octave slope and full adjustment range (from 55Hz to 550Hz
In
audio system design
CIrcUIt
to remforce low frequency signals that may be
With
ground loop IsolatIOn acceptIng a wide
of
Input signals
With
"soft start" mutmg to prevent tum-on "thump"
With
low
CircUits
THE
MANUAL
In
warranty service. Also, save
for overheatIng and speaker shorts
to
dnve a vanetyofspeaker systems
SInk
for effiCient heat
AND
WARRANTY
Clanon
In
thiS
manual. Keep all InstructIOns for future reference.
In
the enclosed warranty card to protect your purchase
diSSipatIOn
four-channel amplifier, please read the
your
original
sales
receiptasproof
AM
nOIse
RFI
of
TABLEOFCONTENTS
Descrlptlon . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*..o..o.~
DescrIption • •
Input ConnectIOns andAudio Controls
Input Connections and Audio Controls
ConnectIOns for Power and Speakers
Connections for Power and Speakers
Applications l ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~6
ApplicatIons
Installation l ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*~*~~~~~
InstallatIon
Mo~tlngPrecautlons . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..oll
MountIng
WirlngPrecautlons . . . . . . . . . . . . . . . . . . . . . . . . . . ..***o*ll
WirIng
&ttlngth&aln l ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~3
SettIng
Se~lngtheCrossover . . . . . . . . . . . . . . . . . . . . . . . . . . . ...013
Setting the Crossover
Se~lngtheBassBoost l ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~3
Setting the Bass Boost
FinalSystemChecks l ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~4
Final System Checks
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...14
TroubleshootIng
ProductSpecs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l .ee.15
Product
Nofes..o.......o..............................ol5
Notes·
2
2
PrecautIons
the
Specs
• •
•••••
• • • •
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l l l l l l l l l l l l l l l l l l l l l l
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PrecautIons
•••••••••••••••••••••••••••••••
•••••••••••••••••••••••••••••••••
GaIn
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3
3
3
5
5
6
11
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11
• •
13
13
13
•
•••
14
14
15
15
Page 3
OWNER'S
MANUAL
DESCRIPnON
The ClanonAPX400.4 4-channel car audio amplifierISan excellent choice for
creatmg a vanetyofmulti-channel sound systems.Itfeatures built-m system
deSign flexibility that allows you to create a 2, 3 or 4 channel amplifier
flipofa sWitch.
mixed mode operatIOn to dnve a setofsatellite speakers and/or subwoofer.
The built-m12dB per octave electrOnIc crossover lets you custom tailor the
soundofthe front and rear channels, usmg two mdependent filters
adjustable crossover frequencies for high-pass or low-pass filtermg.
The amplifier also uses an unregulated MOSFET power supply for supenor
controlofoutput wattage. A torOid-coil transformer yields maximum power
transfer
levels, so you
ProtectIOn
or Improper load conditIOns occur.
All connections and controls are on the end panels and are easy to understand.
We
connectIOn for your system. Included are external automotive type fuses that
are easy to replace.
INPUT
The front panelofthe APX400.4 contams connectIOns for RCA Inputs and
Audio Control as shown below.
The Input ConnectIOns are gold-plated RCA Jacks and are labeled as FRONT
With
use gold-plated RCA and
CONNECTIONS AND AUDIO
You
can also configure the front or rear amplifier sectIOns for a
minImum heat loss. Careful
won't
hear unwanted
CirCUits
safeguard the amplifier when overheatmg and speaker shorts
bamer
CirCUit
deSign keeps AM RFI at low
nOise
when the levelIScranked up.
connectors to ensure the best electncal
CONTROL
With
With
a
Figure 1-
1.
Front RCA Input Jacks
2.
Rear RCA Input Jacks
3.
Front Gam Control
4. Rear Gam Control
5.
Bass Boost Control
6.
Rear Channel Input Selector
7 Front Input Mode SWitch
2
10
6
11
8.
Rear
9 Speaker Level Inputs
10.
Front Frequency Control
11.
Front X-Over Mode SWitch
12.
Rear Frequency Control
13.
Multiplier SWitch
14.
Rear X-Over Mode SWitch
14
Input Mode SWitch
3
Page 4
clarion
RIGHT, FRONT LEFT, REAR RIGHT and REAR LEFT. The Gam Controls
provIde a wIde adjustment range to accommodate output levels from any brand
of
source umt.
•
Gain
nommal operatmg levelofthe amplifier. The amplifier's range, 250mV to 2.5V
for RCA mputs or 500mV to 5V for speaker level mputs, can accommodate
mput levels from vIrtually any brandofsource umt.
4 Channel Power System Amplifier
Controls
- Seperate Front and Rear Gam Controls allow you to set the
• Bass Boost
frequency band) Bass Boost
adjustable gam (from 0 to +18dB) fixed at 45Hz. Use
frequency audio response to compensate for a less than Ideal subwoofer
enclosure desIgn. The added boost produces nch, full bass tones that are
normally difficult to reproduce m the car audio enVIronment. Note:IfBass
BoostISundesIred, set Bass Boost to
Control
- The amplifier also features a "high-Q" (i.e. narrow
CIrcUit.Itacts much like an equalizer, wIth
thIS
feature to tune low-
OdB.
High-passlLow-pass Filter Controls
•
Freq
(Hz)
Controls
between 55Hz and 550Hz. The rear crossover frequencyISfully adjustable
between 55Hz and 5500Hz (vIa the Rear Crossover Frequency MultIplier) for a
wIde rangeofcrossover pomts. Use
manufacturer's recommended crossover frequencIes, to qUickly desIgn a more
advanced system (see ApplicatIons on page 6.) NOTE:IfeItherofthe X-Over
Mode SWItchesISset to OFF, varymg the Freq (Hz) Control will produce no
effect.
•
Rear
X-Over
mcreases the crossover frequencyofthe rear channels by a factorof10.
Example:Ifthe Freq (Hz) dialISset for 240Hz, pushmg m the multIplier
SWItch
•
electromc filters for preCIse frequency attenuatIOn wIth mimmal phase
distortIOn. The steep crossover slopes keep mIdrange tones outofthe
subwoofer and thereby elimmatmg an unnatural "nasal" tone quality m the
audio system. Each filterISactIvated by sliding the X-Over Mode
eIther LP or
changes the settmg to 2400Hz.
X-Over
Mode
HP.
- The front crossover frequencyISfully adjustable
thIS
feature, along wIth your speaker
Frequency
Switches - These sWItches are eqUipped wIth 12dB per octave
Multiplier
Switch - When engaged,
thIS
SWItch
sWItch
to
•
Input
Mode
Switches - These sWItches allow you to set the mput mode for
front and rear channels. Stereo mput allows full left and
RIght (bndged) mput allows smgle channel mput for bndged operatIOn.
espeCIally useful m hIgh-powered systems when usmg the APX400A as a
bndged 2 channel amplifier. L +R (sum mono) allows a stereo mput to be
summed mto a mono output.
nght
stereo operatIOn.
4
ThIS
IS
Page 5
OWNER'S
•
Rear
Channel Input Select-
dnve
to
•
source. In additIOn, these connectIOns are provIded for mstallatIOns where the
source
all 4 channelsofthIS
Speaker
Level Inputs - These provIde connectIOns for a hIgh-level stereo
umt's
RCA outputs are unavailable.
ThIS
sWItch allows you to use a 2 channel mput
amplifier.
MANUAL
WARNING: When usmg the speaker (hIgh-level) mputs, the Black
be grounded at the Radio. Failure to do
operatIOn.
CONNECTIONS
The rear panelofthe APX400.4 contams power and speaker connectIOns as
shown below.
Figure
1.
2. RIght Front Speaker Output
3. Remote Tum-on Input
4. Ground Input
2-
Left Front Speaker Output
FOR
POWER
2 6
~BA~~ED~
':~
biJr@
----\------11-------------
7 8
thIS
will result m
AND
SPEAKERS
[irijl
5. Battery
6.40Amp Fuse
7 Left Rear Speaker Output
8.
RIght Rear Speaker Output
+ 12v Input
nOIse
@ j
WIre
must
and Improper
u!
®
5
Page 6
clarion
4
Channel
Power
System
Amplifier
APPLICATIONS
The Clanon APX400.4 4-channel car audio amplifier can be used In a vanety
of
system applicatiOns. We've enclosed some example systems to help plan
your own InstallatiOn.
4-Channel Full-Range Stereo System
RL
Full
Range
RR
Full
Range
FR
Full
Range
Figure 3 - In
thIS
applicatiOn, the APX400.4ISused as a 4-channel amplifier to
dnve four full-range speakersInstereo.
6
FL
Full
Range
Page 7
OWNER'S
4-Channel Stereo System
2-Channels High-Pass, 2-Channels Low-Pass
FRONT
REAli
=:1
I
~~~~f::t'E~\~
I
flo",O
~:
NT
.;-<,;
~.p
tL:J
REAR
FRONT
':':~'"
"~
~1
330
&Xl0
..
2.SV
(0)
GAIN GAIN
[dB]
..
~,~
2.11V
18
I:!§EfJ
,"::~
.
.,'~'
"~
~
330
lP
HP OFF
tiS
FRONT
w/OI\S&
BOOST~
MANUAL
L Satellite
RSatellite
LSubwoofer
R Subwoofer
Figure 4 - In this 4-channel system, the
satellites for th efront and a pair
fil
ter settmgs.
of
stereo subwoofers for the rear. Note the
APX400A
dnves a pairofstereo
7
Page 8
clarion
4
Channel
Power
System
Amplifier
2-Channel Stereo System with Low-Pass
Bridged Mono Channel
LSatellite
2-way
Crossover
R Satellite
Passive
Subwoofer
Figure 5 - The APX400A can also be used to dnve a pairofstereo satellites
for the front and a smgle mono subwoofer for the rear. Note the filter settmgs.
8
Page 9
OWNER'S
2-Channel High Power Systems (Satellite or Subwoofer)
MANUAL
2-way
Passive
-
-
-
-
Crossover
BridgedLSatellite
-
-
-
-
Bridged L Subwoofer
Figure 6 - The APX400A can be set up as a 2-channel hIgh-power amplifier to
dnve a pair
of
satellites (or subwoofers).
BridgedASatellite
Bridged R Subwoofer
9
Page 10
clanon
4 Channel Power System Amplifier
Mixed-Mode System On Rear; Full-Range
Speakers
L Full Range
L Speaker R Speaker
c
On
Front
L Full Range
+
L
FREQ (hz) l(mH}
80 8.0
100
125
150
200
NOTE:
Figure
either channels 1/2 or 3/4 amplifier sectiOns. The table provides component
values to create a 6dB per octave crossover at specified frequencies. Use
components that have a
Choose the same frequency for both LP and HP crossovers. Do not overlap
frequencies, as
6.4 398
5.1
4.2
3.2
Chart
values
7 - The amplifier can be configured for a mixed-mode operatiOn on
thiS
C (uF)
497
Subwoofer 4 ohms
318
265
199
basedon4
ohm
speakers.
±5% tolerance and capacitors rated at
may damage the amplifier.
lOOV
10
NOTE:
Page 11
OWNER'S
MANUAL
INSTALLATION
This sectIOn lists Mounting and Winng PrecautIOns for Installing the Clanon
APX400.4. Combined with the expenenceofa professIOnal Installer, these
safeguards provide enough detail to successfully complete an installatIOn.
you do not have the necessary skills, do not Install the amplifier yourself.
Instead, see your authonzed Clanon dealer for installation recommendatIOns.
If
MOUNTING
Although the Clanon APX400.4 Incorporates heat sinks and protectIOn cIrcUIts,
mounting the amplifierIna tight space without any air movement can still
damage Internal circUitry over time. Choose a site that provides adequate
ventilatIOn around the amplifier. For easy system set-up, mount the amplifier
so the front panel controls will be accessible after installatIOn.
In additIOn, observe the following precautIOns:
1.
For the most effiCient cooling, mount the amplifier so cool air runs along the
lengthofthe fins rather than across them. Remember, any moving air will
diSSipate heat.
2. Mount the amplifier on a
enclosures or areas prone to vibratIOn. Do not Install the amplifier on plastic or
other combustible matenals.
3.
Pnor
fuel tank, fuel lines, brake lines (under
WIRING
Read all
your authonzed Clanon dealer.
1.
Before installatIOn, make sure the source umt Power sWitchISIn
posItion.
2.
Disconnect the negative (-) leadofthe battery before making any power
connectIOns.
PRECAUTIONS
ngld
surface.
to drilling, make sure proposed mounting holes will not cut Into the
AVOId
mounting to subwoofer
chaSSIS),orelectncal wmng.
PRECAUTIONS
wmng
precautIOns.Ifyou are not sureofthe connectIOns, contact
the OFF
3.
When making connectIOns, be sure that each connectIOnISclean and secure.
Insulate final connectIOns with electncal tapeorshnnk
may damage your eqUipment.
4. A secure clean ground connectIOnIScntlcal to the performanceofyour
Clanon amplifier. Use the shortest ground wire possible snd securely connect
to the car
5.
It
as close as possible to the vehicle's (+) battery terminal. Use a rating that
equals the total current consumptIOn at full outputofall amplifiersInthe
system. Adding an external fuse will protect the electncal system from short
CirCUits
chaSSIS
Add an external fuse on the amplifier's positive (+) power lead and connect
that can cause a fire.
to minimize resistance and
aVOid
tubing. Failure to do so
nOise
problems.
11
Page 12
clanon
6.
Refer to the Figure 8 when maklllg electncal connectIOns. Connect the
amplifier's positive (+) lead
the battery. Do not connect this
la-gauge (or larger)
same-gauge black msulated
7 When replacmg the amplifier's fuse, always use one havmg the same current
ratmg. SubstItutmg a hIgher-rated fuse or a slow-blow type can result m senous
damage to the amplifier.
8.
Never ground the speakers to the vehIcle chassis or body.
9 Make sure that your vehIcle's electncal system (alternator, battery, etc.)
capableofhandling the additional load.Ifyou are plannlllg a multI-amplifier
system, you may need to add a second battery and possibly upgrade the
alternator with a hIgher-output rated model. Consult your authonzed Clanon
dealer for recommendatIOns.
10.ToavoId
one sIdeofthe vehIcle to the battery. Run the remote tum-on
audio cables down the center, and route the speaker
sIde.IfWIres
11. When creatmg passage holes for the power
any sharp edges created durmg drilling.
mcked and causmg a short
12. Extra cable can cause sIgnal loss and act as an "antenna" for
only hIgh-quality RCA cables that are no longer than necessary to make a
direct connectIOn wIth the source umt or equalizer.
4
Channel
WIre
nOIse
problems, run the amplifier's posItIve (+) power lead along
must cross, run them perpendicular to each other.
Power
Via
for the amplifier's
WIre
CIrcUIt.
System
a fuse directly to the positive (+) termmal on
Wire
to the car's fuse panel. Use red-lllsulated
for the ground.
ThIS
Amplifier
pOSItive
will protect the
(+) power lead and the
WIres
WIre,
use grommets to elimmate
WIre
along the remammg
WIre
and RCA
from belllg
nOIse.
Use
IS
Lefl Fronl Speaker
LeflFrontSpeaker+
Figure 8 - Electncal connectIOns for the APX400.4
Le1tRearSpeakef+-
~,
..__----IJ\,
12
;@,
~
"
Page 13
OWNER'S
MANUAL
SEmNG
After completmg the mstallatIOn, follow these steps to set the
then perform the Final System Checks.
1.
Tum
Tum
2.
ON/OFF SWItch
EqualizatIOn Controls to "flat" posItIons and
3.
Playa
Note:
posItIons.
4. Slowly mcrease the
audio.
SEmNG
The
set the crossovers, follow these steps.
1.
Usmg the X-Over Mode SWItch, select the desIred mode -LPfor Low Pass,
HP
2. Usmg the Freq (Hz) SelectIOn Control, select the desIred frequency.
desIred frequency exceeds the range
the Crossover Frequency MultIplier SWItch to mcrease the value
of
-For example, 55Hz x 10
THE
GAIN
the
Gam
Control all the way counter-clockwIse.
the vehIcle's IgllltIOn SWItch to theONposItIOn.
on
the source
CDorTape and set the Volume Control at
If
the system uses an equalizer, set
Gam
THE
CROSSOVER
Clanon
for High Pass and OFF for Full Range.
10.
APX400.4 features fully adjustable front and rear crossovers.
UllltS
Control. Stop
= 550Hz
to the
ON
ItS
when
of
the Freq (Hz) SelectIOn Control, press
or
550Hz x 10 = 505kHz.
Gam
Control and
Then
tum
the
posItIOn. Set all Tone
tum
Loudness off.
75%offull level.
frequency controls to "flat"
you hear a slight distortIOn
or
by
a multIplier
If
of
To
the
3.
Repeat steps 1 and 2 for both the front and rear crossovers.
SEmNG
1.
IllltIally set the Bass Boost control to
2. LIsten to a
the Bass Boost control until a notIceable mcrease m low bass response
perceIVed.
3. Slowly adjust the Bass Boost control (up
response.
CAUTION:
Bass Boost to prevent speaker damage.
distorted (due to amplifier clippmg), lower Bass Boost to avoId shutdown from
overheatmg.
THE
BASS
BOOST
vanetyofmUSIC
If
you
hear a
ItS
full left posItIon (i.e.
styles (e.g. Rock, Rap, etc.) and slowly mcrease
or
down) to realize the best bass
"pop"
(due to speaker over-excursIOn), lower the
If
the system sounds muddy and
OdB).
IS
13
Page 14
clarion
FINAL
1.
Start the engme and turn on the source umt. After a two-second delay,
slowly mcrease the Volume Control and listen to the audio.Ifyou hear any
nOIse,
to Troubleshootmg. Depending on your system desIgn, the levels may become
qmte loud even at low Volume Control settmgs. Until you get an "audio feel"
of
the system's power, use care when adjustmg controls.
2.
Tum the Balance Controls to theIr extreme posItions and listen to the results.
Audio output should match control settmgs (audio from the left speaker when
balanceISleft).
3.
Increase the volume and venfy that the amplifier reproduces audio (at full
frequencIes) WIthout distortiOn.Ifyou hear distortiOn, check the connectiOns
and venfy that the Gam ControlISset correctly. Another possibility
damaged speakers or under-powered speakers. Once agam refer to
Troubleshootmg for additiOnal help.
4
Channel
SYSTEM
static, distortiOn or no sound at all, check the connectiOns, and also refer
CHECKS
Power
System
Amplifier
IS
TROUBLESHOOTING
Problem
NoAudio.
Solutipn
Loworno remote rum-on voltage. Check remote connections at amplifier and
source unit.
Blown amplifier fuse. Replace with new fast-blow fuse (same rating).
Power wires not connected. Check battery and ground wiring at amplifier;
also checkbattery connections.
Speaker leads shorted. Check speakercontinuity to ground, it should not show i
a common ground.
Speakers not connectedorare blown. Check speakerconnections at amplifier,
measure coil impedance.
PrQklcJtl
Audio cycles on and off.
SQ/ufWn
Thermal protection circuits are shutting amplifier off. Check location for
adequate ventilation; consult an authorized Clarion Audio Dealer
Distorted audio.
~
Gain is not set properly,ordamaged speaker cones. Review Setting Gain;
nspect eachspeaker cone for signsofdamage (Le. frozen cone, burning smell, ;
M~
14
i
~
Page 15
Problem
Audio
lacks
punch.
Solution
kern
wired incorrectly,
k polarity
! system design.
of
wires
which
causes cancellationofbass frequencies.
from
amplifiertoeach speakerasdefinedbythe
Problem
Amplifier
fuse
keeps
blowing.
,Solution
I Incorrect wiring or short circuit.
Review
connections.
,Problem
I
Whining
or ticking noiseinthe audio
Solution
Amplifierispickingupalternator
gain;
move
audio cables
away
connections on amplifier; install
wire;
check alternator and/or voltage regulator; test
noise
from
an
in-line noise filter on source unit's
watertobattery
PRODUCT
Frequency Response
Signal
THD
Input SensitiVity Low Level
Input Sensitivity Speaker Level
Max. Power Output
Cont. Power Output
2-0hm
Bndged Power
DimenSions
Current Consumption @ Max Power Output
SPECS
NOise
Ratio
Stereo Output
APX400.4
Installation and check
with
engine
on.
or radiated noise.
OWNER'S
Tum
all
wiring
down
MANUAL
input
power wires. Check power and ground
power
for
weak
battery or
20Hz - 20kHz
>95db
.05% all channels dnven
250mV - 2.5V
500mV - 5V
380w (190 x
200w (50w x4) @.08% THD
90 x 4 @ .8% THD
190
x2@.8%THD
21/8"
H x
46A @ 380 Watts
81/4"
2)
W x 12" L
add
15
Page 16
clariOri
CAR
AUDIOQBEYOND
661W.Redondo Beach Blvd.
Gardena.
1-800-GO-CLARION
www.clanon-usa.com
CA 90247
APX400.4-10
Rev.1
(02100)
Page 17
ATTENTION
INSTALLER!!!
When using the speaker (high-level) inputs, the Black
wire must be grounded at the Radio. Failure
will result in noise and improper operation.
Formore information,please see the ownersguide.
to
do this
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