Clarion | APX2181 | Owner`s manual | Clarion APX2181 Owner`s manual

Owner’s Manual
Manuel de L'utilisateur
Manual del Propietario
APX2181
APX4361
DPX2251
DPX1851
DPX11551
APX AND DPX AMPLIFIERS
AMPLIFICATEURS APX & DPX
AMPLIFICADORES APX Y DPX
English
Thank you for purchasing this Clarion product.
• Please read this owner’s manual in its entirety before operating this equipment.
• After reading this manual, keep it handy, such as in your glove compartment.
• Save your sales receipt. The warranty at the end of this manual and your sales
receipt are essential for warranty service.
FCC Approval
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to consult the dealer or an experienced radio/TV technician for help.
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Contents
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English
1. FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the operating level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Improving bass sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Matching subwoofer output to mid-range speakers . . . . . . . . . . . . .
Connecting directly to a head unit . . . . . . . . . . . . . . . . . . . . . . . . . .
Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. INSTALLATION AND WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What is included in the box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power and speaker connections . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DPX1851 and DPX11551 stackable configurations . . . . . . . . . . . . .
Setting the gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjusting the crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the bass boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Final system checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplifier shuts down after playing for a period of time . . . . . . . . . . .
Distorted audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplifier fuse keeps blowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Whining noise when engine on . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ticking noise when engine on . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APX Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DPX Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. 1-YEAR LIMITED WARRANTY INFORMATION
(APX2181, APX4361 (Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. 1-YEAR LIMITED WARRANTY INFORMATION . . . . . . . . . . . . . . .
10. 2-YEAR LIMITED WARRANTY INFORMATION . . . . . . . . . . . . . . .
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Manuel de L'utilisateur (French) . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Manual del Propietario (Spanish) . . . . . . . . . . . . . . . . . . . . . . . . . 54
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1. FEATURES
English
The Clarion APX2181, APX4361, DPX2251, DPX1851 and DPX11551 amplifiers fit
a variety of system configurations and provide these features:
• IVS - Input Voltage Selector with three sensitivity ranges on the gain control for
the ability to connect to almost any source.
• PFS - Precise Frequency Selector, a detented crossover frequency adjustment.
• Ground loop isolation for RCA inputs.
• Full frequency response with low distortion and exceptional signal-to-noise
performance.
• Advanced circuitry design provides bridgeable outputs for use in a variety of
applications.
• Independent electronic crossovers to aid in audio system design.
The DPX1851 and DPX11551 each have 24dB per octave slope and full
adjustment range from 30Hz to 250Hz.
The APX2181, APX4361, and DPX2251 each have 12dB per octave slope and
full adjustment range from 50Hz to 550Hz.
• Bass boost circuit on APX series amps to reinforce low frequency signals.
• Remote turn-on with “soft start” muting to prevent turn-on “thump”.
• Protection circuits for overheating and speaker shorts.
• APX2181, APX4361 and DPX2251 are 2-Ohm load capable of driving a variety of
speaker systems.
• Gold-plated input/output connectors and on-board automotive-type fuses.
• Aluminum heat sink for efficient heat dissipation.
• SLI - Speaker Level Inputs on amps for integration with factory sound systems.
• Low profile, compact footprint to accommodate space limitations.
• SSF - Adjustable subsonic filter on the DPX1851 and DPX11551 can be turned
down to 10Hz.
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2. PRECAUTIONS
English
• Do not operate this product in ways other than those described in this manual.
• Do not disassemble or modify this product.
• Do not pour liquid or poke foreign objects into the unit. Water and humidity will
damage internal circuitry.
• If the unit becomes wet, turn off all power and ask your authorized Clarion dealer
to clean or service the unit.
Failure to observe these precautions may damage your car or the amplifier, and may
void the warranty.
WARNING
Exposure to continuous sound levels of 85dB or higher may
result in hearing loss. Although Clarion products are capable
of producing high sound pressure levels, please use your
p roduct at reasonable levels.
While operating your vehicle, please observe all local sound
o rdinances for your safety.
Installation
Installation of mobile audio and video components requires experience with a variety
of mechanical and electrical procedures. Although this manual provides general
installation and operation instructions, it does not show the exact installation methods for your particular vehicle.
If you do not have the required knowledge and experience to successfully complete
the installation, consult an authorized Clarion dealer about professional installation
options.
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3. CONTROLS
7
1
2
4
6
3
8
9
5
11
English
10
APX2181 signal connections and audio adjustments
7
1
10
7
3
4
8
2
4
9
6
3
12
8
9
5
11
APX4361 signal connections and audio adjustments
1.
2.
3.
4.
5.
6.
6
RCA Input Jacks
IVS (Input Voltage Selector)
PFS (Precise Frequency Selector)
Gain Control
Output Mode Switch
BBC (Bass Boost Control)
7. SLI (Speaker Level Inputs)
8. Crossover Frequency Multiplier
9. Crossover Function Switch
10. RCA Input/High Input Switch
11. Status Indicator Lights
12. Source Select Switch
8
1
2
6
4
3
9
10
11
English
5
16
17
DPX2251 signal connections and audio adjustments
5
16
1
13
8
2
14
6 15
4
12
3
7 17
DPX1851 and DPX11551 signal connections and audio adjustments
1.
2.
3.
4.
5.
6.
7.
8.
9.
RCA Input Jacks
IVS (Input Voltage Selector)
PFS (Precise Frequency Selector)
BBC (Bass Boost Control)
SLI (Speaker Level Inputs)
Gain Control
PCS (Polarity Control Switch)
RLC (Remote Level Control) Port
Crossover Frequency Multiplier
10. Crossover Function Switch
11. Output Mode Switch
12. Subsonic Filter Frequency Selector
13. Slave RCA Jack
14. RCA Output Jack
15. Master/Slave Selector
16. RCA Input/High Input Switch
17. Status Indicator Lights
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4. OPERATIONS
Selecting input voltage
English
APX and DPX amplifiers accommodate a wide range of signal input voltages (0.2V
to 8V). This wide range is split up into three ranges, which are accessible through
switches located in the “Gain” area of the amplifier.
• 0.2V-0.6V selects an input sensitivity range between 200mV and 600mV.
• 0.6-2V selects an input sensitivity range between 600mV and 2V.
• 2V-8V selects an input sensitivity range between 2V and 8V.
The gain rotary control operates within these voltage windows.
Note:
Most decks, even 4V and 5V units do not operate at full output voltage.
This requires the switch to be set in the 0.6-2V range.
Setting the operating level
The gain switches allow you to set the nominal operating level of the amplifier from
0.2 to 8V for RCA inputs or 500mV to 5V for speaker level inputs. This wide adjustment range accommodates virtually any source unit brand.
Once you set the correct range using the IVS, you must adjust the gain to match the
amplifiers sensitivity to that of the source unit. The gain control is not a volume control. It exists only to allow an amplifier to be used with different models and brands of
head units.
Improving bass sound
The amplifiers feature a narrow-frequency band bass boost circuit (known as “highQ”). Acting much like an equalizer, the bass boost control lets you tune low-frequency audio response to compensate for a less than ideal subwoofer enclosure design.
The added boost produces rich, full bass tones that are normally difficult to reproduce in the car audio environment.
• The APX2181, APX4361, and DPX2251 have a switchable gain that is fixed at
45Hz. If you don’t want to boost the bass frequencies, set this control to “OFF.”
• The DPX1851 and DPX11551 have a variable-frequency bass boost control
from 30Hz to 125Hz. They do not have a bass boost on/off switch, but a level
control that goes from 0dB to 15dB.
CAUTION
This control can dramatically increase the power output level
and could cause speaker damage if you over use it.
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Matching subwoofer output to mid-range speakers
English
The DPX1851 and DPX11551 feature a polarity control switch for reversing the
polarity of the output signal. This can be useful when matching the acoustic output
of your subwoofers to the output of your mid-range speakers.
Connecting directly to a head unit
The amps provide connections directly to a head unit without a pre-amp output,
such as a factory-installed head unit.
WARNING!
When using the speaker (high-level) inputs, the black wire
must be grounded at the radio. Failure to do so will result
in noise and/or improper operation.
Care and maintenance
Cleaning the case
Use a soft, dry cloth to gently wipe dust and dirt from the unit.
Do not use benzene, thinner, car cleaner, or other cleaners. These substances may
damage the unit or cause the paint to peel.
Servicing the unit
In the event that trouble arises, never open the case or disassemble the unit. The
internal parts are not serviceable by the user. Opening any components will void the
warranty.
CAUTION
Changes or modifications to this product not approved by the
manufacturer will void the warranty and will violate FCC approval.
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5. INSTALLATION AND WIRING
Read these instructions and the following precautions carefully.
English
What is included in the box
In addition to this manual, the box contains:
• Amplifier
• High-level speaker input harness
Mounting precautions
If you lack the necessary skills, do not install the amplifier yourself. See your
authorized Clarion Dealer for installation recommendations.
• This unit is exclusively for vehicles with a negative ground, 12V power supply.
• This unit requires additional mobile audio components for proper operation.
• Choose a location in the vehicle that provides adequate ventilation around the
amplifier. Although any moving air dissipates heat, cool air should run along the
length of the fins rather than across them.
CAUTION
Although Clarion amplifiers include heat sinks and protection
circuits, mounting an amplifier in a tight space without any air
m ovement will reduce performance and damage the unit’s internal
circuitry over time.
The DPX1851 does not have a fan. Install it such that air can
flow to the bottom of the amplifier.
The DPX11551 has two fans. Mounted in the ends of the unit,
they bl ow through the length of the amplifier. Ensure a 3-inch
clearance between the power/speaker and the control ends fo r
p roper ventilation.
• Mount the amplifier on a firm, flat surface away from subwoofer enclosures or to
any area that is prone to vibration. Do not install the amplifier on plastic or on any
other combustible material.
• For easy system setup, mount the amplifier so that the adjustment controls are
accessible after installation.
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• Make sure the holes you plan to drill will not cut into the fuel tank, fuel lines, brake
lines (under the chassis) or electrical wiring. Don’t guess. Check first.
Wiring precautions
Read all wiring precautions. If you are not sure of the connections, contact your
authorized Clarion Dealer.
• Do not open the case. There are no user-serviceable parts inside. If you require
assistance, consult your Clarion Dealer or an authorized Clarion Service Center.
Power
• Before you start, make sure the source unit’s power switch is off.
WARNING!
To prevent short circuits during installation, disconnect the
vehicle’s negative (-) battery lead before making any power
connections.
Fuses
• To protect the vehicle from fire or explosion in the event of a collision, add an
external fuse to the amp’s positive (+) power lead and connect it as close as
possible to the vehicle’s plus (+) battery terminal.
Use a fuse rated to the total current consumption of the amplifier. Fuses mounted
near the battery should be ~10 Amps larger than fuses on the amplifier itself.
If you are using more than one amplifier, add the total current consumption for the
entire system and use the closest available fuse. For example, if you’re connecting
both an APX2181 and an APX4361, install a 100 Amp fuse at the battery.
• Power wire size can greatly affect the performance of your audio system. The
Power wire size table indicates the minimum power wire requirements for proper
operation.
Power wire size table
<12 feet total electrical path length
12-22 feet total electrical path length
Wire size
Wire size
Maximum fuse
Maximum fuse
8 Awg
70 Amp
8 Awg
40 Amp
4 Awg
170 Amp
4 Awg
50 amp
2 Awg
240 Amp
2 Awg
140 Amp
0 Awg
400 Amp
0 Awg
200 Amp
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English
• Always use great care when attaching anything to a vehicle! Check clearances on
all sides of the planned installation before drilling any holes or installing any
screws.
Cables
• Whenever possible, route power wire and signal wire on opposite sides of the
vehicle. This prevents the signal cables from picking up electrically radiated noise.
English
• Protect all wire from damage. Where a power wire passes through the fire wall or
near exposed metal edges, protect the wire with a rubber or plastic grommet. Use
wire loom where possible for further protection.
• Extra cable can cause signal loss and act as an antenna for noise. Use only high
quality RCA cables that are no longer than necessary to make a direct
connection with the source unit and amplifiers.
• Make sure each connection is clean and secure. Insulate final connections with
electrical tape or shrink tubing.
CAUTION
Improper connections may result in
unreliable operation and damage the
amplifier or the vehicle.
Grounding the amplifier
• A good chassis ground connection is
critical to minimize resistance and avoid
noise problems.
Use the shortest wire possible.
Clean off any paint, primer or sound
deading prior to making this connection.
To minimize resistance and avoid noise
problems, securely connect the ground
wire to the car chassis and the source
unit ground. Using existing bolts is not
recommended.
External fuse rating table
Model
Fuse rating
APX2181
APX4361
DPX2251
DPX1851
DPX11551*
30 Amp
50 Amp
50 Amp
90 Amp
200 Amp
* This amplifier has no amplifiermounted fuses. Always use a 200
Amp fuse installed at the battery.
• The last connection you make should
be the ground wire at the amplifier. As the
power supply capacitors in the amplifier are not charged, a spark may be
produced when you make this connection.
Use a test light with an incandescent bulb between the ground terminal and the
power wire to charge these capacitors if this is a concern. The ground wire is the
most important connection to the amplifier. Make sure it is both electrically and
mechanically sound.
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Power and speaker connections
The rear panel contains the power and speaker ports.
5
7
8
3
4
English
6
APX2181 power and speaker connections
6
5
7
8
1
2
9
10
APX4361 power and speaker connections
1.
2.
3.
4.
5.
Left front speaker output
Right front speaker output
Left speaker output
Right speaker output
Remote turn-on input
6. Ground input
7. Battery 12V input
8. Fuses
9. Left rear speaker output
10. Right rear speaker output
13
5
4
7
3
English
DPX1851 power and speaker connections
5
7
4
3
DPX11551 power and speaker connections
5
4
7
6
1
2
DPX2251 power and speaker connections
1.
2.
3.
4.
14
Left rear speaker output
Right rear speaker output
Mono speaker output
Remote turn-on connection
5. Ground input
6. Fuses
7. Battery 12V connection
Applications
In this application, the rear channels are bridged for mono operation to drive a
subwoofer while the front channels are available to drive a set of full-range speakers.
Mono Amp configuration (APX2181)
•
•
•
•
Set crossover mode to LP
Set input mode switch to L + R (Mono)
Set crossover frequency to ~80Hz
Fine-tune crossover frequency to suit
musical tastes and performances
• 2Ω min stereo / 4Ω min mono
Mono Amp configuration (APX4361)
•
•
•
•
Set rear crossover mode to LP
Set input mode switch to L + R (Mono)
Set crossover frequency to ~80Hz
Fine-tune crossover frequency to suit
musical tastes and performances
• 2Ω min stereo / 4Ω min mono
Note:
You may bridge the front, rear or both pairs of channels using the above settings.
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English
Mono subwoofer system (APX2181 and APX4361)
Two-channel full-range or subwoofer system (APX2181)
In this application, the APX2181 is used to drive two speakers.
English
Subwoofers
Full-range co-axial or
Component speakers
Subwoofer in stereo
•
•
•
•
Set crossover mode switch to LP
Set crossover frequency to ~80Hz
Fine-tune as required
2Ω min stereo / 4Ω min mono
Full-range speakers or components in stereo
• Set crossover mode switch to OFF
Components speakers in stereo with separate subwoofer amp
• Set crossover mode switch to HP
• Set crossover frequency to
~200Hz for 4-inch speakers
~100Hz for 5.25-inch speakers
~75Hz for 6.5-inch speakers
~65Hz for 6 x 9-inch speakers
Subwoofers and component speakers at the same time
• Set crossover mode switch to OFF
• Install passive crossovers on subwoofers (inductor) and components (capacitor)
16
Four-channel high-power system (APX4361)
English
In this application, the APX4361 is used as a four-channel amplifier to drive four
speakers in stereo with fader control.
Front Left
Full range
Rear Right
Full range
Front Right
Full range
Rear Left
Full range
Four speakers in stereo - full range
• Set crossover mode switch to OFF
Four speakers in stereo - filtered
If the front or rear speakers are smaller than 5.25”, you may decide to enable
the crossover. The following apply to the front or rear channels with the small
speakers.
• Set crossover mode switch to HP
• Set crossover frequency to
~200Hz for 4-inch speakers
~350Hz for 3.5-inch speakers
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2-Ohm subwoofer system (DPX1851/DPX11551)
This application shows a DPX1851 or DPX11551 driving a pair of DVC 2 Ohm
subwoofers.
English
DVC 2 Ohm
Subwoofer
DVC 2 Ohm
Subwoofer
DPX1851/DPX11551 speaker configuration
The units produce maximum power when connected to a 2 Ohm load. Under no
circumstance should loads under 2 Ohms be used with these units.
WARNING
Do not connect a load less than 2-Ohm as permanent damage
may occur and the warranty will be nullified.
The following DPX1851 or DPX11551 configurations achieve full power.
Speaker configurations
Driver type
Single-voice coil - 8 Ohm
Single-voice coil - 4 Ohm
Single-voice coil - 2 Ohm
Dual-voice coil - 8 Ohm
Dual-voice coil - 4 Ohm
Dual-voice coil - 2 Ohm
Quantity
4
2
4
2
4
2
Wiring
Parallel
Parallel
Parallel/Series
Parallel
Parallel/Series
Series/Parallel
Net load
2
2
2
2
2
2
Ohm
Ohm
Ohm
Ohm
Ohm
Ohm
Other speaker configurations are possible using a combination of series and parallel
wiring. See your authorized Clarion dealer for assistance.
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DPX1851 and DPX11551 stackable configurations
English
In this mode, the master amp’s front-panel controls apply to all amplifiers.
For example, setting the crossover frequency on the master sets it on all slaves. This
works for all front-panel controls.
Multiple amplifiers can be daisy-chained together. For example, if you had six
DPX1851s in a show car, you could control all of them from one master unit (and
one remote).
The following describes the configuration of the amplifiers:
Master
• Route input from the head into the normal mode inputs.
• Set the master/slave switch to Master.
• Route a single RCA cable from the Slave Out to first slave unit.
First slave
• Set the master/slave switch to Slave.
• Route a single RCA cable from the master Slave Out to the
current amplifier’s Slave In.
Additional slave(s) • Set the master/slave switch to Slave.
• Route a single RCA cable from the previous amplifier’s Slave
Out to the current amplifier’s Slave In.
Each amplifier can independently control separate speaker loads (assuming the
phase switch on all amplifiers is set the same).
Or, to power a large single load (phase switch opposite on the amplifier), you can
bridge across the amplifiers: + and + to load, - and - to each other. The master amp
is “speaker +” for in-phase operation.
Any pair of amplifiers could also be bridged, but be careful to set the phase switches
correctly.
Setting the gain
After completing the installation, follow these steps to set the gain control and perform the final system checks.
1. Turn the gain control all the way down (counterclockwise).
2. Select the proper input voltage range using the IVS. See “Selecting Input Voltage”
in the “Operations” section of this manual.
3. Turn the vehicle’s ignition switch on.
4. Turn the audio system on with the volume turned all the way down.
5. Set all tone or equalization controls to flat positions and turn loudness off.
6. Play a CD and turn the volume up on the head unit until you hear distortion. This
should be most of the way up.
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7. Turn the volume back down slightly.
8. Slowly increase the gain control (clockwise). Stop when you hear a slight audio
distortion.
English
When the gain is properly set, you should achieve maximum undistorted output with
the volume turned up all the way, not half way.
If an oscilloscope is available, monitor the output of the amplifier with the scope,
watching for clipping of the waveform. Set the gain so that only minor clipping
occurs.
Adjusting the crossover
The APX2181, APX4361 and DPX2251 amplifiers feature fully-adjustable
crossovers.
The DPX1851 and DPX11551 do not have a way to disable the low-pass 24dB slope
crossover.
1. On the APX2181, APX4361, and DPX2251, use the X-Over mode switch to select
either LP (low pass) or HP (high pass) or OFF for full range.
2. Using the Frequency (Hz) selection control, select the frequency.
Setting the bass boost
1. Initially set the bass boost control to the OFF position.
2. Listen to a variety of music styles (for example, rock, rap, etc.) and switch the
bass boost control on until you notice an increase in low bass response.
Note:
Using the bass boost requires the amplifier to produce a great deal of
additional power. Use bass boost sparingly.
CAUTION
If you hear a pop caused by speaker overexertion, l ower
the bass boost to prevent damage to the speaker.
Final system check s
1. Start the engine and turn on the source unit.
2. After a two-second delay, slowly increase the volume control and listen to the
audio.
If you hear any noise, static, distortion or no sound at all, check the connections
and refer to Troubleshooting. Depending on your system, the volume may become
quite loud even at moderate volume control settings. Until you get an “audio feel”
for the system’s power, use care when adjusting the controls.
3. Turn the balance controls to their extreme positions and listen to the results.
Audio output should match control settings (audio from the left speaker when
balance is left).
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4. Increase the volume and verify that the amplifier reproduces the audio at full
frequencies without distortion.
English
If you hear distortion check the connections and verify that the gain control is set
correctly. Another cause of distortion could be underpowered or damaged
speakers. Refer to Troubleshooting.
6. TROUBLESHOOTING
Indicator lights
The APX2181, APX4361, DPX1851 and DPX11551 have lights that indicate
amplifier status.
Blue top
Red endBlue endLED
panel light
panel light
Meaning
On
Off
Off
Amplifier running normally
On
Alternating between
In thermal protection mode
red and blue
Slow blink
Slow out-of-sync
Off
Over voltage;
blink
reduce the input voltage
Quick blink Quick in-sync
Off
Short circuit protection
blink
3 blinks,
3 blinks,
Off
Repeated shorts detected;
then pause then pause
remove the short circuit, wait
5 minutes for error condition
to clear; or clear condition by
removing the main power, for
example, by pulling the fuse.
No Audio
• L ow or no remote turn-on voltage: check remote connections at the amplifier
and source unit.
• Blown amplifier fuse: replace with a new fast-blow fuse (same rating).
• Power wires not connected: check battery and ground wiring at the amplifier
and check the battery connections.
• Speaker leads shorted: check speaker continuity to ground; it should not show a
common ground.
• Speakers not connected or are bl own: check speaker connections at the
amplifier and measure at speakers. Measure coil impedance at amplifier with
speaker wires disconnected.
21
Amplifier shuts down after playing for a period of time
• Thermal protection circuits are shutting the amplifier off: Check the location
for adequate ventilation. Relocate amplifier as required. Consult an authorized
Clarion audio dealer.
English
Distorted audio
• Gain is not properly set: review the instructions for setting the gain.
• Speaker cones are damaged: inspect each speaker cone for signs of damage,
such as a frozen cone, burnt smell, separated or ripped surround or separated
spider.
Amplifier fuse keeps bl owing
• Incorrect wiring or short circuit: review the installation and check all wiring
connections.
Fuse rating table
• Amplifier being driven too hard : Turn down the
volume, gain or bass boost.
Model
Fuse rating
• Undersized or faulty fuse installed: Replace the
APX2181 30 Amp
amplifier fuse with the same rating fuse as the one
APX4361 50 Amp
that shipped with the unit.
DPX2251 50 Amp
Note:
DPX1851 90 Amp
The DPX11551 ships with a 200 Amp, ANL-type
DPX11551 200 Amp
fuse; mount it external to the unit, near the battery.
Whining noise when engine on
• RCA cables too close to the power wire: Separate RCA and power cables.
Ground loops are caused by a mismatch in the ground potential (voltage)
between two sources. Current flows through the shield of the RCA cable and is
quickly picked up by the amplifier. There are several ways to solve this problem:
• Re-ground the amplifier to a more electrically conductive location.
• Re-ground the head unit to a more electrically conductive location.
• Run a ground wire from the head unit to the amplifier ground.
• Upgrade or replace the ground wire on the battery and alternator.
• Run a ground cable from the negative terminal of the battery to the amplifier.
• Wire the entire audio system using a single connection point to the chassis.
• Induced noise: Relocate components away from electrical noise sources:
• Engine control computers.
• ABS brake control modules.
22
Ticking noise when engine on
• High voltage ignition pro blem: Check for problems with the ignition system and
replace components as required.
English
• Cracked distributor caps
• Carbon traces on plug wires
• Loose spark plugs
7. GLOSSARY
Crossover: A device that limits the range of frequencies sent to a speaker or
amplifier.
dB: decibel, a measurement of the relative difference in power or intensity between
two acoustic signals.
Equalizer: Component that boosts or cuts sound signal frequencies to improve the
quality of the sound.
Gain control: gain is the amount of amplification (voltage, current or power) of an
audio signal expressed in dB.
Hz: Abbreviation for Hertz, a unit of frequency equal to one cycle per second.
IVS: Input Voltage Selector
Octave: the musical principle of dividing sound frequencies into the eight notes of
the musical scale.
Ohm: unit of electric resistance
PFS: Precise Frequency Selector
RCA input/output: port through which sound travels in and out of the system; “RCA”
refers to the type of connector, which was first manufactured by the Radio
Corporation of America.
Slope: how fast the sound gets quieter rated in dBs. The higher the dB number, the
faster the frequency drops off.
23
8. SPECIFICATIONS
English
Note:
The technical data and the design of the equipment may change
without prior notice for the sake of technical improvements.
APX Amplifiers
Parameter
APX4361
APX2181
Maximum power output
170W x 4
170W x 2
Continuous rated power
90W x 4
90W x 2
Typical power in bridged mode
320W x 2
320W x 1
Typical power in 2-Ohm load
160W x 4
150W x 2
THD (1KHz, 10W, 4 Ohms)
0.05%
0.05%
IM distortion
0.08%
0.08%
S/N (A-weighted)
86dB
86dB
Floor noise
2mV
2mV
Channel separation
70dB
70dB
Frequency response
10Hz to 50kHz
10Hz to 50kHz
Line level input sensitivity
200mV to 8 Volts
200mV to 8 Volts
Speaker level input sensitivity
600mV to 20 Volts
600mV to 20 Volts
Input impedance
33K Ohms
33K Ohms
Allowable battery voltage
10.5 to 16.5 Volts
10.8 to 16.5 Volts
Size
12-1/4"x10-1/8"x2-3/8”
10"x10-1/8"x2-3/8"
These specications are Amplier Power Standard CEA-2006 Compliant.
24
Parameter
DPX11551
DPX1851
DPX2251
Maximum power output
1900W
1250W
1000W
Continuous rated power
850W x1
(11Hz-220Hz)
460W x1
(11Hz-220Hz)
180Wx2
Typical power in bridged mode Not bridgeable;
stackable
with second
DPX11551
Not bridgeable;
stackable
with second
DPX1851
600W
Typical power in 4-Ohm load
850W
460W
180W x 2
Typical power in 2-Ohm load
1550W
850W
300W x 2
S/N (A-weighted)
63dB
68dB
86dB
Floor noise
1mV
1mV
1.5mV
Channel separation
Mono
Mono
70dB
Frequency response (±1.0dB) 10 to 230Hz
10 to 230Hz
18 to 30 kHz
Line level input sensitivity
0.2 to 8V
with IVS
0.2 to 8V
with IVS
0.2 to 8V
with IVS
Input impedance
22K Ohms
22K Ohms
22K Ohms
Allowable battery voltage
10 to 16 Volts
10 to 16 Volts
10 to 16 Volts
Size
16-3/4”x10-1/8”x2-3/8”
13-5/8”x10-1/8”x2-3/8”
English
DPX Amplifiers
12-3/4”x10-1/8”x2-3/8”
These specications are Amplier Power Standard CEA-2006 Compliant.
25
9. 1-YEAR LIMITED WARRANTY INFORMATION
APX2181, APX4361
For USA and Canada only
English
This Clarion product purchased from an authorized Clarion dealer are warranted against all defects in materials and
workmanship for a period of one (1) year from the date of original purchase, when purchased from AND installed by
an authorized Clarion dealer.
All Clarion cables, wires and other accessories if purchased from an authorized Clarion dealer are warranted against
all defects in materials and workmanship for ninety (90) days from the date of original purchase.
ALL PURCHASES OF CLARION PRODUCTS FROM NON-AUTHORIZED CLARION DEALERS ARE SUBJECT
TO FURTHER WARRANTY RESTRICTIONS AS DESCRIBED BELOW.
The conditions of this Limited Warranty and the extent of responsibility of Clarion Corporation of America ("Clarion")
under this Limited Warranty are as follows :
1. PROOF OF DATE OF PURCHASE FROM AN AUTHORIZED CLARION DEALER WILL BE REQUIRED FOR
WARRANTY SERVICE OF THIS PRODUCT. CENTERS MAY BE OBTAINED BY CONTACTING CLARION AT
THE ADDRESS LISTED BELOW.
2. This Limited Warranty will become void if service performed by anyone other than an approved Clarion Warranty
Service Center results in damage to the product.
3. This Limited Warranty does not apply to any product which has been subject to misuse, neglect or accident,
or which has had the serial number altered, defaced or removed, or which has been connected, installed,
adjusted or repaired, other than in accordance with the instructions furnished by Clarion.
4. This Limited Warranty does not cover car static or other electrical interferences, tape head or laser pick-up
cleaning or adjustments, or labor costs for the removal or reinstallation of the unit for repair.
5. The sole responsibility of Clarion under this Limited Warranty shall be limited to the repair of the product or
replacement of the product, at the sole discretion of Clarion.
6. Product must be shipped in its original carton or equivalent carton, fully insured, with shipping charges prepaid.
Clarion will not assume any responsibility for any loss or damage incurred in shipping.
7. CLARION PRODUCTS PURCHASED FROM A SOURCE OTHER THAN AN AUTHORIZED CLARION DEALER,
INCLUDING ANY AND ALL PURCHASES VIA THE INTERNET FROM A NON INTERNET AUTHORIZED
CLARION DEALER, SHALL NOT BE COVERED BY ANY CLARION LIMITED WARRANTY TO THE EXTENT
ALLOWED BY APPLICABLE LAW. IN THE EVENT AND TO THE EXTENT APPLICABLE LAW PROHIBITS
ELIMINATION OF WARRANTIES UNDER THESE CIRCUMSTANCES, THE APPLICABLE LIMITED WARRANTY
PERIOD SHALL BE DEEMED TO BE FIFTEEN (15) DAYS FROM THE DATE OF ORIGINAL PURCHASE.
8. ALL IMPLIED WARRANTIES EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW SHALL HAVE NO
GREATER DURATION THAN THE WARRANTY PERIOD SET FORTH ABOVE. UNDER NO CIRCUMSTANCES
SHALL CLARION BE LIABLE FOR ANY LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, ARISING OUT OF
THE USE OR INABILITY TO USE THE PRODUCT. BECAUSE SOME STATES DO NOT ALLOW LIMITATIONS
ON HOW LONG AN IMPLIED WARRANTY LASTS OR EXCLUSIONS OR LIMITATIONS OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
9. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
10. The laws of the State of California shall govern and control this Limited Warranty, its interpretation and enforcement.
11. Should you have any difficulties with the performance of this product during the warranty period, please call
Clarion or visit our web site for a listing of Authorized Warranty Service Centers in your area. You may also contact
Clarion Customer Service at the address listed below for any service help you may need with Clarion products.
In USA:
Clarion Corporation of America
Attn:Customer Service Manager
6200 Gateway Drive
Cypress, CA 90630
1-800-GO-CLARION
www.clarion.com
26
In Canada:
Clarion Canada Inc.
Warranty Service Center
2239 Winston Park Drive
Oakville, Ontario L6H 5R1
(905) 829-4600
www.clarion.com
10. 2-YEAR LIMITED WARRANTY INFORMATION
DPX2251, DPX1851, DPX11551
English
For USA and Canada only
This Clarion product purchased from an authorized Clarion dealer are warranted against all defects in materials and
workmanship for a period of two (2) years from the date of original purchase, when purchased from AND installed
by an authorized Clarion dealer.
All Clarion cables, wires and other accessories if purchased from an authorized Clarion dealer are warranted against
all defects in materials and workmanship for ninety (90) days from the date of original purchase.
ALL PURCHASES OF CLARION PRODUCTS FROM NON-AUTHORIZED CLARION DEALERS ARE SUBJECT
TO FURTHER WARRANTY RESTRICTIONS AS DESCRIBED BELOW.
The conditions of this Limited Warranty and the extent of responsibility of Clarion Corporation of America ("Clarion")
under this Limited Warranty are as follows :
1. IN THE CASE OF THE TWO (2) YEAR LIMITED WARRANTY FOR CLARION PRODUCTS, PROOF OF DATE
OF PURCHASE AND PROOF OF INSTALLATION BY AN AUTHORIZED CLARION DEALER IS REQUIRED.
INFORMATION ABOUT CLARION AUTHORIZED WARRANTY SERVICE CENTERS MAY BE OBTAINED BY
CONTACTING CLARION AT THE ADDRESS LISTED BELOW.
2. This Limited Warranty will become void if service performed by anyone other than an approved Clarion Warranty
Service Center results in damage to the products.
3. This Limited Warranty does not apply to any product which has been subject to misuse, neglect or accident,
or which has had the serial number altered, defaced or removed, or which has been connected, installed,
adjusted or repaired, other than in accordance with the instructions furnished by Clarion.
4. This Limited Warranty does not cover car static or other electrical interferences, tape head or laser pick-up
cleaning or adjustments, or labor costs for the removal or reinstallation of the unit for repair.
5. The sole responsibility of Clarion under this Limited Warranty shall be limited to the repair of the product or
replacement of the product, at the sole discretion of Clarion.
6. Product must be shipped in its original carton or equivalent carton, fully insured, with shipping charges prepaid.
Clarion will not assume any responsibility for any loss or damage incurred in shipping.
7. CLARION PRODUCTS PURCHASED FROM A SOURCE OTHER THAN AN AUTHORIZED CLARION DEALER,
INCLUDING ANY AND ALL PURCHASES VIA THE INTERNET FROM A NON INTERNET AUTHORIZED
CLARION DEALER, SHALL NOT BE COVERED BY ANY CLARION LIMITED WARRANTY TO THE EXTENT
ALLOWED BY APPLICABLE LAW. IN THE EVENT AND TO THE EXTENT APPLICABLE LAW PROHIBITS
ELIMINATION OF WARRANTIES UNDER THESE CIRCUMSTANCES, THE APPLICABLE LIMITED WARRANTY
PERIOD SHALL BE DEEMED TO BE FIFTEEN (15) DAYS FROM THE DATE OF ORIGINAL PURCHASE.
8. ALL IMPLIED WARRANTIES EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW SHALL HAVE NO
GREATER DURATION THAN THE WARRANTY PERIOD SET FORTH ABOVE. UNDER NO CIRCUMSTANCES
SHALL CLARION BE LIABLE FOR ANY LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, ARISING OUT OF
THE USE OR INABILITY TO USE THE PRODUCT. BECAUSE SOME STATES DO NOT ALLOW LIMITATIONS
ON HOW LONG AN IMPLIED WARRANTY LASTS OR EXCLUSIONS OR LIMITATIONS OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
9. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
10. The laws of the State of California shall govern and control this Limited Warranty, its interpretation and enforcement.
11. Should you have any difficulties with the performance of this product during the warranty period, please call
Clarion or visit our web site for a listing of Authorized Warranty Service Centers in your area. You may also contact
Clarion Customer Service at the address listed below for any service help you may need with Clarion products.
In USA:
Clarion Corporation of America
Attn:Customer Service Manager
6200 Gateway Drive
Cypress, CA 90630
1-800-GO-CLARION
www.clarion.com
In Canada:
Clarion Canada Inc.
Warranty Service Center
2239 Winston Park Drive
Oakville, Ontario L6H 5R1
(905) 829-4600
www.clarion.com
27
Clarion Corporation of America
All Rights Reserved. Copyright © 2007 Clarion Corp. of America
APXDPXManual Rev. 1 (11/07)
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