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Clarion
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APX4241
User Manual
56 pgs1.9 Mb0

Clarion APX4241 User Manual

Owner’s Manual Manuel de L'utilisateur Manual del Propietario
APX AMPLIFIERS AMPLIFICATEURS APX AMPLIFICADORES APX
APX2121 APX4241 APX1301
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Thank you for purchasing this Clarionproduct.
• 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
1. FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setting the operating level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Improving bass sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Designing a more advanced system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting a source unit without RCA outputs . . . . . . . . . . . . . . . . . . . . . . . 7
Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. INSTALLATION AND WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
What is included in the box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wiring precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power and speaker connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting the gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Setting the crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Setting the bass boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Final system checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7. GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9. LIMITED WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Manuel de L'utilisateur (French) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Manu a l d e l Propi e tario (Spanish) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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The Clarion APX2121, APX4241, and APX1301 amplifiers fit a variety of system configurations and provide these features:
• 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, each with a 12dB per octave slope and full adjustment range (from 50Hz to 300Hz) to aid in audio system design.
• Bass boost circuit to reinforce low frequency signals that may be lost due to subwoofer box design.
• Adjustable input level controls with ground loop isolation to accept a wide range of input signals.
• Remote turn-on with “soft start” muting to prevent turn-on “thump”.
• Protection circuits for overheating and speaker shorts.
• 2-Ohm load capable of driving a variety of speaker systems.
• Gold-plated input/output connectors and an on-board automotive-type fuse.
• Aluminum heat sink for efficient heat dissipation.
• Low profile, compact footprint to accommodate space limitations.
1. FEATURES
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2. PRECAUTIONS
• 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 you r product at reasonable levels. While operating your vehicle,please observe all local sound ordinances 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
1. RCA input jacks
2. Front RCA input jacks
3. Rear RCA input jacks
4. Gain control
5. Front gain control
6. Rear gain control
7. Bass boost control
8. Speaker level inputs
9. Front speaker level inputs
10. Rear speaker level inputs
11. Frequency control
12. X-Over mode switch
13. Front frequency control
14. Front X-Over mode switch
15. Rear frequency control
16. Rear X-Over mode switch
17. Status indicator light
APX 1301 controls and input connections
APX 2121 controls and input connections
APX 4241 controls and input connections
814
95236
14
13
7
8
14
12 11 17
12 11 17
7
15 1016
7
177
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4. OPERATIONS
Setting the operating level
The gain controls allow you to set the nominal operating level of the amplifier from 250mV to 2.5V for RCA inputs or 500mV to 5V for speaker level inputs.This wide adjustment range accommodates virtually any source unit brand.
Improving bass sound
The amplifiers feature a narrow-frequency band bass boost circuit (known as “high-Q”).The bass boost control acts much like an equalizer with switchable gain fixed at 50Hz. Use this control to 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.
Note: If you don’t want to boost the bass frequencies, set this control to “OFF.”
Designing a more advanced system
Freq (Hz) controls
The crossover frequency is fully adjustable between 50Hz and 300Hz (30-300Hz on the APX1301). Use the high-pass/low-pass filter controls, along with your speaker manufacturer’s recommended crossover frequencies, to quickly design a more advanced system.
Note: If you set either of the X-Over mode switches “OFF,” varying the Freq (Hz) control has no effect.
X-Over mode switches
These switches are equipped with 12dB per octave electronic filters for precise frequency attenuation with minimal phase distortion. To activate each filter, slide the X-Over mode switch to either HP or LP (APX4241 and APX2121 only).
Connecting a source unit without RCA outputs
The speaker level inputs provide connections for a high-level stereo source. Use them if your source unit does not have RCA outputs.
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5. INSTALLATION AND WIRING
Care and maintenance
Cleaning the cabinet
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 ser viceable 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.
Read these instructions and the following precautions carefully.
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 damage the unit’s internal circuitry over time.
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• Mount the amplifier on a rigid 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 front panel controls are accessible after installation.
• 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.
• Make sure the holes you drill will not cut into the fuel tank, fuel lines, brake lines (under the chassis) or electrical wiring.
Wiring precautions
Read all wiring precautions. If you are not sure of the connections, contact your authorized Clarion dealer.
• 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.
• Extra cable can cause signal loss and act as an antenna for noise.Use only highquality 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 damage the equipment.
• When routing RCA cables, keep the cables away from the power cables and out put speaker wires.
• A good chassis ground connection is critical to minimize resistance and avoid noise problems.Use the shortest wire possible. Clean off any paint prior to making connections. Securely connect the ground wire to the car chassis and the source unit ground.
• 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.Adding an external fuse protects the electrical system from short circuits that can result in a fire.
• Do not open the case.There are no user-ser viceable parts inside. If you require assistance, consult your Clarion dealer or an authorized Clarion service center.
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Power and speaker connections
1. Left front speaker output
2. Right front speaker output
3. Left speaker output
4. Right speaker output
5. Remote turn-on input
6. Ground input
7. Battery +12V input
8. Fuse
9. Left rear speaker output
10. Right rear speaker output
11. Mono speaker output
APX1301 power and speaker connections
APX4241 power and speaker connections
APX2121 power and speaker connections
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2Ω MIN
4Ω 4Ω
8
FUSE
25A 25A
3 4 8 756
FUSE
30A
8 756
FUSE
30A 30A
FRONT
REAR
4Ω BRIDGED
L R
12
4Ω BRIDGED
L
R
756
+12V REM GND
+12V REM GND
+12V REM GND
9
10
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Applications
The APX1301 car audio ampifier can be used in a variety of system applications.
Mono subwoofer system
This application shows the amplifier in mono operation to drive a subwoofer.
Set X-Over mode to LPF and adjust the frequency to the subwoofer specifications.
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2Ω MIN
4Ω 4Ω
FUSE
25A 25A
+12V REM GND
Subwoofer
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Subwoo fer system
In this application, the amplifier is used in a subwoofer system.
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Subwoofer Subwoofer
2Ω MIN
4Ω 4Ω
FUSE
25A 25A
+12V REM GND
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Four-channel stereo system
In this application, the APX4241 is used as a four-channel amplifier to drive four full-range speakers in stereo.
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FRONT
REAR
4Ω BRIDGED
L
R
FUSE
30A 30A
FL
FR
RR
RL
+12V REM GND
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Two-channel high power system
In this application, the APX2121 is used to drive a pair of subwoofers.
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 counterclockwise.
2.Turn the vehicle’s ignition switch on.
3.Turn the source unit on.
4.Set all tone or equalization controls to flat positions and turn loudness off.
5.Play a CD or tape and set the volume control to 75% of full level.
Note: If the system uses an equalizer, set all frequency controls to the flat
position.
6.Slowly increase the gain control. Stop when you hear a slight audio distor tion.
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4Ω BRIDGED
L R
Subwoofer Subwoofer
FUSE
30A
+12V REM GND
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Setting the crossover
Clarion amplifiers feature fully-adjustable crossovers.
1.Using the X-Over mode switch, select either LP (low pass) or HP (high pass) or OFF for full range.
2.Using the Freq (Hz) control, select the frequency.
Setting the bass boost
1. Initially set the bass boost control to off.
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.
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.Star t 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 low level 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).
4.Increase the volume and verify that the amplifier reproduces the audio at full frequencies without distortion. If you hear distortion check the connections and verify that the gain control is set correctly. Another cause of distor tion could be under powered or damaged speakers.Refer to Troubleshooting.
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6.TROUBLESHOOTING
No Audio
• Low 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 batter y 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 blown: check speaker connections at the amplifier; measure coil impedance.
Audio cy cles on and off
• Thermal protection circuits are shutting the amplifier off.
• Check the location for adequate ventilation.Consult an author ized Clarion audio dealer.
Distorted audio
• Gain is not properly set or the speaker cones are damaged.
• Review the instructions for setting the gain.Inspect each speaker cone for signs of damage, such as a frozen cone, burning smell, etc.
Amplifier fuse keeps blowing
• The wiring is connected incorrectly or there is a shor t circuit.
• Review the installation precautions and diagram in this manual and check all wiring connections.
Whining or ticking noise when engine on
• The amplifier is picking up alternator or radiated noise.
• Turn down input gain.
• Move the audio cables away from the power wires.
• Check the power and ground connections on the amplifier and install an in-line noise filter on the source unit’s power wire.
• Check the alternator and/or voltage regulator.Test for a weak battery or add water to the battery.
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7. GLOSSARY
8. SPECIFICATIONS
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.
Octave:
the musical principle of dividing sound frequencies into the eight notes of
the musical scale.
Ohm
: unit of electric resistance
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.
Note: The technical data and the design of the equipment may change without prior notice for the sake of technical improvements.
APX4241 Maximum power output
Continuous rated power * Typical power in bridged mode ** Typical power in 2-Ohm load ** IM distortion S/N (A-weighted) Floor noise Channel separation Frequency response Line level input sensitivity Speaker level input sensitivity Input impedance Allowable battery voltage Size
400W 60W x 4 100W x 2 80W x 4
0.1%
75dB
A / N
60dB 20-20kHz full range 200mV to 5.5 Volts 2V to 9 Volts 22K Ohm
9.6 to 15.6 Volts 11 7/8”x11”x2 1/4”
* THD 0.1%, 10Hz-20kHz, into 4-Ohms, @ 14.4V, all channels driven ** THD 0.1%, 10Hz-20kHz, @ 14.4V, all channels dr iven
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