FREE ENGLISH CLARION APX2121 (01) PDF USER GUIDE

FREE ENGLISH CLARION APX2121 (01) PDF USER MANUAL

FREE ENGLISH CLARION APX2121 (01) PDF OWNER GUIDE

FREE ENGLISH CLARION APX2121 (01) PDF OWNER MANUAL

FREE ENGLISH CLARION APX2121 (01) PDF REFERENCE GUIDE

FREE ENGLISH CLARION APX2121 (01) PDF INSTRUCTION GUIDE

FREE ENGLISH CLARION APX2121 (01) PDF REFERENCE MANUAL

FREE ENGLISH CLARION APX2121 (01) PDF INSTRUCTION MANUAL

FREE ENGLISH CLARION APX2121 (01) PDF OPERATING INSTRUCTIONS


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CLARION APX2121 (01) PDF SUMMARY:

What should I do before operating this equipment?

Please read this owner’s manual in its entirety before operating this equipment.


After reading this manual, where should I keep it?

After reading this manual, keep it handy, such as in your glove compartment.


Why should I save my sales receipt?

The warranty at the end of this manual and your sales receipt are essential for warranty service.


What should I do if this equipment causes harmful interference to radio or television reception?

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.


What are the features of the Clarion APX2121, APX4241, and APX1301 amplifiers?

  • 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.

What precautions should I take when operating this product?

  • 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.

What should I do if the unit becomes wet?

If the unit becomes wet, turn off all power and ask your authorized Clarion dealer to clean or service the unit.


What may result from exposure to continuous sound levels of 85dB or higher?

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, how should I use my product?

Please use your product at reasonable levels.


What should I observe for my safety while operating my vehicle?

While operating your vehicle, please observe all local sound ordinances for your safety.


What should I do if I do not have the required knowledge and experience to successfully complete the installation?

If you do not have the required knowledge and experience to successfully complete the installation, consult an authorized Clarion dealer about professional installation options.


What do the gain controls allow me to do?

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.


Why is a wide adjustment range helpful?

This wide adjustment range accommodates virtually any source unit brand.


What does the bass boost control act like?

The bass boost control acts much like an equalizer with switchable gain fixed at 50Hz.


What can I use the bass boost control to do?

Use this control to tune low-frequency audio response to compensate for a less than ideal subwoofer enclosure design.


What does the added boost produce?

The added boost produces rich, full bass tones that are normally difficult to reproduce in the car audio environment.


Where should I set this control if I don’t want to boost the bass frequencies?

If you don’t want to boost the bass frequencies, set this control to “OFF.”


How adjustable is the crossover frequency?

The crossover frequency is fully adjustable between 50Hz and 300Hz (30-300Hz on the APX1301).


Along with your speaker manufacturer’s recommended crossover frequencies, what can I use the high-pass/low-pass filter controls to do?

Use the high-pass/low-pass filter controls, along with your speaker manufacturer’s recommended crossover frequencies, to quickly design a more advanced system.


If I set either of the X-Over mode switches “OFF,” what effect does varying the Freq (Hz) control have?

If you set either of the X-Over mode switches “OFF,” varying the Freq (Hz) control has no effect.


What are the X-Over mode switches equipped with?

These switches are equipped with 12dB per octave electronic filters for precise frequency attenuation with minimal phase distortion.


How do I activate each filter?

To activate each filter, slide the X-Over mode switch to either HP or LP (APX4241 and APX2121 only).


When should I use the speaker level inputs?

Use them if your source unit does not have RCA outputs.


How do I clean the cabinet?

Use a soft, dry cloth to gently wipe dust and dirt from the unit.


What substances should I avoid using to clean the cabinet?

Do not use benzene, thinner, car cleaner, or other cleaners. These substances may damage the unit or cause the paint to peel.


What should I do in the event that trouble arises?

In the event that trouble arises, never open the case or disassemble the unit.


Why shouldn’t I open the case?

The internal parts are not serviceable by the user. Opening any components will void the warranty.


What might changes or modifications to this product not approved by the manufacturer do?

Changes or modifications to this product not approved by the manufacturer will void the warranty and will violate FCC approval.


What is included in the box in addition to the manual?

  • Amplifier
  • High-level speaker input harness

What should I do if I lack the necessary skills to install the amplifier?

If you lack the necessary skills, do not install the amplifier yourself. See your authorized Clarion dealer for installation recommendations.


What type of vehicles is this unit exclusively for?

This unit is exclusively for vehicles with a negative ground, 12V power supply.


What does this unit require for proper operation?

This unit requires additional mobile audio components for proper operation.


Where should I choose a location in the vehicle to mount the amplifier?

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.


What might happen if I mount an amplifier in a tight space without any air movement?

Although Clarion amplifiers include heat sinks and protection circuits, mounting an amplifier in a tight space without any air movement will damage the unit’s internal circuitry over time.


Where should I mount the amplifier?

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.


How should I mount the amplifier for easy system setup?

For easy system setup, mount the amplifier so that the front panel controls are accessible after installation.


What should I always do when attaching anything to a vehicle?

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.


What should I make sure of when drilling holes?

Make sure the holes you drill will not cut into the fuel tank, fuel lines, brake lines (under the chassis) or electrical wiring.


What should I do if I am not sure of the wiring connections?

If you are not sure of the connections, contact your authorized Clarion dealer.


What should I do before starting the wiring installation?

Before you start, make sure the source unit’s power switch is off.


What should I do to prevent short circuits during installation?

To prevent short circuits during installation, disconnect the vehicle’s negative (-) battery lead before making any power connections.


What can extra cable cause?

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.


How should I make each connection?

Make sure each connection is clean and secure. Insulate final connections with electrical tape or shrink tubing.


What may damage the equipment?

Improper connections may damage the equipment.


Where should I keep the RCA cables when routing them?

When routing RCA cables, keep the cables away from the power cables and output speaker wires.


Why is a good chassis ground connection critical?

A good chassis ground connection is critical to minimize resistance and avoid noise problems.


How should the ground wire be connected?

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.


Where should I connect an external fuse and what should it be rated to?

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.


Why is adding an external fuse important?

Adding an external fuse protects the electrical system from short circuits that can result in a fire.


What should I do if I require assistance?

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.


How can I use the APX1301 car audio amplifier?

The APX1301 car audio amplifier can be used in a variety of system applications including:

  • 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.
  • Subwoofer system. In this application, the amplifier is used in a subwoofer system.

How do I set the gain control?

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 distortion.

How do I set the crossover?

Clarion amplifiers feature fully-adjustable crossovers. To set the crossover, follow these instructions:

  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.

How do I set 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, lower the bass boost to prevent damage to the speaker.

What are the final system checks?

  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 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 distortion could be underpowered or damaged speakers. Refer to Troubleshooting.

What should I do if there is 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 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 blown: check speaker connections at the amplifier; measure coil impedance.

What should I do if the audio cycles on and off?

  • Thermal protection circuits are shutting the amplifier off.
  • Check the location for adequate ventilation. Consult an authorized Clarion audio dealer.

What should I do if there is 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.

What should I do if the amplifier fuse keeps blowing?

  • The wiring is connected incorrectly or there is a short circuit.
  • Review the installation precautions and diagram in this manual and check all wiring connections.

What should I do if there is a whining or ticking noise when the engine is 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.

What is a Crossover?

A device that limits the range of frequencies sent to a speaker or amplifier.


What is a dB?

Decibel, a measurement of the relative difference in power or intensity between two acoustic signals.


What is an Equalizer?

Component that boosts or cuts sound signal frequencies to improve the quality of the sound.


What is a Gain Control?

Gain is the amount of amplification (voltage, current or power) of an audio signal expressed in dB.


What is Hz?

Abbreviation for Hertz, a unit of frequency equal to one cycle per second.


What is an Octave?

The musical principle of dividing sound frequencies into the eight notes of the musical scale.


What is an Ohm?

Unit of electric resistance.


What is an 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.


What is a Slope?

How fast the sound gets quieter rated in dBs. The higher the dB number, the faster the frequency drops off.


What is the warranty on this Clarion product?

This Clarion product purchased from an authorized Clarion dealer is 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.


What are the conditions of the Limited Warranty and the extent of responsibility of Clarion Corporation of America (“Clarion”) under this Limited Warranty?

  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. 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.
  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.

ALL PURCHASES OF CLARION PRODUCTS FROM NON-AUTHORIZED CLARION DEALERS ARE SUBJECT TO FURTHER WARRANTY RESTRICTIONS AS DESCRIBED BELOW.

For USA and Canada only.

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