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Owner’s manual
APX2120
APX4240
APX1300
APX AMPLIFIERS
APX2120/APX4240/APX1300 1
AMPSOwnersManual.pmd 1 2005-12-13, 17:02
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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 limi
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Contents 1. FEATURES ............................................................................................................. 4 2. PRECAUTIONS ...................................................................................................... 5 Installation............................................................................................................... 5 3. CONTROLS ............................................................................................................
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English 1. FEATURES The Clarion APX2120, APX4240, and APX1300 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 reinf
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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
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3. CONTROLS 1 4 7 11 12 8 APX1300 controls and input connections 11 12 7 4 1 8 APX2120 controls and input connections 5 6 7 7 9 14 13 2 3 15 16 10 APX4240 controls and input connections 1. RCA input jacks 8. Speaker level inputs 13. Front frequency control 2. Front RCA input jacks 9. Front speaker level inputs 14. Front X-Over mode switch 3. Rear RCA input jacks 10. Rear speaker level 15. Rear frequency control 4. Gain control inputs 16. Rear X-Over mode switch 5. Front gain control 11. Freq
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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 45Hz. Use this control to tune low-freque
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English 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 serviceable by the user. Opening any components will void the warranty. CAUTION! Changes or modifications to this product not appro
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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
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English Power and speaker connections 3 6 4 8 7 5 APX1300 power and speaker connections 6 3 8 7 5 4 APX2120 power and speaker connections 6 1 2 8 7 5 9 10 APX4240 power and speaker connections 1. Left front speaker output 6. Ground input 2. Right front speaker output 7. Battery +12V input 3. Left speaker output 8. Fuse 4. Right speaker output 9. Left rear speaker output 5. Remote turn-on input 10. Right rear speaker output 10 APX2120/APX4240/APX1300 AMPSOwnersManual.pmd 10 2005-12-13, 17:02
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Applications The APX1300 car audio amplifier 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. APX2120/APX4240/APX1300 11 AMPSOwnersManual.pmd 11 2005-12-13, 17:02 English
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English Subwoofer system In this application, the amplifier is used in a subwoofer system. 12 APX2120/APX4240/APX1300 AMPSOwnersManual.pmd 12 2005-12-13, 17:02
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Four-channel stereo system In this application, the APX4240 is used as a four-channel amplifier to drive four full- range speakers in stereo. APX2120/APX4240/APX1300 13 AMPSOwnersManual.pmd 13 2005-12-13, 17:02 English
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English Two-channel high power system In this application, the APX2120 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
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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 s
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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 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 co
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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 secon
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9. LIMITED WARRANTY INFORMATION For USA and Canada only Except as noted, Clarion products purchased from an authorized Clarion dealer are warranted against all defects in materials and workmanship for a period of one (1) year from date of original purchase. The following Clarion products noted below ** are warranted against all defects in materials and workmanship for a two (2) year period from the date of original purchase when purchased from AND installed by an authorized Clarion dealer. ** DR
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APX2120/APX4240/APX1300 19 AMPSOwnersManual.pmd 19 2005-12-13, 17:02
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Clarion Corporation of America All Rights Reserved. Copyright © 2006: Clarion Corp. of America 20 APX2120/APX4240/APX1300 AMPSOwnersManual.pmd 20 2005-12-13, 17:02
