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Anleitung Zusammenfassung
CAUTION! 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. 8 apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 9 • 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’snegative (-) 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-serviceable parts inside. If you require assistance, consult your Clarion dealer or an authorized Clarion service center. 9 English apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 10 Power and speaker connections 2. MIN 4. 4.FUSE 25A 25A +12V REM GND 811 756 English APX1301 power and speaker connections 3 4 8 756 FUSE 30A +12V REM GND4. BRIDGED L R APX2121 power and speaker connections FRONT REAR 4. BRIDGED L R FUSE 30A 30A +12V REM GND 1 2 8 756 9 10 APX4241 power and speaker connections 1. Left front speaker output 7. Battery +12V input 2. Right front speaker output 8. Fuse 3. Left speaker output 9. Left rear speaker output 4. Right speaker output 10. Right rear speaker output 5. Remote turn-on input 11. Mono speaker output 6. Ground input 10 apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 11 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. 2. MIN 4. 4.FUSE 25A 25A +12V REM GND Subwoofer Set X-Over mode to LPF and adjust the frequency to the subwoofer specifications. 11 English apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 12 Subwoofer system In this application, the amplifier is used in a subwoofer system. English 2. MIN 4. 4.FUSE 25A 25A +12V REM GND Subwoofer Subwoofer 12 apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 13 Four-channel stereo system In this application, the APX4241 is used as a four-channel amplifier to drive four full-range speakers in stereo. FRONT REAR 4. BRIDGED L R FUSE 30A 30A +12V REM GND FL FR RR RL 13 English apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 14 Two-channel high power system In this application, the APX2121 is used to drive a pair of subwoofers. English FUSE 30A +12V REM GND4. BRIDGED L R Subwoofer Subwoofer 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 distortion. 14 apx2121_4241_1301.qxd 2/6/2008 11:57 AM Page 15 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...