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Manafacture: Clarion File size: 1.67 mb File name: Language of manual:

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 Maximum fuse Wire size 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 11 English APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 12 English 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. • 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 unreliableoperation and damagethe 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 30 Amp APX4361 50 Amp DPX2251 50 Amp DPX1851 90 Amp DPX11551* 200 Amp * This amplifier has no amplifier- mounted 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. 12 APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 13 Power and speaker connections The rear panel contains the power and speaker ports. 56 7 38 10 4 56 7 1 9 8 2 APX2181 power and speaker connections APX4361 power and speaker connections English 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. Fuses 9. Left rear speaker output 10. Right rear speaker output 13 APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 14 English 45 7 45 7 6 3 45 7 3 1 2 DPX1851 power and speaker connections DPX11551 power and speaker connections DPX2251 power and speaker connections 1. Left rear speaker output 5. Ground input 2. Right rear speaker output 6. Fuses 3. Mono speaker output 7. Battery 12V connection 4. Remote turn-on connection 14 APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 15 Applications Mono subwoofer system (APX2181 and APX4361) 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) English • Set crossover frequency to ~80Hz • Fine-tune crossover frequency to suit musical tastes and performances •2. min stereo / 4. 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 •2. min stereo / 4. min mono Note: You may bridge the front, rear or both pairs of channels using the above settings. 15 APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 16 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 instereo • Set crossover mode switch to LP • Set crossover frequency to ~80Hz • Fine-tune as required •2. min stereo / 4. min mono Full-rangespeakers 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...

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