Clarion APX400.2M Operating & Installation Manual Download Page 1 | Manualshive

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Summary of Contents for APX400.2M

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Page 2: ...PWM MOSFET power supply with low AM RFI and protection circuits for overheating and speaker shorts 2 ohm load capability to drive a variety of speaker systems Gold plated input output connectors and an extenal automotive type fuse Aluminum heat sink for efficient heat dissipation Low profile compact size for space limited installations ABOUT THE MANUAL AND W ARRANTY To start enjoying your new Clar...

Page 3: ...lifier when overheating and speaker shorts or improper load conditions occur All connections and controls of the APX400 2M are on the end panels and are easy to understand We use gold plated RCA and barrier connectors to ensure the best electrical connection for your system Included is an external automotive type fuse that is easy to replace INPUT CONNECTIONS AND AUDIO CONTROLS The front panel of ...

Page 4: ...Freq Hz Control will produce no effect Crossover Frequency Multiplier Switch When engaged this switch increases the crossover frequency by a factor of 10 Example If the Freq Hz dial is set for 240 Hz pushing in the Multiplier Switch changes the setting to 2400 Hz X Over Mode Switch This switch is equipped with a 12dB per octave electronic filter for precise frequency attenuation with minimal phase...

Page 5: ...ND SPEAKERS The rear panel of the APX400 2M contains power and speaker connections as shown below 3 1 Left Speaker Output 2 Right Speaker Output 3 Remote Turn on Input 4 Ground Input 5 Battery 12V Input 6 25 Amp Fuse Figure 2 ...

Page 6: ...n a variety of system applications Here are some examples to help plan your own installation Bridged Mono Subwoofer System 4 Figure 3 In this application the amplifier is bridged for mono operation to drive a subwoofer Set X Over Mode to LP and adjust FREQ to speaker specifications ...

Page 7: ...shown Set X Over Mode as shown adjust FREQ to speaker specifications Set X Over Mode as shown adjust FREQ to speaker specifications Figure 4 In this application the amplifier is used in stereo and drives two full range or satellite or subwoofer speakers NOTE A passive crossover must be used with satellite speakers ...

Page 8: ...rt values based on 4 ohm speakers Figure 5 The amplifier can be configured for a mixed mode operation The table provides component values to create a 6dB per octave crossover at specified frequencies Use components that have a 5 tolerance and capacitors rated at 100V NOTE Choose the same frequency for both LP and HP crossovers Do not overlap frequencies as this may damage the amplifier ...

Page 9: ...ost efficient cooling mount the amplifier so cool air runs along the length of the fins rather than across them Remember any moving air will dissipate heat 2 Mount the amplifier on a rigid surface Avoid mounting to subwoofer enclosures or areas prone to vibration 3 Prior to drilling make sure proposed mounting holes will not cut into the fuel tank fuel lines or electrical wiring WIRING PRECAUTIONS...

Page 10: ...erious damage to the amplifier 8 Make sure that your vessel s electrical system alternator battery etc is capable of handling the additional load If you are planning a multi amplifier system you may need to add a second battery and possibly upgrade the alternator with a higher output rated model Consult your authorized Clarion dealer for recommendations 9 To avoid noise problems run the amplifier ...

Page 11: ...9 Figure 6 Electrical connections for the APX400 2M ...

Page 12: ...ps 1 Using the X Over Mode Switch select the desired mode LP for Low Pass HP for High Pass and OFF for Full Range 2 Using the Freq Hz Control select the desired frequency If the desired frequency exceeds the range of the Freq Hz Control press the Crossover Frequency Multiplier Switch to increase the value by a multiplier of 10 For example 55Hz x 10 550Hz or 550Hz x 10 5 5kHz SETTING THE BASS BOOST...

Page 13: ...ncies without distortion If you hear distortion check the connections and verify that the Gain Control is set correctly Another possibility is damaged speakers or under powered speakers Once again refer to Troubleshooting for additional help TROUBLESHOOTING 11 Problem No Audio Solution Low or no remote turn on voltage Check remote connections at amplifier and source unit Blown amplifier fuse Repla...

Page 14: ... audio with engine on Solution Amplifier is picking up alternator noise or radiated noise Turn down input gain move audio cables away from power wires Check power and ground connections on amplifier install an in line noise filter on source unit s power wire check alternator and or voltage regulator test for weak battery or add water to battery PRODUCT SPECS APX400 2M Frequency Response Signal Noi...

Page 15: ...NOTES 13 ...

Page 16: ...661 W Redondo Beach Blvd Gardena CA 90247 1 800 GO CLARION www clarion usa com APX400 2M 10 Rev 2 05 00 ...

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