Clarion APX401.2, APX201.2 installation manual Final System Checks, Troubleshooting

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Owner’s Manual

FINAL SYSTEM CHECKS

1.Start the engine and turn on the source unit. After a two-second delay, slow- ly 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 also refer to Troubleshooting. Depending on your system design, the levels may become quite loud even at low Volume Control settings. Until you get an “audio feel” of the system’s power, use care when adjusting controls.

2.Turn the Balance Controls to their extreme positions and listen to the results. Audio imaging should match control settings (audio from the left speaker when balance is left).

3.Increase the volume and verify that the amplifier reproduces audio (at full fre- quencies) 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

Problem

No Audio.

Solution

Low or no remote turn-on voltage. Check remote connections at amplifier and source unit.

Blown amplifier fuse. Replace with new fast-blow fuse (same rating).

Power wires not connected. Check battery and ground wiring at amplifier; also check 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 amplifier, measure coil impedance.

Problem

Audio cycles on and off.

Solution

Thermal protection circuits are shutting amplifier off. Check location for adequate ventilation; consult an authorized Clarion Audio Dealer.

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Contents E R a T IO N Installation N U a L About the Manual and Warranty Table of ContentsIntroduction Input Connections and Audio Controls DescriptionHigh-pass/Low-pass Filter Controls Connections for Power and Speakers Applications Channel Full-Range, Satellite, or Subwoofer Stereo System Mixed-Mode Satellite and Subwoofer System Mounting Precautions InstallationWiring Precautions Channel Power System Amplifier Electrical connections for the APX201.2 or the APX401.2 Setting the Crossover Setting the GainSetting the Bass Boost Final System Checks TroubleshootingDistorted audio APX201.2 APX401.2 Product SpecsWarranty Information

APX201.2, APX401.2 specifications

The Clarion APX401.2 and APX201.2 are high-performance amplifiers designed to enhance the audio experience in vehicles, providing powerful sound and impressive clarity. These models boast advanced technologies and features that make them a popular choice among car audio enthusiasts.

One of the standout features of both the APX401.2 and the APX201.2 is their Class D amplifier topology. This technology allows for efficient power consumption, reduced heat generation, and a compact form factor, making these amplifiers ideal for modern vehicles with limited space. The Class D design provides high output power, ensuring that users can enjoy their music at high volumes without distortion.

The APX401.2 is a four-channel amplifier capable of delivering a maximum power output of 400 watts. This model is suitable for powering a full-range speaker system, allowing users to drive multiple speakers while maintaining sound quality. The built-in low-pass filter and high-pass filter options enable customization of sound frequencies, ensuring that the audio output is tailored to the listener's preferences and the speakers' capabilities.

On the other hand, the APX201.2 is a two-channel amplifier that provides up to 200 watts of maximum power. This model is perfect for those who want to power a pair of speakers or a subwoofer with precision and clarity. The APX201.2 also includes adjustable gain control, allowing users to optimize the input signal to achieve the best possible sound.

Both amplifiers feature a reinforced aluminum chassis that enhances durability and protects against vibrations, which are common in a mobile environment. The aesthetic design, characterized by a sleek and modern finish, ensures that these amplifiers can blend seamlessly with most car interiors.

In terms of connectivity, the APX401.2 and APX201.2 come equipped with RCA inputs, allowing for easy integration with aftermarket head units. Moreover, the amplifiers feature a compact design, making installation straightforward and accommodating in various vehicle types.

Finally, these amplifiers are engineered with a range of safety features, including short circuit protection, thermal protection, and overload protection. These safeguards ensure reliable operation, giving users peace of mind while enjoying their audio experience.

In summary, the Clarion APX401.2 and APX201.2 amplifiers offer high-quality sound output, advanced features, and a durable design, making them exceptional choices for anyone looking to elevate their vehicle's audio system. Whether powering multiple speakers or a dedicated subwoofer, these amplifiers deliver performance and reliability, ensuring an enjoyable listening experience on the road.
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