Clarion apx201-2 User Manual

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Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Input Connections and Audio Controls  . . . . . . . . . . . . . . 3
Connections for Power and Speakers  . . . . . . . . . . . . . . . 5
Applications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wiring Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting the Gain  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setting the Crossover  . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setting the Bass Boost  . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Final System Checks  . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Product Specs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Warranty Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

The Clarion APX201.2 and APX401.2 are full-featured two-channel amplifiers
incorporating the following features:

• Full frequency response with low distortion and exceptional signal to noise    

performance.

• Advanced circuitry design that features bridgeable and mixed mode operation 

for use in various audio systems, including those with satellite speakers 
and/or subwoofers.

• Variable high-pass/low-pass electronic crossover with a 12dB per octave   

slope and full adjustable range (from 55Hz to 5.5kHz) to aid in any audio 
system configuration.

• Variable bass boost circuit to reinforce low frequency signals that may be 

lost due to subwoofer box design. 

• Adjustable input level controls with ground loop isolation, allowing a wide 

range of input signals.

• Remote turn-on with “soft start” muting to prevent turn on “thump”.
• Pulse-width modulated (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 external automotive type fuse
• Aluminum heat sink for efficient heat dissipation.
• Low profile, compact size for space limited installations.

ABOUT THE MANUAL AND WARRANTY
To start enjoying your new Clarion two-channel amplifier, please read the
instructions stated in this manual.  Keep all instructions for future reference.
Save your original sales receipt as proof of purchase. 

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