Page 2 - Channel Power System Amplifier; TABLE OF CONTENTS; Save your original sales receipt as proof of purchase.
2 Channel Power System Amplifier 2 TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Input Connections and Audio Controls . . . . . . . . . . . . . . 3Connections for ...
Page 3 - DESCRIPTION
Owner’s Manual 3 Owner’s Manual DESCRIPTION The APX201.2 and APX401.2 use an unregulated MOSFET power supply forsuperior control of output wattage. A toroid-coil transformer yields maximumpower transfer with minimal heat loss. Extensive attention to circuit designkeeps AM RFI at low levels, so you w...
Page 4 - Gain Control; - This allows you to set the nominal operating level of the; Bass Boost Control; - The crossover frequency is fully; Crossover Frequency Multiplier Switch; - This switch is equipped with a 12dB per octave; Input Mode Switch; - This switch allows you to set the input mode. Stereo; Speaker Level Inputs; - These provide connections for a high-level stereo
2 Channel Power System Amplifier 4 • Gain Control - This allows you to set the nominal operating level of the amplifier. The amplifier’s range, 250mV to 2.5V for RCA inputs or 500mV to5V for speaker level inputs, can accommodate input levels from virtually anybrand of source unit. • Bass Boost Contr...
Page 5 - Owner’s Manual; CONNECTIONS FOR POWER AND SPEAKERS
Owner’s Manual 5 CONNECTIONS FOR POWER AND SPEAKERS The rear panel of the APX201.2 and APX401.2 contains power and speakerconnections as shown below. 1. Left Speaker Output2. Right Speaker Output3. Remote Turn-on Input4. Ground Input 5. Battery +12V Input6. 25 Amp Fuse (APX201.2) 40 Amp Fuse (APX401...
Page 6 - APPLICATIONS; Figure 3; Set X-Over Mode to LP and adjust
2 Channel Power System Amplifier 6 APPLICATIONS The Clarion APX201.2 and APX401.2 2-channel car audio amplifiers can beused in a variety of system applications. Here are some examples to help planyour own installation. Figure 3 - In this application the amplifier is bridged for mono operation to dri...
Page 7 - Figure 4; In this application, the amplifier is used in stereo and drives two
Owner’s Manual 7 Figure 4 - In this application, the amplifier is used in stereo and drives two full-range (or satellite or subwoofer) speakers. NOTE: A passive crossovermust be used with satellite speakers. 2-Channel Full-Range, Satellite, or Subwoofer Stereo System Set X-Over Mode as shown Set X-O...
Page 8 - Mixed-Mode Satellite and Subwoofer System; Set X-Over Mode to OFF; The amplifier can be configured for a mixed-mode operation. The
2 Channel Power System Amplifier 8 Mixed-Mode Satellite and Subwoofer System FREQ (hz) 80 100 125 150 200 L (mH) 8.0 6.4 5.1 4.2 3.2 C (uF) 497 398 Set X-Over Mode to OFF NOTE: Chart values based on 4 ohm speakers. Figure 5 - The amplifier can be configured for a mixed-mode operation. The table prov...
Page 9 - INSTALLATION
Owner’s Manual 9 INSTALLATION This section lists Mounting and Wiring Precautions prior to installing aClarion APX201.2 or APX401.2. These safeguards provide enough detail tocomplete the installation successfully. If you do not have the necessaryskills, do not attempt to install the amplifier yoursel...
Page 10 - Never ground the speakers to the vehicle chassis or body.
2 Channel Power System Amplifier 10 4. A secure, clean ground connection is critical to the performance of yourClarion amplifier. Use the shortest ground wire possible and securely connectto the car chassis to minimize resistance and avoid noise problems. Besure toclean off any paint, prior to makin...
Page 11 - Electrical connections for the APX201.2 or the APX401.2
Owner’s Manual 11 Figure 6. - Electrical connections for the APX201.2 or the APX401.2 apx201.qxd 12/5/01 12:57 PM Page 11
Page 12 - SETTING THE GAIN
2 Channel Power System Amplifier 12 SETTING THE GAIN After completing the installation, follow these steps to set the Gain Controland then perform the Final System Checks. 1. Turn the Gain Control all the way counter-clockwise. 2. Turn the vehicle’s Ignition Switch to the ON position. Then turn theO...
Page 13 - Audio cycles on and off.
Owner’s Manual 13 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 toTroubleshooting. Dependin...
Page 14 - Whining or ticking noise in the audio with engine on.
2 Channel Power System Amplifier 14 Problem Distorted audio. Solution Gain is not set properly, or damaged speaker cones. Review Setting Gain;inspect each speaker cone for signs of damage (i.e. frozen cone, burningsmell, etc.) Problem Audio lacks punch. Solution Speakers wired incorrectly, which cau...
Page 15 - PRODUCT SPECS
Owner’s Manual 15 Frequency ResponseSignal Noise RatioTHDInput Sensitivity Low LevelInput Sensitivity Speaker LevelMax. Power OutputCont. Power Output2-Ohm Stereo OutputBridged PowerDimensionsCurrent Consumption at output@ max power 20Hz ~ 20kHz >100db .05% all channels driven 250mV ~ 2.5 V 500mV...
Page 16 - WARRANTY INFORMATION
Clarion Corporation of America 661 W. Redondo Beach Blvd.Gardena, CA 90247-4201 U.S.A. APX201.2.401.2 Rev. 1(11/01) WARRANTY INFORMATION This product is warranted against all defects in material workmanship for a period of one year from the date oforiginal purchase. Clarion ProAudio products except ...