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Owner’s manual
EQS746
7-BAND STEREO
EQUALIZER/CROSSOVER
EQS746 1
EQS746_OwnersManual.pmd 1 2005-12-02, 16:13
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English Thank you for purchasing this Clarion product. • Please read this owner’s manual in its entirety before operating this equipment. • After reading this manual, keep it handy, such as in your glove compartment. • Save your sales receipt. The warranty at the end of this manual and your sales receipt are essential for warranty service. FCC Approval This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limi
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Contents 1. FEATURES ............................................................................................................. 4 2. PRECAUTIONS ...................................................................................................... 5 Installation............................................................................................................... 5 3. CONTROLS ............................................................................................................
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English 1. FEATURES The Clarion EQS746 is a 7-band stereo equalizer/crossover specifically created for the mobile environment. The EQS746 provides powerful features in a compact size: • Seven equalization bands (50Hz, 125Hz, 315Hz, 2.2KHz, 6kHz, and 16 kHz), each frequency adjustable from -12 to +12dB (-15 to +15dB for subwoofer frequencies) • Subwoofer output uses a built-in 18dB per octave electronic crossover fixed at 60Hz or 90Hz. • Three stereo RCA outputs to drive front, rear, and subwoofe
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2. PRECAUTIONS • Do not operate this product in ways other than those described in this manual. • Do not disassemble or modify this unit. • Do not pour liquid or poke foreign objects into the unit. Water and humidity may damage internal circuitry. • If the unit becomes wet, turn off all power and ask your authorized Clarion dealer to clean or service the unit. Failure to observe these precautions may damage your car, the monitor, or the video source, and may void the warranty. Installation Insta
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English 3. CONTROLS AUX (auxiliary) switch: Press to select auxiliary or main inputs Subwoofer volume Equalizer gain controls To adjust gain, rotate control to desired setting Master volume Fader control: Use to balance sound between front and rear speakers Front panel controls Front out Main in Sub out L R L R L R L R L R Rear out Aux in Rear panel connections Low-pass frequency switch (60/90Hz) AUX gain control: Gain adjustment for left and right auxiliary input To
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4. OPERATIONS Setting system volume 1. Turn the master volume and subwoofer level controls to their minimum settings. 2. Turn the source unit on and increase the volume until you hear distortion. 3. Reduce the volume to just below the distortion point (approximately 80% of full volume). This is the maximum usable musical signal for the source unit. Turning the volume beyond this point increases noise and distortion without increasing the musical signal. Note Once you set the source unit volume,
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English Setting the low-pass frequency Set the low pass frequency switch on the top of the EQS746 to either 60Hz or 90Hz depending on the subwoofer and subwoofer amplifier requirements. Connecting an MP3 player or video unit 1. Plug the MP3 player or video unit into the auxiliary RCA input on the back of the EQS764 unit. 2. Make sure the auxiliary button on the front of the unit is out, ready to receive input from the main RCA input (not the auxiliary RCA input). 3. Turn the EQS764 master volume
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5. INSTALLATION AND WIRING Read these instructions and the following precautions carefully. What is included in the box In addition to this manual, the box contains: • EQS746 7-band graphic equalizer • 2 mounting brackets • 8 Phillips-head screws Before starting Mounting precautions The EQS746 can be mounted next to the source unit or under the dash using the mounting brackets. The front panel controls should be easily accessible from the driver’s seat. In addition: • This unit requires addition
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English Tools and additional components You will need: • A Phillips-head screwdriver when mounting the unit in the vehicle • A small flat-head screwdriver to adjust the AUX gain controls if you connect an MP3 player or video source • High-quality RCA input and output cables 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. Mounting diagram 10 EQS74
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Wiring diagram Auxiliary source Source unit POWER EJECT DISC AV1 AV2 PLAY/PAUSE STOP VIDEO L AUDIO R CONTROLS NEXT SOURCE PREVIOUS MENU ENTER Remote turn-on Chassis ground (bare metal) Front out Main in Sub out L R L R L R L R L R Rear out Aux in Front amp/rear amp Sub amp EQS746 11 EQS746_OwnersManual.pmd 11 2005-12-02, 16:13 English
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English 6. Troubleshooting The unit does not work; no lights The power wires may not be connected. Check the power and ground wiring, then retest. Sound is distorted • The source unit volume may be set too high. Reduce the source unit volume. • Equalizer gain controls are set too high. Turn the equalizer controls to the center position and listen for distortion again. If the problem still occurs, see your autho- rized Clarion dealer. • Speakers may be damaged. Consult your authorized Clarion de
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7. Glossary Crossover: A device that limits the range of frequencies sent to a speaker or amplifier. Equalization: the process of boosting or cutting sound signal frequencies to improve the quality of the sound. The term comes from the filters used to add back high frequencies at the receiving end of analog transmissions over wires. Equalization band: the frequency range impacted by a specific filter. dB: decibel, a measurement of the relative difference in power or intensity between two acousti
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English 8. Specifications Note The technical data and the design of the equipment may change without prior notice for the sake of technical improvements. Graphic center frequencies: 50Hz, 125Hz, 315Hz, 750Hz, 2.2Hz, 6kHz, 16kHz Boost/cut: 12dB S/N ratio: 100dB Frequency response: 10Hz-50kHz +/-1dB Maximum output voltage: 7V THD: 0.005% Input sensitivity: 50mV - 3V Head room: 20dB Input impedance: 20kOhms Output impedance: 2kOhms Stereo separation: 82dB/1kHz Operating voltage: 11V-15V negative gr
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9. LIMITED WARRANTY INFORMATION For USA and Canada only Except as noted, Clarion products purchased from an authorized Clarion dealer are warranted against all defects in materials and workmanship for a period of one (1) year from date of original purchase. The following Clarion products noted below ** are warranted against all defects in materials and workmanship for a two (2) year period from the date of original purchase when purchased from AND installed by an authorized Clarion dealer. ** DR
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Clarion Corporation of America All Rights Reserved. Copyright © 2006: Clarion Corp. of America Printed in China 16 EQS746 EQS746_OwnersManual.pmd 16 2005-12-02, 16:13
