Parasound hca 2003 owners manual
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Extracted text from parasound hca 2003 owners manual (Ocr-read)
Page 1
-2- Placement of Your HCA-2003 Place your HCA-2003 away from heat sources such as air ducts or radiators. Always mount the HCA-2003 horizontally and make sure that your cabinet or shelf can support its weight. It is best to provide a separate shelf for your HCA-2003 rather that stacking it directly above or below your other components. Rack Mounting Your HCA-2003 Your HCA-2003 can be mounted into a standard 19 inch equipment rack and will occupy four rack spaces. If you decide to rack mount your HCA-2003, make sure you select heavy duty mounting bolts and nuts and use nylon washers under the heads of the bolts to avoid scratching the amplifiers front panel. Do not attempt to hold your unit in place yourself while you attach the bolts and nuts. Have someone help support the unit as it is being fastened to the rack rails. Ventilation Requirements for Your HCA-2003 Your Parasound power amplifier is designed to operate with high idling, or bias, current to reduce higher-order harmonic distortion. This bias optimization of all Parasound power amplifiers results in noticeably warm operation even when no signal is present. This is a normal condition. While many other amplifier manufacturers have chosen to bias their amplifiers at a lower level to run cooler, we bias our amplifiers so the output transistors are allowed to operate in a much more linear region. Although the amplifier may run a little warmer than other amplifiers, we feel the resulting sonic improvements are significant and more than justified. To insure safe and reliable operation, it is very important that the amplifier has plenty of ventilation to prevent overheating and automatic shut down from its thermal protection circuitry. Please observe the following ventilation guidelines when installing your Parasound power amplifier in a cabinet or other enclosed area: 1. If you are not using a fan, allow at least six inches on each side and above the amplifier, and do not close off the front with a cabinet door or panel. 2. If you are enclosing the amplifier in an equipment cabinet, use a fan to draw in cool air and exhaust warm air. In either case, two vent holes are required: one for intake and one for exhaust. 3. Do not place the amplifier on carpeting which will obstruct the air flow into the bottom of the amplifier chassis and heatsinks. 4. If you plan on stacking power amplifiers, you must use a fan to circulate the warm air that quickly becomes trapped between them. Minimum Impedance Precautions You may connect loudspeakers with a 4 W or 8 W nominal impedance for normal operation. Your HCA-2003 is capable of driving speakers with occasional impedance dips well below 2 W. However, sustained high power operation into loads of less than 4 W may cause overheating and is not recommended.
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-3- HCA-2003 Front and Rear Panel Drawings Current Overload CH 1CH 2CH 3 Power Operation Stand by HCA-2003 High Current Multi Amplifier LUCASFILM LUCASFILM Power Switch Standby/Operation LEDsCurrent Overload LEDsRack Mount Holes Carry Handle Figure #2 HCA-2003 Front Panel Figure #1 HCA-2003 Rear Panel HCA - 2003High Current Multi-Amplifier Parasound Products, Inc San Francisco, CA U.S.A. Power Consumption: 1320 W CAUTIONRISK OF ELECTRIC SHOCK DO NOT OPEN Fuse 15 A Power AC 120V 60Hz Input Channel 1 Main Fuse AC Cord Connector Carry Handle Input Channel 2 Input Channel 3 Channel 1 Channel 2 Channel 3 Input Connectors and Level Controls Speaker Connectors THX Level THX Level THX Level LUCASFILM Manufactured under license from LucasArts Entertainment Company. U.S. and Foreign Patents pending. Lucasfilm THX Audioand Home THX Symbols are Trademarks of LucasArts Entertainment CompanyLucasfilm is a Trademark of Lucasfilm Ltd. CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOTREMOVE COVER. NO USER SERVICEABLEPARTS INSIDE. REFER SERVICING TOQUALIFIED SERVICE PERSONNEL. WARNING: TO PREVENT FIRE OR SHOCK HAZARD.DO NOT EXPOSE THIS UNIT TO RAINOR MOISTURE.