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Introduction

Congratulations on your purchase of this precision audio component and thank you for your selection of
Parasound.  Each part within your new Parasound power amplifier has been painstakingly selected for
optimum sound quality on even the most challenging music and film soundtracks. Parasound amplifiers
have greater operational flexibility and power than most other amplifiers you may have used, so please
take a few moments now to read these instructions thoroughly so you may fully understand the various
capabilities of your new Parasound power amplifier.

The Parasound HCA-1000A and HCA-750A are virtually identical in operation and very similar in sonic
performance.  The main difference between these amplifiers is that the HCA-1000A has been certified
by Lucasfilm for use in THX Home Cinemas, while the HCA-750A has somewhat less power than
required to meet THX standards.

Unpacking Your Amplifier

Carefully unpack your amplifier and remove all the enclosed accessories including the remote control
and detachable AC cord.  Be sure to inspect the unit for any possible shipping damage.  If you see any,
contact your Parasound Dealer immediately. Be sure to save both cartons and the packing inserts for
future transport and always pack the inner carton into a protective outer carton before shipment.

Before you proceed, find the serial number located on the rear panel of your unit.  Record it here for
future reference.  ____________________

Installing and Rack Mounting Your Amplifier

Place your amplifier away from heat sources such as air ducts or radiators.  Always mount the amplifier
horizontally and make sure that your cabinet or shelf can support its weight.  It is best to provide a
separate shelf for your amplifier rather that stacking it directly above or below your other components.

Both the HCA-1000A and HCA-750A occupy two rack spaces (3 1/2") into a standard 19 inch
equipment rack.  Be sure to use heavy duty mounting bolts to and nylon shoulder washers on both sides
of the faceplate to avoid scratching the amplifier’s front panel and prevent ground loops.  A wide variety
of rack mounting hardware is available from Middle Atlantic Products whom you can call at
(201) 839-1011. When rack mounting equipment, it is always a good idea to have someone help support
the unit while you bolt it to the rack rails.

Ventilation Requirements for Your Amplifier

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 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 within 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 that will
obstruct the air flow into the bottom of the amplifier chassis and heatsinks.  4)  Avoid stacking
components.  If you do, you must use a fan to circulate the warm air that quickly becomes trapped
between them.

Summary of Contents for HCA-1000A

Page 1: ...r e n t P o w e r A m p l i f i e r H C A 1 0 0 0 A H i g h C u r r e n t P o w e r A m p l i f i e r L R AC Line Normal Standby Current Overload Current Overload H C A 7 5 0 A H i g h C u r r e n t P...

Page 2: ...This plug will only fit into a grounding power outlet If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of...

Page 3: ...igure 1 HCA 1000A Front and Rear Panel Drawings HCA 750A High Current Power Amplifier Parasound Products Inc San Francisco CA U S A CAUTION TO PREVENT ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVIC...

Page 4: ...as air ducts or radiators Always mount the amplifier horizontally and make sure that your cabinet or shelf can support its weight It is best to provide a separate shelf for your amplifier rather that...

Page 5: ...ng the wire twist all its strands tightly to prevent strays that could cause a short circuit You may want to tin the stripped wire with solder to prevent it from fraying and oxidizing Polarity It is i...

Page 6: ...essor because the amplifier s current draw exceeds the ratings of most preamplifier s power switches and power cords If you use an external AC line conditioner or surge suppressor make sure it can wit...

Page 7: ...Controls Each channel has its own rear mounted set and forget input level control Your amplifier sounds best with these level controls set to maximum where they are effectively out of the audio signa...

Page 8: ...ized Parasound Warranty Center for inspection and possible servicing call for the location of a warranty center near you If you choose to send it to Parasound contact us to obtain a Return Authorizati...

Page 9: ...second Frequency Response 5 Hz 100 kHz 0 3 dB at 1 watt Total Harmonic Distortion 0 03 at full power 0 01 typical levels IM Distortion 0 03 TIM Unmeasureable Dynamic Headroom 1 5 dB Interchannel Cros...

Page 10: ...Slew Rate 130 V second Frequency Response 5 Hz 100 kHz 0 3 dB at 1 watt Total Harmonic Distortion 0 06 at full power 0 03 typical levels IM Distortion 0 04 TIM Unmeasureable Dynamic Headroom 1 5 dB In...

Page 11: ...cuit boards double sided for precision Custom designed audiophile grade AC power cord Multiple Protection Circuits Special Features for the Parasound HCA 750A Independent power supplies for each chann...

Page 12: ...12 1996 Parasound Products Inc Parasound Products Inc 950 Battery Street San Francisco CA 94111 415 397 7100 FAX 415 397 0144 affordable audio for the critical listener...

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