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Introduction

Congratulations on your purchase of this precision audio component and thank you for your selection of
Parasound.  Your HCA-1500A was designed by renowned circuit designer John Curl to meet or surpass
the stringent standards required by Lucasfilm for use in THX Home Cinema systems.  Each precision
component within your HCA-1500A is carefully 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.

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.

The HCA-1500A occupies three rack spaces (5 1/4") 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. Call Middle Atlantic Products at
(201) 839-1011 to obtain information about a wide variety of rack mounting hardware. When mounting
equipment into an equipment rack, 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-1500A

Page 1: ...5 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 H C A 1 5 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 U C A S F I L M L U C A S F I L M Power Power Current Overload Current Overload L R AC Line AC Line Normal Normal Standby Standby L U C A S F I L M R ...

Page 2: ...e 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 the grounding type plug 12 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them 13 Lightning For added protection for this product during a li...

Page 3: ...ECTRIC SHOCK DO NOT OPEN AC 120 V 60 Hz Power 6 3 A Fuse WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE Mono Bridge Stereo THX Level THX Level Speakers Manufactured under license from LucasArts Entertainment Company U S and Foreign Patents pending Lucasfilm THX Audio and Home THX Symbols are Trademarks of LucasArts Entertainment Company Lucasfilm is a Trademark...

Page 4: ...t 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 The HCA 1500A occupies three rack spaces 5 1 4 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 f...

Page 5: ...re 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 important to observe correct polarity When you connect speakers to your amplifier you will notice that one side the two conductor speaker wire will have some sort of mark either printing a raised ridge on the i...

Page 6: ...or processor 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 withstand the current draw of the amplifier DC Trigger Connection This connector provides a way to trigger your amplifier on with an external DC voltage source ranging from 9 Vdc to 12 Vdc With th...

Page 7: ... never illuminate Level 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 signal path However if your preamplifier has very high gain and its volume control cannot track properly for left right channel balance near its minimum position it may be necessary ...

Page 8: ...rized 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 Authorization RA number You will be asked to repack the unit in its original packaging plus an additional outer box for protection during transit The Return Authorization number must be clearly marked on the ou...

Page 9: ...e 130 V µsecond 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 Crosstalk 80 dB at 1 kHz 60 dB at 20 kHz Input Impedance 33 kΩ Input Sensitivity 1 V for 28 28 V THX Reference Level 1 2 V for full output S N Ratio 110 dB input shorted IHF A weighted Damping Fac...

Page 10: ...pairs Handpicked complementary MOSFET transistors in high voltage driver stage 8 complementary pairs of 15 ampere 50 MHz output transistors Output transistors direct coupled to speakers without LRC networks DC servo direct coupled audio circuits with 0 8 Hz rolloff High bias Class A AB operation Gold plated metal structure RCA input jacks Gold plated looping output jacks Multiple temperature senso...

Page 11: ...5 397 0144 affordable audio for the critical listener The Parasound HCA 1500A is Manufactured under license from Lucasarts Entertainment Company U S and foreign patents pending Lucasfilm Audio and Home THX are trademarks of Lucasarts Entertainment Company Lucasfilm is a trademark of Lucasfilm Ltd L U C A S F I L M R ...

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