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THANK YOU!
Congratulations and Thank You for Choosing Parasound
Your new Parasound Halo Series A 52 power amplifier presents the latest advancements in
amplifier technology. The A 52 is built to the strict quality and performance standards set by
Parasound. Were proud to offer you this exceptional audio component that will bring you many
years of enjoyment and dependability.
Here at Parasound, we design our products to perform at a higher level of flexibility and sonic
performance than you may have expected. We encourage you to read this entire manual to
learn all the features and capabilities of your new Halo Series A 52 Amplifier.
If youre eager to get up and running right away, simply follow the basic step-by-step instruc-
tions to connect and operate the A 52. If you want to learn about some of the technical and
design aspects of your A 52, refer to the Technically Speaking and Parasound A 52 Design
Overview sections in the back of the manual. If you run into difficulties, the Troubleshooting
Guide should help you quickly remedy the problem.
We appreciate you taking the time to read these instructions and thank you for selecting
Parasound for your listening pleasure.
The Parasound Staff
Unpacking Your A 52
Unpack your A 52 from the shipping carton, remove the AC power cord and the control wire
with a 2.5 mm sub-mini plug on each end. (This is the trigger connection wire). While you are
unpacking your new amplifier, inspect it thoroughly for possible shipping damage. If you see any,
contact your Parasound dealer right away. Be sure to save and store both the inner and outer
cartons and the packing inserts for possible future transport. To save room for storage, you can
cut the seams on the bottom of the cartons and flatten them.
Keeping Records for Future Reference
Record the serial number located on the bottom of your A 52 in the space below. Also note
your Parasound Dealers name and phone number. We recommend that you keep your purchase
receipt with this manual and store them both in a safe place. You may need to refer to this
information sometime in the future.
Parasound A 52 Amplifier Serial #: __________________________________________________
Parasound Dealer: ________________________________________________________________
Phone Number: __________________________________________________________________
Date of Purchase: ________________________________________________________________
YOU SHOULD KNOW
There is no Parasound warranty for this unit if it was not purchased from an Authorized
Parasound Dealer. Investigate any warranty claims made by unauthorized dealers very
carefully as you will need to depend entirely upon the dealer, and NOT upon Parasound.
Unauthorized dealers may lack the capability to arrange repairs of Parasound equipment.
Authorized Parasound Dealers are listed at
www.parasound.com or you can call
415-397-7100 between 8:30 am and 4:30 pm Pacific time.
A missing or tampered serial number could indicate that this unit was stolen or sold
by an unauthorized dealer. If this unit is missing its serial number, you should return
it to your dealer immediately for a full refund.
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TABLE OF CONTENTS
A 52 Amplifier
PLACEMENT GUIDELINES FOR YOUR A 52 2
CONNECTING A SURROUND CONTROLLER
TO THE BALANCED INPUTS ON YOUR A 52 3
CONNECTING A SURROUND CONTROLLER
TO THE UNBALANCED INPUTS ON YOUR A 52 4
CONNECTING YOUR SPEAKERS TO THE A 52 5
MANUAL AND AUTOMATIC TURN ON-OFF OPTIONS 6
CONNECTING AN EXTERNAL DC SOURCE FOR AUTOMATIC ON-OFF 7
CONNECTING THE A 52 TO TRIGGER ANOTHER COMPONENT 8
UNDERSTANDING THE INDICATORS ON THE A 52 9
CONNECTING THE AC POWER CORD 10
MAINTAINING YOUR A 52 11
TROUBLESHOOTING GUIDE 12
SERVICING YOUR A 52 13
TECHNICALLY SPEAKING 14
PARASOUND A 52 DESIGN OVERVIEW 16
PARASOUND A 52 SPECIFICATIONS 18
