Congratulations on your purchase of the Adcom GTP-870HD
You have made a wise choice that will reward you with exceptionally accurate musical sound reproduction for
years to come. To realize the full potential of your new preamp/processor, please read these operating and
installation instructions thoroughly before attempting to make any connections to it.
The GTP-870HD is not only designed to reproduce the highest quality sound and picture but also to deliver
the greatest possible value. It is our engineers’ passion for perfection that has enabled our components to be
judged the equivalent of others costing two, three, or even ﬁve times as much. Our engineering team consis
tently strives to develop and design products that will exceed your expectations. Our goal at Adcom is to let
more consumers hear high-end quality sound and see high-end video without paying high-end prices.
All Adcom components are the result of a long-standing dedication to innovation, quality, simplicity, and
value. Adcom: We have the power — and now, so do you!
This symbol is intended to alert the user
to the presence of uninsulated dangerous
voltage within the product’s enclosure
that may be of sufﬁcient magnitude to
constitute risk of ﬁre or electric shock.
This symbol is intended to alert the user to
the presence of important operating and
maintenance instructions in the literature
accompanying this product.
Do not place this unit on an unstable
cart, stand, tripod, bracket, or table.
The unit may fall, causing serious in
jury to a child or adult, and serious
damage to the unit. Use only with a
cart, stand, tripod, bracket, or table
recommended by the manufacturer
or sold with the unit. Any mounting of
the device should follow the manufac
turer’s instructions, and should use a
mounting accessory recommended by
Published by Adcom
Copyright © 2006 Adcom, LLC
All rights reserved
Adcom and the Adcom logo are registered trademarks of
This unit is manufactured under license from Dolby Labora
tories Licensing Corporation. It is additionally licensed under
one or more of the following patents: U.S. number 3,959,GTP-
880, Canadian numbers 1,004,603 and 1,037,877.
Dolby® Pro Logic®, Dolby ProLogic II®, Dolby Digital EX®, and
Dolby Digital® are registered trademarks of Dolby Laborato
ries Licensing Corporation.
Manufactured under license from Digital Theater Systems, Inc.
US Patent Number 5,451,942 and other world-wide patents is
sued and pending. “DTS®,” “dts®,” “DTS Digital Surround®,”
“DTS-ES®,” “DTS NEO:6®” are trademarks of Digital Theater
Systems, Inc. Copyright 2003 Digital Theater Systems, Inc. All
HDMI, the HDMI logo and High-Deﬁnition Multimedia Interface are
trademarks or registered trademarks of HDMI Licensing LLC.
No part of this manual may be reproduced or electronically trans
mitted without the express written consent of Adcom, LLC.