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The HTS5000 Surround Audio Processor provides a
theater-sound environment in the home. This Home
Theater Sound (HTS) system decodes Dolby1 stereo
sound encoded in video discs, video tape, and broad-
cast television. The HTS5000 provides up to six chan-
nels of audio output: left, center, right, two surround
channels, and a subwoofer. Acra-Vector' decoder cir-
cuitry replicates the directional accuracy of the finest
theater sound equipment. True digltal time delays pro-
'de the same performance,free of distortionandnoise,
s
inthe theater. The Acoustic Space Generatorcreates
the same immerslon insound as in the theater, but us-
ing a minimum number of speakers. All these features
help to re-createthe sound field of an original theater
showing. The HTS5000can also produce simulatedsur-
round sound from ordinary stereo, and even from mono
sources.
Three models of the HTS5000 are presently
available: the HTS5000, for 120 Vac,
60
Hz operation;
the HTS5000E, for 220.240 Vac,
5016Q
Hz operation; and
the
HTS5000J,
for
100
Vac,
50160
Hz
operation. All three
models are described inthis document.
A basic HTS Surround Sound installation employs
four loudspeakers and two stereo amplifiers; a com-
plete system uses six loudspeakers and three stereo
amplifiers to reproduce the theater experience. The
systemoperates as follows: ExclusiveAcra-Vector
clr-
cuits enhance the directional accuracy of the repro-
duced sound field. Inthe front, this creates
a
spacious
stereo panorama with realistic "motion" effects from
moving sources. In the basic system, dialogue
originates from a phantomcenter channel. However, to
keep the acoustic image properly located regardless of
where the listener sits in the room, the addition of a
center front loudspeaker is recommended.
The surround channel signals are delayed according
toa user.selected digital display setting chosenfor the
particular room environment. Then an Acoustic Space
Generator processes the delayed signal to further
nhancethe perception of spaciousness.
The finishing touch tocompletethe system isanadd-
ed
subwoofer. Becausethe film industry uses very low-
frequency audio as an Integral part of the creation of
mood and place. usina a subwoofer relnforces the
theater illusion and intensifies the versimilitude of the
performance. To conveniently add a subwoofer, the
HTS5000 has a subwoofer output containing only low-
frequencyinformation(below80 Hz). The subwooferwill
smoothly extend the response of typical bookshelf or
satellite speakers, or It can be used to augment the
bass output of larger speakers. (The left, center, and
'
right outputs are full-frequency-range and also contain
this low-frequencyinformation.)
The HTSWfront-panel controls and displays in-
clude push-button operating mode selectors: Dolby
Surround, synthesized-surroundstereo or mono, and, by
means of a defeat button, pure stereo or mono. There is
a
alsopush-buttonchoiceof the audio source from elther
Left and Right inputs or Tape Monitor Return inputs.
Rotary knobs on the front adjust the following: input
level, with a five-LED display; input balance, with an
LED for visual determination of correct balance; digital
delaytime tobest suit the particular listeningroom;and
volume andsurround levels.An overriding wired remote
control iets the listener adjust surround and overall
volume levels from the listening position. The remote
also permits muting of the audio outputs. A four-
channel graphic display provides visual demonstration
of the surround characteristics of the input signal.
The HTS5000 rear panel includes left and right audio
inputs; outputs for front left and right and surround left
and right channels;
a
separately switched front-center
output jack; and a subwoofer output jack. Tape Monitor
Sendoutputs and Left and Right Return inputs are also
included. These audio input and output jacks are all
phono types. In addition, front- and rear-paneleighth-
inch-diameter phone jacks accommodate the wired
remote control.
The
HTS5000
InstallationlOperator's Manualcontains
specifications, troubleshooting and safetylmain-
,
tenance information.
1
1.
Uanvfacturedunder licensefrom DolbyLaboratoriesLlcenting
Ca-
n
poration. Additionally licensed under one or more
of
the following
'
patents: U.S. numbers 3,632,886, 3,746,792, and 3,959,590; Canada
numbers
1,034,603
and 1,037,877. 'Dolby* and the doub1e-D symbol
are
trademarks of Dolby bboratories Licensing Corporation
'Patent pending.
