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The HTSWSurround Audio Processor provides a
theater-sound environment in the home. This Home
Theater Sound (HTS) system decodes Dolby1 stereo
sound encoded Invideo 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 clr-
cuitry replicates the directional accuracy of the finest
theater sound equipment. True digital time delays pro-
'de the same performance,freeof distortion andnoise.
s
inthe theater.The Acoustic Space Generator creates
the same Immersioninsound as Inthe 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 producesimulated sur-
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, 50160 Hz operation; and
the HTS5000J, for
100
Vac, 50160
Hz
operation.
All
three
models are describedInthis 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
system operatesasfollows: ExclusiveAcra-Vectorclr-
cuits enhance the directional accuracy of the repro-
duced sound field. Inthe front, this creates a spaclous
stereo panorama with realistic "motion" effects from
moving sources. In the basic system, dialogue
originates from a phantomcenter channel. However,to
keepthe acoustic image properly located regardless of
where the listener sits in the room, the addition of a
center front loudspeaker isrecommended.
The surround channel signals are delayed according
toa user-selecteddigitaldisplaysetting chosen for the
particular room envlronrnent. Then an Acoustic Space
Generator processes the delayed slgnal to further
nhancethe perceptionof spaciousness.
The finishing touchtocompletethe systemisanadd-
edsubwoofer. Becausethe film industry uses very low-
frequency audio as an Integral part of the creation
of
mood and place. uslna a subwoofer reinforces the
theater illusion and lrrt~nslfiesthe 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-rangeand also contain
'
this low-frequencyinformatlon.)
:
The HTS5000 front-panel controls and displays ln-
clude push-button operating mode selectors: Dolby
Surround, synthesized-surroundstereo or mono, and, by
means of adefeat button, pure stereo or mono. There Is
'
alsopush-buttonchokeof the audio sourcefromeither
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
delaytimeto bestsuittheparticularlisteningroom;and
volume andsurround levels. An overriding wiredremote
control lets 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; anda subwooferoutput 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
remotecontrol.
The HTS5000lnstallationlOperator's Manualcontalns
,
specifications, troubleshooting and safetylmain-
tenance Information.
7.
Manufacturedunder llcennr fromDolby Laboratories Llcenslnp
Cor
poratlon. 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
1,004,803
and
1,037,Bn.
'Dolby* and the double-D symbol
are
trademarks
of
Dolby Laboratories Llcenslnp Corporation
'Patent
pendln~.
