Yamaha ampli99 schematic

YAMAHA
Digital Home Theater

AMPLIFIERS
RECEIVERS

DVD PLAYER / TUNER / SUBWOOFERS / SPEAKER SYSTEMS

Yamaha invites
you into a new world
of entertainment.

Many people watch movies at home with a TV
and VCR or other video player, but are
frustrated by the dull and lifeless sound. Let’s
face it: when you’re used to hearing the dynamic
sound offered in today’s movie theaters, the
sound from your TV speakers pales by
comparison. Even outputting the sound from an
ordinary audio system (amp and two speakers)
improves little but the volume. If this is your
situation, Yamaha has good news: CINEMA DSP.
Featured in Yamaha Digital Home Theater
Amplifiers and Receivers, this amazing
technolog y makes the sound from movies (and
music, too) much more thrillingly realistic than
anything you’ve ever heard from a home system.
Discover the full possibilities of home cinema
entertainment – with Yamaha CINEMA DSP
components.

2

3

Yamaha’s Total Commitment

to Excellence Creates the Ultimate in

Home Entertainment.

Digital Sound Field Processing (DSP) is a

Yamaha innovation that has opened a new chapter

in the history of audio. Instead of having to go to a movie

theater or concert hall to experience awesome,

all-enveloping acoustics, you can now stay home and hear the

same or even better sound. Our latest generation of amplifiers with

CINEMA DSP technology offer capabilities and quality that will tr uly astound you.

While you’re watching a movie, CINEMA DSP gives you precisely the aural

experience that the sound director intended you to have.

The sound is an actual presence, intensifying the

suspense, action or drama being portrayed on the screen.

When you’re enjoying a music video or audio

program, you have the uncanny sensation of actually

sitting in a concert hall, jazz club, and so on.

This is an entirely new listening experience–one

that only Yamaha can bring you.

Left Surround
Sound Field

Left Surround
Sound Source

Presence Sound Field

Effect

Dialogue

Sound Field Imaging of Tri-Field CINEMA DSP

Music

Right Surround
Sound Field

Right Surround
Sound Source

Yamaha technology has been granted a patent in the U.S. (Patent No. 5,261,005).

4

Overcoming the Differences
Between Movie Theaters and
Home Theaters: How Yamaha’s
Cinema DSP Does It.

The use of Dolby Surround enables
audio decoding in a home theater
according to the same principle as in
a movie theater. But a home media
room is, of course, far smaller than a

Not Just Great Music
Performances,
but On-Location Sound

Back in 1986, Yamaha engineers
developed a way to make precise
acoustic “maps” of some of the
world’s most famous performance
venues. Using special single-point
quad microphones to measure
acoustic data, they created formulas,
digitally programmed into LSI chips,
which made it possible to reproduce
these actual “sound fields” under
identical conditions. Yamaha named
its new technology HiFi DSP (for
Digital Sound Field Processing). Its
DSP-1 Digital Processor won acclaim

DSP-A1000, an integrated amplifier
with the most advanced DSP technol­ogy yet, called Cinema DSP. Through
the use of Dolby Pro Logic and
Digital Sound Field Processing LSIs,
this new technology achieved what
was long believed impossible: an
enveloping surround sound that
brought the ambiance of a movie the­ater to an ordinary listening room to
create a home theater with spectacular
audio ambiance. In 1993, Yamaha fur­ther refined this formula with the
DSP-A2070—an integrated amplifi­er equipped with an all-digital ver­sion of Dolby Pro Logic.

MOVIE THEATER

movie theater, where the audience is
surrounded by ar rays of multiple
speakers. Yet amazingly, Yamaha
Cinema DSP is able to compensate
for the differences in facilities,
acoustics, dimensions and other
conditions between movie theaters
and a home listening room,
enabling the viewer to enjoy sound
that gives the sensation of being as
expansive as in a theater. That’s
what creating a home theater is all
about.

HOME THEATER

as the world’s first sound field proces­sor with the ability to store digital
data on the acoustic conditions of
concert halls, cathedrals and other
environments and reproduce these
conditions in ordinary listening
rooms.

CINEMA DSP: Theater-Quality
Sound at Home

But Yamaha engineers were already
looking ahead to the next challenge.
The introduction of Dolby Surround
Pro Logic in 1987 gave home users
the means of enjoying the same excit­ing effects of the Dolby Stereo used in
large movie theaters from their home
theater systems. This system, Dolby
Pro Logic, is designed to project dia­logue straight from the front, while
music and sound effects come from
the back and sides, to create highly
dramatic and realistic effects. Merging
the new Dolby technology with
Yamaha HiFi DSP, Yamaha once again
astonished the industry with the

The Superior Sound of

Tri-Field CINEMA DSP

Enter the Ultimate:
Tri-Field CINEMA DSP

The newest advances in movie sound
reproduction for the home, Dolby
Digital and DTS Digital Surround,
use discrete channels to provide an
expanded sense of depth, localization
and realism. To upgrade DSP technol­ogy for use with these systems,
Yamaha engineers conducted new
tests in the same dubbing theaters
used in the making of movie sound­tracks and developed an improved
processing technology called Tri-Field
CINEMA DSP. Instead of one or
two, it creates three separate sound
fields (Presence, Left and Right), each
produced from their own specific
sound field data. This results in sound
with highly accurate localization,
smooth movement, exceptional clarity
and richness, and startlingly realistic
presence. Only Yamaha is capable of
providing a sound experience with
this degree of sophistication.

5

DSP-A1:A Tour de Force in Audio/Aco

DSP-A1Digital Home Theater Amplifier

The DSP-A1 delivers nothing less than the world’s finest home theater audio performance. In every single respect, it is
absolutely state-of-the-art. Never before have you been able to select so many dif ferent sound fields to match audio
and video genres. Never before have you been able to experience such thrilling audio “presence” in your own home.
Through the wonders of Dolby Digital and DTS Digital Surround, together with Yamaha’s own leading-edge Digital
Sound Field Processing technology, you will enter a new r ealm of home enter tainment.

High-density main circuit board with daughter board.

The DSP-A1 offers a wide variety of
sound field programs, from the HiFi
DSP programs that reproduce the
sound fields of world-famous concert
halls, opera houses and jazz clubs, to
the CINEMA DSP programs that
deliver ideal theater sound in the
home and handle various movie
sound formats from monaural to

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Dolby Digital and DTS Digital
Surround. The technology that per­forms this high-precision, high-quality
sound field processing is concentrated
on one circuit board with a smaller
board attached.

LSI System for High Precision
Sound Field Processing

The processing board has digital input
pins for Dolby Digital and DTS Digital
Surround, as well as for the A/D and
D/A converters. CINEMA DSP effects
are based on accurate decoding in
Dolby Pro Logic, Dolby Digital and
DTS Digital Surround formats. That’s
why we use the original YSS-249 LSI,
in the Dolby Digital and Dolby Pro
Logic decoders. The use of ultra-preci­sion 0.5-micron standard designing
provides an even greater level of inte­gration to ensure extremely faithful

and precise decoding.

Dolby Digital decoding is carried
out on a single-chip 24-bit precision
DSP core that allows full 5.1-channel
decoding. The Dolby Pro Logic
decoder built into the YSS-249 uses full
digital processing to improve separation
and provide accurate cross-fade with no
fluctuations in level movement between
channels.

The DSPI56009 chip that stores
the DTS program developed by DTS
Corp. operates at a 93MHz clock rate
for the decoding of DTS digital sur­round.
Yamaha’s
superb
YSS-214
LSI han­dles all
sound field
processing

YSS-249 LSI

ustic Technology.

Less frequently used controls hide behind a panel whose oil-damped door glides gracefully open at a slight touch.

functions. In addition to sophisticated
DSP arithmetic/logic operations, this
versatile chip also performs digital
equalizer operations, enabling the
DSP-A1 to offer Cinema EQ and a
Center Graphic Equalizer.

Wide Range of Programs for
Enjoying All Types of Audio and
Video Genres

The DSP-A1 is equipped with 42
surround sound field programs that
handle everything from movies, music
videos and sports programs to pure
music sources. To watch a science
fiction space adventure movie, choose
the newest program, Movie Theater
Digital Sci-Fi. It will fill the room with
the maximum in science-fiction effects,
the infinity of space, zooming rocket­ships and galactic battles. For those
who like jazz, we’ve built in a new
sound-field program that reproduces
the sound field of the Bottom Line, a
famous New York jazz club. And the
Entertainment programs include Disco,
Game/Amusement and Party. No
matter what type of audio or video
entertainment you’ve selected, you’ll
enjoy it more with the DSP-A1’s
special programs.

High-Power, High-Quality
Power Amplifier

Most of the massive interior of the
DSP-A1 is given over to the power
amplifier components, allowing it to
deliver movie sound fields and music
reproduction with a never-before-heard
feeling of presence.

The DSP-A1 features an all-discrete
configuration for the entire seven
power amp channels that are used for
CINEMA DSP playback. The surround
channels handle Dolby Digital and
DTS Digital Surround recorded with
the same quality and range as the main
channels, while the five left, center and
right, rear-effect left and rear-effect
right channels have exactly the same
power and quality.

The amplifier’s power capability is
formidable: rated output of 110 watts
for the left, center, right, and two rear
effect channels, and 35 watts for the

two front effect channels.

Auto Priority Input Terminal
Selection and Auto Decoder
Selection

Digital input terminals are provided to
handle any kind of digital input.
Functions are programmed to select
priority in order of AC-3RF, optical
digital, coaxial digital and analog when
different digital formats ar e input from
the same source. The sound decoder is
also automatically selected and
processed according to
the combination of the
format of input signals
and the selected sound
field programs, while
DSP sound field process­ing is optimized at the
same time.

If MOVIE THEATER 70mm, for
example, is selected and the input is a
DTS signal, the DTS decoder is auto­matically engaged and a switch is
made to Movie Theater DTS Sci-Fi.
If the signal is Dolby Digital, then a
switch is made to Movie Theater
DGTL Sci-Fi, whereas if the input is
PCM or analog, Movie Theater
70mm Sci-Fi is displayed. If a
LaserDisc is played on Dolby Digital,
the demodulator starts up and input
automatically switches to AC-3RF.

The processing state and type of
format that is input and selected is
shown on the right side of the front
panel display. When a digital source is
being input and the effect is turned
off, sampling frequency and number
and type of channels are displayed.

䢇 The DSP-A1 is also offered with a brilliant gold finish.

Macro-Command Remote Control Unit

The macro-command remote control unit has a learning function and controls for
other Yamaha A/V system components, so additional functions can be operated with a
touch of the finger. Data for up to seven macro-commands can be stored in memory
for everyday use at the touch of a single button. One example would be turning the
power on, selecting DVD/VCR 3 input, turning the power on to the DVD player,
and starting play.
䢇 Basic functions can be selected with the
door closed; opening it gives you access to a
wide range of additional controls.
䢇 You can use the learning function to
have the remote learn a total of 50
commands for various other components.
䢇 There are 13 user-programmable macro
keys. Each one can remember up to seven
sequential commands. To program a key,
you press the Macro button, select the
macro key to be programmed, select the
functions you want memorized, and press
the Macro button again. Thereafter, the
functions you have selected will be engaged,
in order, each time you press that macro
key.
䢇 The DSP-A1 and the RX-V2095 have
LED lighting.
The RX-V995 has
luminescent
lighting that stays
bright for hours
after 10–20
minutes exposure
to light.

7

Digital Input and Output for DVD

The DSP-A1 offers a Dolby Digital
(AC-3RF) input terminal for LD play­ers that can handle Dolby Digital, five
optical and three digital input termi­nals, and one digital Rec Out terminal
for DVD players, MD recorders and
CD players. Compatibility with each
input means there is no need to bother
with initial settings.

Rec Out Selector with BGV
Function

The audio or video source can be
recorded on VCR 1, 2 or 3 or Tape 1
or 2. You can also record a different
source on Tape 1 or VCR 1. The BGV
function allows you to record an audio
source with a different video source.

Preout Terminals for All Channels
Allow Use as a Processor
with Effect Amp.

All channels are provided with preout
terminals so you can add an external
power amplifier to take even greater
advantage of the DSP-A1’s CINEMA
DSP functions. The left, right and
center channels have pre-main couplers,
allowing operation as an independent
three-channel power amplifier.

Full Capabilities for Future
Expansion

In addition to the latest Dolby Digital
and DTS Digital Surround functions,
the DSP-A1 features external decoder
input that allows the input of six analog
channels for future formats such as
MPEG multichannel and DVD audio.

Sources

Terminals

Automatic
Selection

DSP-A1

Surround
Formats

Surround
Images

CINEMA DSP and HiFi-DSP

Can Handle Everything

from Monaural to 5.1 Channels

V C R

Analog

C D

Coaxial Digital

AUTO PRIORITY INPUT TERMINAL SELECTION

AUTO SURROUND DECODER SELECTION

StereoMono

Pro Logic

YAMAHA CINEMA DSP

D V D

Optical Digital

2-Ch

Dolby

Digital

Dolby

Dolby

Digital

(5.1Ch)

LD

AC-3 RF

Priority

DTS

Digital

Surround

(5.1Ch)

Easy Operation

Operating the DSP-A1 is extremely
easy. All you have to do is select your
desired source and sound field pro-

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Mono Field HiFi DSP Duo-Field Cinema DSP Tri-Field Cinema DSP

DSP-A1 Inputs and Outputs

Phono 䡲
CD 䡲䡲䡲
Tuner 䡲
MD/Tape 1 䡲䡲 䡲䡲
Tape 2 䡲䡲
LD 䡲䢇䡲 䡲 䡲
TV/DBS 䡲䡲䡲䡲䡲
VCR 1 䡲䡲 䡲䡲䡲䡲
VCR 2 䡲䡲 䡲䡲䡲䡲
DVD/VCR 3
Video/Aux
Monitor 䡲䡲

DSP-A1 Extensive System Connections

In addition to the 6-channel external decoder input terminals, there are
pre-main and center couplers, rear- and front-effect channel preout termi­nals. subwoofer outputs (mono and 2 split), dual center speaker terminals
(with switch), and speaker impedance selector. All speaker terminals are
2-way binding type (banana plug compatible). (Photo: DSP-A1 US model)

*VCR Out has capability to use monitor out.

Analog Digital Video

In Out In Out In Out In Out In Out

䡲䡲䡲 䡲 䡲䡲* 䡲䡲*
䡲䡲䡲

Coaxial Optical

AC-3
RF

Composite

S Video

gram. Preprogrammed modes
require only a touch, while the
macro-command remote control and
on-screen functions let you cus­tomize operation for greater conve­nience.

Elegant in Every Respect

The DSP-A1 is a component that
announces its (and your) commit­ment to quality in no uncertain
terms. Its high-class image is further
confirmed when you touch the
knobs: they turn with ultra smooth­ness. Even the panel door is special:
you don’t have to push it all the way
open, just a slight pressure on the
bottom causes it to glide
gracefully down. As befitting
Yamaha’s finest component, the
DSP-A1 is elegant in every
respect.

Bass Extension

Turn the bass extension switch on to
provide +7dB boost to the main
speaker’s low end centered at 70Hz.
Frequencies under 50 Hz will be cut
by 12dB/oct. to prevent overdrive.

DSP-A1 Surround Programs

Program Name PCM/Analog Input Dolby Digital Input DTS Input

䢇 HALL 1 Hall B in Europe <–––– <––––

䢇 HALL 2 Hall E in Europe <–––– <––––

䢇 CHURCH Freiburg <–––– <––––

䢇 JAZZ CLUB Village Vanguard <–––– <––––

䢇 ROCK CONCERT Warehouse Loft <–––– <––––

䢇 ENTERTAINMENT Party <–––– <––––

䢇 CONCERT 䡵 Pop/Rock 䡵䡵

VIDEO 1 䡵 DJ 䡵䡵

䢇 CONCERT 䡵 Classical/Opera 䡵䡵

VIDEO 2 䡵 Pavilion 䡵䡵

䢇 TV 䡵 Mono Movie <–––– <––––

THEATER 䡵 Variety/Sports 䡵䡵

䢇 MOVIE 䡵 70mm Spectacle 䡵 DGTL Spectacle 䡵 DTS Spectacle

THEATER 1 䡵 70mm Sci-Fi 䡵 DGTL Sci-Fi 䡵 DTS Sci-Fi

䢇 MOVIE 䡵 70mm Adventure 䡵 DGTL Adventure 䡵 DTS Adventure

THEATER 2 䡵 70mm General 䡵 DGTL General 䡵 DTS General

䢇 DOLBY/DTS 䡵

SURROUND

䢇: HiFi DSP Programs 䢇: A/V Programs

䡵: Duo-Field CINEMA DSP 䡵: Tri-Field CINEMA DSP

Hall A in Europe <–––– <––––

Hall C in Europe
Hall D in U.S.A. <–––– <––––

Live Concert
Tokyo

Royaumont <–––– <––––
Village Gate

The Bottom Line <–––– <––––
The Roxy Theatre

Arena <–––– <––––
Disco

Game/Amusement <–––– <––––

Pro Logic/Enhanced䡵Dolby Digital/Enhanced䡵DTS Digital Sur. /Enhanced

Dolby Pro Logic/Normal Dolby Digital/Normal DTS Digital Sur./Normal

HiFi DSP and CINEMA DSP: an
Amazing Variety of Sound Field
Programs

HiFi DSP sound field programs

HiFi DSP creates sound fields that have
the realistic feel of specific places. The
original input signal is output without any
further processing, to which HiFi DSP
adds a sound field. The decoded signal
from a Dolby Digital or DTS source is
output as is; only the reflected sound
component is added. This allows you to
hear a sound field so lifelike that you will
feel as if you are actually in one of the
world’s great churches or concert halls.

HiFi DSP compatible with 5.1 chan­nels can reproduce digital multichannel
format music sources to further expand
your entertainment possibilities.

CINEMA DSP sound field programs

These programs automatically select
decoders according to output to process
one, two or three sound fields from
monaural to 5.1-channel, providing the
optimum sound field effect.

Closed Parameters

HiFi DSP

CINEMA
DSP

Advanced tuning of closed user
parameters

Parameter configuration differs according
to the sound field program, but there are
a total of 51 parameters for movies. The
selectable range of the parameters,
determined after auditioning a large
number of movie sources, is from several
tens to several hundreds of steps.

There are 11 parameters for the
presence sound field, including the
selection of the sound field pattern itself,
room size, liveness and initial delay.
There are 10 surround channel parame­ters for stereo and Dolby surround. The
15 parameters for Dolby Digital include
surround sound field pattern, delay types,
liveness and mixing rate types. The 15
parameters for DTS Digital Surround
include independent surround sound
field patterns, delay types, liveness and
mixing rate types.

9

Flagship Receiver for Revolutionar y Ho

R X-V2095Digital Home Theater Receiver

The RX-V2095 gives you an incredible range of revolutionar y per formance featur es for home theater enjoyment,
with seven powerful amplifier channels, Tri-Field/Duo-Field CINEMA DSP,
HiFi DSP and DTS Digital Surround, and Dolby Digital processing. Plus extra benefits
like multi-room capability and on-screen display. If you’ve decided to assemble
a high-end home theater system, this is the place to start.

Vitally Important A/D and D/A
Converters Offer Superb
Performance

The interfacing of data-rich digital
signals and high quality analog signals
makes sophisticated A/D and D/A
converters indispensable to efficient
sound field processing.

The RX-V2095 uses delta-sigma
format A/D converters with 20-bit, 64­times oversampling to input analog
signals into the sound field processor. It
also uses delta-sigma format D/A
converters with 20-bit, 8-times
oversampling and superior jitter-resistant
characteristics to convert the total 8­channel CINEMA DSP sound field
output, including Dolby Digital/DTS
Digital Surround low-frequency effect
(LFE) signals, to analog. The CINEMA
DSP digital data that reproduces
everything, even the subtle air spaces in a
concert hall, is thus flawlessly converted
to high quality audio signals.

10

Wide Range of Programs for Enjoying
All Types of Audio and Video Genres

The RX-V2095 is equipped with 36
surround sound field programs that handle
everything from movies, music videos and
sports programs to pure music sources. To
watch a science fiction space adventure
movie, choose the newest program, Movie
Theater Digital Sci-Fi. It will fill the room
with the maximum in science-fiction
effects, the infinity of space, zooming
rocket-ships and galactic battles. No matter
what type of audio or video entertainment
you’ve selected, you’ll enjoy it more with
the RX-V2095’s special programs.

DTS Digital Surround and
Dolby Digital

This new system of digital encoding gives
movie viewers the most realistic sound
sensation yet. And now you can enjoy the
same spectacular stereo surround ef fects in
your home as well, thanks to the
RX-V2095’s built-in DTS and Dolby

Digital processing capability.

More “Live” Experiences

To add more life to your favorite music,
there are six HiFi DSP programs, based on
data from actual performance venues:
Concert Hall, Rock Concert, Stadium, Jazz
Club, Disco and Church.

High Power 7-Channel Output

In order to allow you to take full advantage
of CINEMA DSP’s capabilities, the
RX-V2095 provides seven channels of
amplification. Using seven speakers, you’ll
hear sound with amazing presence and
imaging. And since the main, center and rear
effect channels are all rated at 100W, there’s
more than enough power to bring out the
full dynamics of every source.

Carefully Selected High Quality Parts

All parts were strictly selected and
subjected to repeated listening tests to ensure
that only the best were used. For example,