Yamaha A-S CD-S3000_brochure_en.pdf

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S3000
s e r i e s
A-S3000
Integrated Amplifier
Compact Disc Player
CD-S3000
A piano comes into this world through the perfect synergy
of advanced technical skill and artistry. Such a piano can
create sound that truly reflects the player’s feelings.
The final stage in piano production is called “voicing.”
This breathes life into the instrument and truly makes it
musical. To accomplish this, highly skilled experts focus
their concentration and sensitivity completely on each note
and delicately adjust the hardness and resilience of the
hammers that strike the strings, establishing the perfect,
consistent sound for the entire instrument and determining
its tonal personality.
Yamaha brings this exact same approach and process to
its audio products. Our experienced technicians perform
exhaustive listening tests and strictly consider every
single element and component, to draw closer—step by
meticulous step—to the ideal sound.
Introducing the S3000 Series, the absolute culmination
of hi-fidelity audio. Yamaha knows all about sound and
even more about music, and has brought all its rich artistic
Pure and profound
sensitivity into the creation of this line.
All the energy and finely nuanced technique of the artist,
all the power and subtlety of the original music is fully
reproduced, with absolutely nothing left out. The result
is a remarkably pure sound—powerfully expressive and
exquisitely profound.
Beautiful and elegant in appearance, sturdy and reliable in
construction, created with the latest, innovative technology
and genuine craftsmanship—all nurtured by our long
experience in the manufacture of musical instruments.
Yamaha proudly offers this new high-end lineup, delivering
supreme quality in every way. This is the manifestation of
our passion to give music lovers the ultimate in listening
enjoyment—a tradition we've been carrying on and
advancing for more than 125 years.
A-S3000
NEW PRODUCT BULLETIN
Integrated Amplifier
Profoundly accurate sound with the full expressive power of the music.
Exceptional sonic purity, elimination of signal loss—in an exquisite, elegant design.
The supreme culmination of the Yamaha line—the A-S3000.
The goal: To express the deepest emotions of the artist, to touch and move the hearts of listeners, and to deliver the utmost pleasure
in the music. The S3000 series was born from this passion. In order to make this a reality, we designed the A-S3000 Integrated Amplifier literally from
the ground up—returning to the drawing board of amplifier design, completely revising the chassis structure, circuit layout, and other elements—
creating Yamaha’s own unique Floating and Balanced Amplifier. Bringing our passion for music, our desire to provide the ultimate sonic experience,
and our technological expertise to the forefront, we thoroughly refined and redefined how a top-flight amplifier should perform—and sound.
Exhaustively strict anti-vibration measures, and Rigid Streamlined Construction
which thoroughly achieves low impedance.
Floating and Balanced Power Amplifier, which adopts MOSFETs to realise complete left-right symmetrical design.
Large level meters that visually convey all the dynamics of the music.
Meticulously crafted and beautiful appearance reminiscent of a musical instrument.
Everything—even the construction, the strictest selection of parts, the meticulously finished exterior—comes together with Yamaha’s long tradition of
musical sensitivity to offer the discriminating music lover the richest, most dynamically expressive listening experience possible.
A-S3000
I n t e g r a t e d A m p l i f i e r
NEW PRODUCT BULLETIN
Rigid Streamlined Construction—
provides strict anti-vibration protection,
and enables shortest cabling routes
The A-S3000 has adopted a newly designed highly
rigid double structure construction in order to achieve
profoundly pure and accurate audio amplification. The
bottom chassis and insulator ward off external vibration,
and provide each circuit board a floating structure
supported by an independent inner frame, thoroughly
eliminating the impact of vibration. And the power
source unit, which consists of a power transformer and
capacitors, which are major sources of internal vibration,
is fixed firmly with a three-dimensional structured inner
frame, and is supported solidly by the front panel and
the rear panel. The power amp circuit board and the
weighty heat sink are attached to the left and right inner
frames. The power supply unit and amplifier circuits
are thus structurally isolated, achieving an ideal chassis
structure which thoroughly blocks the transmission of
vibration. Moreover, the inner frame that supports the
power transformer is shaped with ample space below it,
allowing passage of the wiring to each circuit over the
shortest possible route. The newly developed chassis
with this innovative structure helps to minimise the
length of the signal paths and achieve low impedance,
as well as providing high rigidity and anti-vibration
benefits. The result is a dramatic reduction in signal loss,
for remarkably pure audio amplification.
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helping to create sound of greater clarity
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and spaciousness.
Comprehensive low impedance
design, shortened signal paths and
copper-plated chassis
In order to achieve the absolute purest signal
transmission, capable of communicating even the
most subtle nuances of the music and its powerful
dynamism—for example, reproducing powerful, agile
low frequencies, and portraying all the emotional
nuances of the human voice—we’ve methodically
pursued low impedance throughout the A-S3000.
Using a double construction design creates space
for cables under the bottom of the chassis, enabling
the
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thout
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roduction with
effect on the music. Also, the three-dimensional inner
ff
h
i Al
h h
di
i li
frame to which the power transformer is mounted is
copper plated. Extremely low impedance is assured
by lowering the ground potential. This sharply lowers
the impact of noise, and delivers a profound and richly
emotional sound—one that perfectly communicates all
the original expression of the artist.
Six mm thick top panel made of
non-magnetic aluminium plate
The top panel and
the front panel are
made of aluminium,
a non-magnetic
material, in order
to eliminate any
adverse effect on
the audio signals.
In the course of
strictest examination
of the sound
quality, the front
panel thickness was
set at 7mm and the top panel was set at 6mm. This
helps to realise an exceptionally natural, spacious
sound by providing a highly rigid chassis structure,
and at the same time, skillfully controlling the impact
of vibration. Moreover, heat dissipation openings on
the top panel were formed by high precision cutting
from both sides—front and back—of the panel,
and finished with thorough scrupulous attention
to every detail.Stylish slits in the centre, matching
the companion CD-S3000 and its design, strongly
emphasise the powerful power source unit inside by
having the same width as the power transformer.
Bottom view
Large toroidal transformer,
solidly mounted with independent
three-dimensional inner frame
An independent three-dimensional inner frame has been
employed in order to provide a more solid mount for the
large toroidal transformer, which is installed in the centre
of the A-S3000, considering the ideal weight balance.
The completely copper-plated inner frame has a structure
which integrates the front-back and left-right frames with
a convex-shaped highly rigid main frame as its base,
reducing vibration coming from all directions. For the
base, to which the power transformer is installed on the
Audio signal route
Power supply route
A-S3000
I n t e g r a t e d A m p l i f i e r
NEW PRODUCT BULLETIN
Left-right symmetrical design for independent
pre amp and power amp blocks
The amplifier circuit design features independent pre
amp and power amp blocks, and perfect left-right
symmetry. Separation of the pre amp, which handles
low energy signals, from the power amp, which
handles high-energy amplified signals, greatly reduces
sound deterioration caused by mutual interference.
Moreover, the left-right symmetrical design, which
keeps the left and right power stages completely
separate, ensures greater channel separation and
enhances clarity of the stereo image.
MOSFETs, which provide a warm and natural sonic
character. The use of MOSFETs, which have the
same polarity on the plus and minus sides, further
evolves the ideal of a complete symmetrical design,
to eliminate sound quality variations due to difference
in polarity—a major distinguishing characteristic of
the Floating and Balanced Power Amplifier—resulting
in sound with a superior signal-to-noise ratio and a
superbly well-defined sound field.
All-stage balanced transmission
The A-S3000 features fully balanced signal
transmission. Moreover, the control system circuits
(volume, tone, etc.) of the pre amp feature totally
balanced operation, realising ideal balance in all stages.
connections. In addition
to wiring of the block
capacitor of the power
unit—which is the real
heart of the amplifier
and as such requires
high power—screw
connections were adopted
for all crucial spots of signal transmission, including the
connection of the pre amp circuit with the power amp
circuit, and the cabling to the speaker terminals from the
output stage of the power amp. In addition to making the
signal path as short as possible, this significantly lowers
the impedance, and greatly reduces signal loss.
Floating and Balanced Power Amplifier
with MOSFETs
The basic design of the power amp circuit adopts
Yamaha’s proprietary Floating and Balanced Power
Amplifier technology. Adopting output elements with
the same polarity on the plus and minus sides of the
output stage, and also completely separating the NFB
(Negative Feedback) circuit and power supply into a
total of four plus and minus sides of the left and right
channels, results in thoroughly symmetric push-pull
operation of the output stage, Completely floating the
entire power amp circuit from the ground removes any
negative impact of minute voltage fluctuations or ground
noise. Moreover, the output elements are comprised of
A-S3000 Floating and Balanced Power Amplifier
Symmetrical
Speaker
Superior quality electronic volume control for
optimum sound
We’ve utilised a high-
quality digital volume
control specially designed
by New Japan Radio Co.,
Ltd., which consists only
of ladder-type resistance,
removing the impact
of slew-rate decline or
colouring of the sound, delivering higher purity in the
sound, and excellent, fast response to large volume
changes and steep transients.
Direct drawing toroidal transformer for
complete elimination of signal transmission loss
The cabling of the
power transformer
adopts an ingenious
method in order
to significantly
reduce impedance.
The winding of the
transformer itself is
directly connected
to the terminal with
a screw, unlike
with conventional cabling. This enables a power
supply which thoroughly limits connection loss
and energy loss caused by soldering. The toroidal
transformer was selected with top priority on sound
quality, contributing superior strength, as well as a
profoundly natural and spacious sound.
Discretely configured phono amp
The phono amp is comprised of an MC head amp
and an equaliser amp, each of which are discretely
configured,
resulting in a
rich sound with
pronounced
musicality, when
playing vinyl
records with both
MC and MM
phone cartridges.
EQ amp
MC head amp
MOSFET
MOSFET
Floating power supply
Feedback
Floating power supply
Feedback
+
S Signal
+
–
S Signal
–
Ground wiring
Exceptionally low impedance through
secure screw connections
In order to completely eliminate signal energy loss,
important parts of even the circuits employ screw

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