Amplificator Integrat Yamaha A-S1100
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Numar articol:200578293
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Disponibilitate:Indisponibil
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Preț:7.649,00 Lei
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Anuntul a expirat la:21.09.2018, 15:31
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Specificatii
Complete inheritance of the superior qualities of Yamahas
EmotionalDynamic sound.Dedicated single-ended high-grade integrated
amplifier design that faithfully draws out all the intrinsic value
of your favourite player or D/A converter.Floating and Balanced
Power Amplifier with MOSFETsDedicated single-ended amplifier for
all types of audio sourcesAll-stage full discrete configuration for
strong reproduction of high notesThorough low impedance design
ensures powerful bass response with extremelySuperior quality
electronic volume control for optimum sound dynamic, energetic
feelLarge capacity power supply unit delivers energetic, dynamic
sound with fast responseSymmetrical design in pursuit of ideal
stereo reproductionDiscretely configured phono amp Level meters
visually reflect the dynamics in the musicElegant design with
luxurious real wood panelsOriginal speaker terminals combine ease
of use and beauty with high sound qualityFloating and Balanced
Power Amplifier with MOSFETs The basic design of the power
amplifier circuit adopts Yamahas own, uniquely developed 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 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 amplifier circuit from the ground removes any negative
impact of minute voltage fluctuations or ground noise. Moreover,
the output elements are comprised of 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 polaritya major distinguishing
characteristic of the Floating and Balanced Power
Amplifierresulting in sound with a superior signal-tonoise ratio
and superbly well-defined sound field.Dedicated single-ended
amplifier for all types of audio sources Since this device employs
a dedicated singleended amplifier, it provides excellent response
in amplification of single-ended analogue sound from all kinds of
audio sources, such as CD players of D/A convertersand the A-S1100
takes advantage of this in having been carefully fine-tuned for
optimum sound quality. By fully utilising single-ended
amplification, the A-S1100 transparently draws out the intrinsic
qualities of your favourite audio devices, including those made by
other manufacturers.All-stage full discrete configuration for
strong reproduction of high notesThis amplifier adopts an all-stage
fully discrete configuration through all sound circuit stages,
using only the most meticulously selected high-precision parts from
input to output. (Applicable during tone control circuit defeat.)
The slew-rate of the audio signal has been improved to bring lively
and strong response to high musical notes. Moreover, the tone
control circuit lets you switch to defeat state and enable a full
discrete configuration that bypasses the op-amp IC of the internal
circuit, simply by setting the BASS/TREBLE knobs to their center
points. Thorough low impedance design ensures powerful bass
response with extremely dynamic, energetic feel By strengthening
the capacity of the high current route (raising the section area of
the cable core wire to about 60% of that of the A-S1000) and by
pursuing thorough low impedance design, including forming
screwclamped wire connections of major ground points, the A-S1100
boasts excellent speaker drive power with a damping factor of more
than 250 (8, 1kHz). Along with the large-capacity power source
transformer equipped with an EI core, this design delivers bass
reproduction that is both strong and uplifting.Superior quality
electronic volume control for optimum sound Weve utilised a
high-quality digital volume control specially designed by New Japan
Radio Co., Ltd., which consists only of adder-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. Moreover, the tone
controls employ a triple-parallel method, minimising the
detrimental impact on sound quality seen with straight-line tone
controls. In addition, the bass, treble, and common circuits each
utilise simple construction in which the NFB of the amp is not used
and the CR elements are simply fixed in a straight line, ensuring
exceptionally pure sound reproduction even when tone control is
applied and superb response to audio signal transients. When tone
defeat is applied, straight signal flow from only one volume
circuit to a discrete configuration buffer amp is realised.Large
capacity power supply unit delivers energetic, dynamic sound with
fast response The A-S1100 employs an original EI transformer,
carefully customised for optimum compatibility with the chassis.
Combining four large capacity carbon sheath block capacitors
delivers an energetic soundeven during high volumethat is possible
only with the A-S1100. Moreover, since the control amp and control
system is equipped with twelve shunt type local regulators that
prevent deterioration caused by currency fluctuation, a clean and
stable power supply is achieved. The EI transformer is mounted on
the chassis using brass washer, restricting internal vibration that
would result in noise.Symmetrical design in pursuit of ideal stereo
reproductionEnlarge The left-right symmetrical construction with
the power supply in the centre and the power amp blocks on the ends
achieves greater separation of the left and right channelsnecessary
for proper two-channel stereo reproductionand ideal weight balance.
Including fine tuning by a centre frame which extends from the
front to the back of the casing and specially made metal legs
(selectable from spike or pad), the A-S1100 has superb mechanical
rigidity and installation stability that dramatically lessens the
impact of external vibrations on sound quality. Discretely
configured phono ampThe 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 phono cartridges. Level meters
visually reflect the dynamics in the music The centre of the main
unit features level meters that provide visual enjoyment of the
music as well, with the rapid and delicate movement of the needles.
The meter is illuminated softly from inside by LED, giving a warm,
beautiful lamplight look. The meter indicators can, along with VU
display, be switched to peak display, and can be selected according
to your preferences. The window of the meters has been
precision-fit to the panelcompletely flat, with no gapsfor an
elegantly beautiful appearance.Elegant design with luxurious real
wood panelsThe refined design and construction of the A-S1100
reflects Yamahas commitment to fine craftsmanship and art, uniquely
drawing on its long experience as a world-class musical instrument
maker. The metal front panel and the side wood panels have been
beautifully integrated by the masterful use of advanced processing
technology. Moreover, the dials and tone controls are machined
aluminium knobs, for a richly textured finish and graceful touch.
Original speaker terminals combine ease of use and beauty with high
sound qualityOur meticulous obsession with quality continues
through to the speaker terminals, which are the last and crucial
link in the audio chain. Featuring screw type terminals. with
originally designed handles, these are created by cutting pure
brass, enabling secure connection with no reduction in sound
quality. Contoured to the shape of human fingers, they not only
look beautiful, but can be turned easily and fastened tightly with
minimal effort. They are also compatible with connections using
banana plugs. * Banana-plug compatible speaker terminals are
available in some regions. Remote control with simple design and
superior texture The supplied remote control features a design
complementary to the aluminium panel of the amplifier itself, with
a simple, easy-to-understand button layout and gorgeous metallic
texture. In addition to the basic volume adjustment and input
switching controls of the A-S1100, it can also be used for
operation of the companion CD-S2100.
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