Yamaha A-S2000 Amplificator

Yamaha A-S2000 Amplificator

de la 6 699,00 RON 4 oferte
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Numar canale2.0
Putere per canal120 W

Formate suportate


Intrari HDMINu are
Intrari digitale (coaxiale)Nu are
Intrare tunerDa
Intrare casetaDa
Iesire casetaDa
Intrare CDDa
Intrare AUXNu
Intrare PhonoDa
Intrare lineDa
Port USBNu
Intrare casti audioDa


Latime435 mm
Adancime465 mm
Inaltime137 mm
Greutate22.7 kg

Alte caracteristici

Suport DLNANu

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Yamaha Introduces a New, Superior Approach to
Analogue Amplifier Design. Full Floating and Balanced Circuit Design
Achieves for the First Time the Full Potential of Analogue
I/O (input to output) Direct Symmetrical DesignFull-stage balanced signal transmissionFloating balanced power ampFully balanced control ampThree parallel balanced volume and tone controlsFour large capacity power supplies for power ampShunt type local regulators for preamplifierDiscrete headphone amp for low-impedance driveDiscrete phono amp with high-precision head amp and equaliser ampSpecially designed feetYamahaprime;s involvement with and passion for music goes back more than a
century, to when we built our first reed organ in 1887. Now we are the
worldprime;s leading producer of pianos and other musical instruments, and
are involved with music in many other ways as well. We manufacture
professional recording equipment, we design concert halls and we assist
artists at concerts with set up and sound tuning.
This knowledge and experience benefits our production of audio components in many ways.
We introduced our first HiFi (High Fidelity) turntable in 1954, becoming the first company to actually use the term ldquo;HiFi. rdquo;
Thereafter we were one of the first to offer mass-produced, high quality
audio equipment, and introduced many legendary stereo components.
We hope you enjoy the genuine HiFi experience of Yamaha Natural Sound. Full Floating and Balanced Circuit Design Achieves for the First Time the Full Potential of Analogue Amplification
More than forty years have passed since the introduction and
widespread adoption of full transistor HiFi audio amps during the 1960s.
In the 1970s, high performance, high output PNP-NPN transistors made
possible the pure complementary configured power amps that are now the
main type of high quality audio amps.
In recent years, however, digital amps have become popular for their
high conversion efficiency and superior uniformity of operating
precision, as well as for their lower weight, size and heat production
as compared to analogue amps.
Which leads to the question, which direction will audiophile-level amps take in the future?
Generally, two possibilities are considered: continuing to improve the
traditional pure complementary configuration analogue amps or working to
achieve higher sound quality from digital amps.
But Yamaha has selected a third approach.
This is an entirely new floating and balanced power amp that, by using
power transistors with the same polarity that are not complementary,
achieves complete symmetry of pullable operation at the output stage and
permits full balanced transmission
(amplification) from the input jack to just before the speaker jack mdash; a capability that has long been the dream of audiophiles. Full-Stage Balanced Signal Transmission
The A-S2000 achieves fully balanced signal transmission from input to output (balanced design refers to the use of two signal
conductors that have equal impedances to ground).
Balanced transmission is capable of canceling noise produced internally and externally, and so is considered to be an ideal
amplification method, eliminating the sound quality degradation caused by noise.
If it is only partially adopted, however, it will be largely ineffective and may even have negative effects.
The A-S2000 is the worldprime;s first integrated amp to offer full-stage
balanced transmission, combining high power output with good sound
texture and outstanding S/N performance.
Its capabilities will be heard to best effect when paired with the CD-S2000 CD player, which employs the same principle. Floating Balanced Power Amp
The Floating Balanced Power Amp configuration is completely different
from the pure complementary circuit design that has been the mainstream
of HiFi amps for nearly forty years.
It adopts an output element having identical polarity on the plus and
minus sides of the output stage, with both sides having their own power
supply and feedback, thereby achieving total symmetry of pullable
operation at the output stage.
The power supply unit has four floating elements (no restrictive
grounding connections), two for each channel, so plus and minus and
completely symmetrical. Fully Balanced Control Amp
To achieve fully balanced transmission, all audio circuits except for the phono equalizer are balanced.
The line amp also uses a balanced configuration for its volume and tone
circuits, achieving fully balanced transmission from the XLR balanced
input jack to just before the speaker jack.
Additionally, the output from the unbalanced RCA input and phono equalizer undergoes balance conversion internally. Parallel Volume and Tone Controls
To ensure ideal fully balanced operation, the volume and tone control systems must be extremely precise.
Conventional analogue volume systems suffer from gang error, and cannot
achieve sufficient accuracy, even when using high precision parts.
Therefore, for the A-S2000 we developed a unique method: canceling out
slight precision differences by the parallel operation of three high
sound quality digital volume ICs for each channel and operating the
system with an analogue encoder.
When using the bass and treble tone controls, each of the three volume
elements is applied in succession, and during tone default, three
equivalent volume elements for each channel are used for volume
This ensures the best sound quality during both tone control and default operation. Power Supply
The A-S2000 has four large capacity power supplies for the power amp that are completely isolated from ground.
Shunt type local regulators that prevent degradation of sound quality by
amperage fluctuation ensure a clean and stable power supply for the
Naturally, parts that directly affect sound quality such as the large
power supply transformer and carbon sheath block capacitors
were chosen only after careful evaluation. Symmetrical ConstructionEnlarge
Completely symmetrical construction with integrated amp left-right separation. The A-S2000 has a completely symmetrical construction intended to
achieve the ultimate in integrated amp left-right separation, equal to
that of separate amps.
A central reinforcing bar ensures that the chassis is rigid and stable.
Specially Designed Feet
The extra-heavy feet provide a choice of two bases.
You can leave the round, flat neodymium magnets in place or remove them to rest the amplifier on four single points.
The feet are also height adjustable.
They ensure stability on any surface, with superior vibration damping. Headphone Amp for Low Impedance Drive
The fully discrete, high performance headphone amp is compatible with low impedance drive.
Its pure and powerful sound quality is best appreciated with high quality headphones. Discrete Phono Amp
An extremely low-noise phono amp plus a dedicated MC head amp ensure
excellent musical clarity and imaging with both MC and MM phono
Denumiri similare la Amplificator Yamaha A-S2000: A S 2000, AS2000, A S2000, A-S 2000

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