DAC-3SE
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If you listen to this gear, mabey you will have a mistake, it just
like a tube DAC,but it have more dynamic and control, deep bass,
thick mid and soft high but you can hear more detail.
1. Parallel D/A chips are adopted in this design. By equipping each
channel with two pieces of top-grade parallel PCM1704U-K, the
tone quality, dynamics and linearity are all considerably improved.
2: Use DIR9001 to take the demodulation, the DIR9001 fixed
Jitter value is as low as 50PS, being the lowest Jitter demodulation
chip at present, while CS8414/8412 Jitter value is as high as 200PS.
As a whole, this is not good enough that we carried out many
modifications, like increased the external connection phase locking
circuit and so on, finally successful revised the electric circuit,
used the non-model the DIR9001 circuitry, reduced the to 20PS which
is even lower than any external phase locking circuit. tens of
thousands Yuan tops imported DACs, Jitter are above 40PS.
3. Power supply is congregated. We use 18 groups of new-type
parallel stabilized voltage supplies to respectively power the
function circuits, three transformers which have a total power of
150W and a special filter capacitor which exceeds 40,000 UF. It is
very obvious to tell from this design that a good power supply is
the base of an excellent sound quality and that I believe every user
will agree.
4. In this design, the transformer, the digital and analog parts are
all compartment shielded by aluminium sheets.
5: By using the lowest time-base distortion CANARE BNC coaxial input
terminal, we get in practice a clearer sound with more sense of
level than ordinary RCA coaxial and fiber input.
6. To achieve the best performance of this product,
heavyweight pure aluminum alloy machine box is used to prevent the
eddy current of transformer from interfering on circuit board. The
upper plate and under plate of the box are both made from aluminum
alloy which is as thick as 5MM, the lateral plate 8MM and the face
plate up to 12MM. The device net- weight is 12.5Kg without packing.
7: Thanks to its high speed, excellent linearity and low phase
distortion, diamond differential circuit is being loved and
emphasized by more and more audio fans. Although the circuit is
complex, the tone quality is impressive. We’ve done a lot of study
and experiment on diamond differential current these two years,
aiming to get a better solution of circuit design.
For a DAC, high analyzing ability is the most important requirement.
The detailed recurrence of resolution lies in the upward and
downward characteristics and the noise level of the output
amplifier. Because output amplifier is the bottleneck, if the upward
characteristic is not good enough, the signal cannot be followed
correctly on time and amplifier can only catch half or even lower of
the signal level when it disappears. This leads to a downsizing of
the original range of signal output from DAC, which directly causes
obscurity or even loss of sound effect and a low analyzing ability.
A lot of DACs, therefore, even with a highly analytical D/A
converter in the digital section, cannot play most of the details
due to its low analog circuit speed. To get a good upward
characteristic, the only way is to use a high-speed low-noise
transistor amplifier. Even operation amplifier and tube cannot
compare with high-speed low-noise transistor amplifier in
effectively lowering the TIM distortion which has a big impact on
the sound quality and promising a pure and pleasant sound delivery.
Circuit diagram
Specification
Overall
machine weight: Approx 15KG.
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Please note:
If you most time want to listen by coaxial input, we advice you buy
a professional coaxial cable for DAC3SE,( DAC3SE no stock coaxial
cable), you can buy our Canare coaxial cable with DAC3SE together
can save some shipping cost or buy other brand coaxial from other
shop.