DAC-100
Upgrade to Discrete OPA
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 DAC-100
Technical characteristic:
In DAC-100, all resistors used are of DALE brand.
Film caps are EVOX, also known as "RIFA" previously, they are more
dynamic and detailed in character, and also a lot more musical.
Electrolytic caps are specially ordered by us from NOVER, it is an
English brand, we place the order, and NOVER makes the caps to suit
our requirements. These caps sound very neuter and neutral.
The USB processor employed is PCM2707, we don't use PCM2707 inside
D/A processor, it outputs I2S signal to AD1852.
The coaxial input processor is DIR9001, the least jitter chip
currently; jitter only at 40PS, while CS8416 jitter is 200PS!
DIR9001 can run in 24 Bit/96KHz sample frequency range.
DAC-100 uses a 50W R-transformer; high performance R-transformer can
help to make the sound of the DAC more detailed and musical.
In DAC-100, the R-transformer and diodes are separated from main
board and has shield of metal board, as a result the RF and
50Hz/100HZ cannot affect the signal circuits, keeping the sound at
its best.
DAC-100 uses four groups Parallel Stabilized class A Voltage Supply;
it is just like the single class "A" Stabilized Voltage Supply,
which keeps the power supply more pure, resulting in low noise.
These Parallel Stabilized Voltage Supply offers power supply for
each part of DAC-100, making each part work at its optimal.
DAC-100 uses AD1852; it has a 24 Bit/ 192KHz sample frequency range.
But after through listening and comparison, we found the AD1852
works best on 24 Bit/96KHz (although the input data is 16Bit/44.1K).
AD1852 has an excellence digital fitter, so the output analogue
circuit used can be simple, simple analogue circuit helps in keeping
the phase distortion at its lowest, making the sound more focused
and detailed. End of analogue circuit, we use group cascade FET
buffer, with output impedance of only 22 ohms.
DAC-100 input: USB1.1 and 75 ohms coaxial.
Output: 2.5V RMS.
Frequency bandwidth: 20Hz-20 KHz (+0,-0.5DB)
Package
weigh:
About 3KG
Size:
150(W) 60(H) 210(L)
Price:
USD245(Use OPA2134)
USD265(Use Discrete OPA-EARTH extension lead)
Tone
Features:
While
Connected to computer, If you love the sound to have a bit of warmth
and softness, I advice the use of Beoplayer4.65, you can also try
other players, they will have some difference.
If
you want to upgrade the Discrete OPA inside, please follow the link
below, DAC-100 can use extension lead OPA.
http://www.audio-gd.com/enweb/pro/diy/OPA.htm
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