USD648 ( Exclude shipping cost)
Two chassis versions available,
customer must inform while place the order ,otherwise we ship the
Built in Accusilicon 90 and 98MHz clocks:
Click to download the
(Only for WIN, other operate systems without
driver install necessary)
The product has built in Amanero USB interface, it's
USB can compatible well with the WINs, Apple OS/IOS and
computer type Linux /Android (Include PI,ROCK64, newer model Android
phone and TV) but we can not promise it can compatible well with
the non computer based digital transports' USB output.
The DI-24 had built in
ultra speed isolation, fully isolate the USB and clock inputs to the
all outputs, don't need connect external
USB isolation , just let the USB connect to computer directly.
There are a lot different IIS definition exist with other brands ,
that need set on the front plate to match with the DAC IIS input
definition . Customer also can send the definition to us ask how to
set or set before ship.
What's new feature in DI-24:
1, Built in 50 and 75 ohm external clock
input ports , for compatible with the external clock model output
impedance (remove the spdif input feature of the DI-20HE, became the
75 ohm clock input feature ).
2, Built in 10MHz clock generator .The FPGA
design the clock processor for reduce the jitter and phase noise, 50
and 75 ohm clock output ports that can work as an external clock ,
feed the 10MHz signal to the DAC. The clock outputs can switch
between internal clock and external clock by user set on the front
3, Fully isolator built in , not only the
USB input with isolation, but the external 10MHz clock input with
the isolation , through the isolation output connect to the DAC that
can reject the power interrupt .
4, All output circuits power supply by pure
class A PSU for get the better analog feeling sound, USB interface ,FPGA
and clocks power supply by 4 groups DC serve power supply and 5
group ultra speed linear PSUs.
1, Built in high performance linear power supply .
2, Built in the Amanero USB interface that is the most compatible
and steady ,during test ,support WIN, OSX, IOS and Linux , and had
been test with some TV and phone models that is based on Android
3, HDMI-IIS output can set the definitions of PCM and DSD through
the display menu .
4, built in the best sound R core transformer and 11 groups
ultra PSUs , supplys to the
different signal parts separately .
5, The USB inteface and FPGA processor have applied the same clocks
for avoid the different clocks effect the sound quality .
6, FPGA data process mode can select either parallel or series mode
The USB output IIS data is series transmit
mode, every data must need one clock cycle to process or transmit,
one frame data ( Include L and R data) must need 64 clock cycle to
process or transmit, so the data has effect by the 64 clock cycles.
But the parallel data process
and transmit mode only need one clock cycle can finish the one frame
and transmit, that can avoid the effect of clock stability .
The USB data has recombine become dual 32bit parallel data
once input , and the DSD input has
recombine become dual 64bit parallel data once input.
The parallel process and
transmit mode can improve the sound quality on the transparency and
detail but still analog.
In the parallel process mode,
all data processing by 256fs clock frequency, but not the usual mode
that different sampling music data with 64-256fs variable clock
frequency. The fixed 256fs clock frequency makes the signal has more
exact timing in phase,
process with same timing to keep the sound flavor is same.
7, The display can show the sampling of PCM and DSD, and it can as
the interface between human and machine, allow user change the
setting in the unit .
8, Built in USB firmware update button and FPGA firmware update
connector, update firmware without open the unit, and support sound
quality upgradeable in future.
9, The digital data and clock even more easy effect by transmit
than the analog signal, cause the DAC sound worse even can not work.
So the DI-24 built in multiple strong drive ability chips to drive
the different data and clock, to reduces the effect during transmit