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DI-20HE

(Regenerative Power Supply Digital Interface)

 

Built in Amanero USB interface and isolator , Support up to PCM384K / DSD512

Built in FPGA S/Pdif input support up to 384K/DOP

ACSS /Class S/Pdif output support up to 384K

R core and 13 groups ultra PSU linear power supplies

Applied FPGA, support SQ upgradeable,in future only want to connect the PC can upgrade inside hardware configure

FPGA firmware design by audiophile,the codes most consider by the SQ but not function

Price : (Exclude shipping cost)
Accusilicon 90/98M Edition:USD988

  

  

     

   

 
Summarize Use Manual Specs Custom Option Shipping Cost

Please Note:
1,Because the electric parts price is increasing crazy and very long leadtime , especial the CPLD and FPGA chips which is apply in the DI-20HE that the price is increasing to 500%  and over 24 week leadtime now ,we have less chips in stock, we had to only sale the DI-20HE to Audio-gd DAC users , we don't warranty it can work with other brands DACs.

2,The DI-20 had built in ultra speed isolation, for work most stable, don't connect external USB isolation , just let the USB connect to computer directly.
     There are a lot different IIS definition exist with other brands , we only warranty work with our DACs, we can not warranty work with other brands.

Click to download the driver
(Only for WIN, other operate systems without driver install necessary)
Amanero combo 384

Please note : 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.


Accusilicon clocks:

       

Please note :
1, The product price is expensive , we suggest the customers have the R-8 or R-27 or higher grade DACs , then consider if want to purchase . If the product connect with the low grade DACs, can not show its real sound quality level .
2, The product without  power cable, customer want to has the high quality cable for it .


Feature:
1, Built in regenerative power supply as built in a private power generator ,it built
with pure class A PSUs and pure class A full balanced drive amps.
2, Built in the Amanero USB interface that is the most compatible and steady ,during test ,click and change the music track random without any hang , support WIN, OSX, IOS and Linux , and had been test with some TV that is based on Android system. (Has not test with Android phone yet ).
3, Built in 10MHz external clock input connector .
4, Built in main clock/ Wck output connector, the output clock type can set by user.
5, USB and Coaxial input (support DOP) can conversion to HDMI-IIS and coaxial output . The coaxial input and output interface had designed in the FPGA but not built in the USB chip, due the high speed of the FPGA so can improve on sound quality and support up to 384K.
6, HDMI-IIS output can set the definitions of PCM and DSD through the display menu .
7, built in the best sound R core transformer and  13 groups ultra PSU become double stage power supplies, supplys to the different signal parts separately .
8, Built in the 150M high speed isolator between USB interface and FPGA signal processor. Because the isolator can effect the data and clock transmit, so the FPGA has corrected the timing to improved on sound quality .
9, The USB inteface and FPGA processor have applied the same clocks for avoid the different clocks effect the sound quality .
10, 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 data process and transmit, that can avoid the effect of clock stability .
          The USB input and the S/Pdif decoder output 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.
11, Full new configuration clock manage design built in, improved on the clock timing .
12, 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 .
13, Built in USB firmware update button and FPGA firmware update connector, update firmware without open the unit, and support sound quality upgradeable in future.
14, 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-20 built in multiple strong drive ability chips to drive the different data and clock, to reduces the effect during transmit .
15, The 2nd generation ACSS SPdif output design that is invent by Kingwa, which offers even further reduced signal degradation and better sound quality over a coaxial cable . The DI-20 also design standard coaxial output connector, with built-in silver wire isolation transformer.

  

 

Pure analogous Regenerative power supply introduce :
        The regenerative power supply like a proprietary electric generator built in the unit.
        It can block most disturb from the power line , supply the ultra clean power supply for the audio amps , reproduce the most neutral and analog sound like audio signal for the system and the users.
       In the regenerative power supply design, the AC power through the regenerative input transformer , conversion to DC power ,through the class A PSUs power supply for the regenerative wave generator and driver stages .
       A balance regenerative regular wave generator produce the ultra low distortion 50Hz wave ,through the balance  gain amps and the strong  output stages , drive the regenerative transformers produce the clean AC power supply feed to the separate class A PSUs power supply for the L and R channel preamps .
        The class A parallel connection PSU has very high input impedance to avoid disturb through the PSU from affecting the signal parts and low output impedance with very fast speed and high linear,  it is a very clean power supply.
         Audio-gd on the regenerative power supply design points  :
         1, Through analyzed the AP SYS-2722 ,do a lot practises ,test and listen , full analog design of the regular wave generator have much lower distortion than the digital generator.
         2, Digital drive stages have higher efficiency , but full analog drive stages have much better analog sound like .
         3, 400Hz regenerative wave have higher efficiency , 50Hz regenerative wave had much far away the human ears sensitivity area than the 400Hz, boost the sound have much better analog sound like.


 

 

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