Built In 4 Groups of  DA-8 V2 Modules
Built In FPGA Processor to Reject Jitter 
DSD , DXD 32bit / 384K Support From USB / HDMI
Built in real balanced headphone amp.
Built with OCC and Hi-end parts

Digital Setting Function Introduce (It has effect on digital inputs only):
         The DAC can setting the digital process functions on front plate to change the sound flavors, without open the unit .

        

How to active the digital setting mode:
         The "DAC/HP" and "Input" buttons has dual functions.
         While the input between input 5 and input 6, the "DAC/HP" button can select the output mode between "H" (Headphone output) and "P" (Preamp output) .
         While the input is between 1 to 4, the "DAC/HP" button become dual functions.
         In case, push the "DAC/HP" button one time, the left first display flashing around 3 seconds, in term if the "DAC/HP" button has not push again, the output mode change either "H" or "P".
         If the "DAC/HP" button push again while the left first display flashing, the unit go into the digital setting mode.
　

Important warn:
         Before push the "DAC/HP" button, we are advice user turn  low  the amp volume, stop the music track playing .
         Because for the aim to reproduce the best sound quality, the DAC without mute design , change the setting may output circuit switch sound .
         Around 5 seconds after non any button had push, the display stop blink, user can click the music track to playing and  turn up the volume.

DAC/HP button :
          While the unit had went into the digital setting mode, the one digit display will blink for active the function setting , push the "Input" button can change function .
         While the display blink, push "DAC/HP" again , the right next one digit display will blink for setting .


Left 1st display : Oversampling 
         "O" for select oversampling, "N" for select NOS mode.


Left 2nd display : OS and NOS modes
          While OS setting on "O" mean the DAC working under oversampling mode, lower number OS modes sound became warmer and smoother. Or depend on your sense .
         Mode "0" : class technology NOS mode.
         Mode "2" : 2X oversampling.
         Mode "4" : 4X oversampling .
         Mode "8" : 8X oversampling.

         While OS setting on "N" mean the DAC working under NOS mode, different modes offer different sound features, usually mode 3 is most users favorite. Or depend on your sense .
         Mode 1 : Simplest data process .
         Mode 2 : Data fifo.
         Mode 3 : Fastest data process.

Left 3rd display : PLL
           Active (1) or Disable (0)  PLL for USB and HDMI inputs, we are advice setting Active (1) for the low performance source but Disable (0) for the high performance source, or depend on yourself sense .
　

Left 4th. display : Synchronizer
          If the HDMI input had noise, distortion or some samplings no sound, user can setting the synchronizer ON (1) or OFF (0) to fixed the issue. In default is OFF (0) .

Left 5th. display : Display
         Active (1)  the display auto dark, the display will become dark in around 10 seconds after stop operate any buttons . Disable (0) the display auto dark, the display  light always.

"Input" button:
           While the display non blink, for select the input sources.
          While the display blink, for setting the digital process functions.

Note 1:    ON mean the jumper push on.
              OFF mean the jumper pull off.
              Please power off the unit while change the jumpers for avoid the chip damage by the static electric .
              For safe, user must pull off the AC power cable before take off the top cover.

Note 2:    If the HDMI input signal not enough good, ( it may cause by the source or the HDMI cable quality or the RF interrupt to the HDMI cable), the sound may had noise or distortion or no sound in some sampling, try to push into the jumper on S2 pins.