CAST (Current Audio Signal Transmission) file download:(Files1-6)
http://bbs.audio-gd.com/dispbbs.asp?boardid=7&id=10497&star=1#39123 
Sound Characteristics: Deliver a neutral and slightly sweet sound with well expressed dynamic details. Recognized and supported by the users.Strong analyzing ability and this enables our users to get a clearer and more detailed musical effect.

DAC-19SE  Technical Features:

Using DIR9001+PCM1704UK+SATRI module

The OPA2134 only a DC serve, keep output offset around 0VDC.

Overall machine net weight: Approx 8KG.

    Circuit diagram
    Specification

   Different of PCM1702K and PCM1704UK:

Use PCM1704*2 can have more dynamic and clear.

Use PCM1702*4 can  let the sound be warm.