Wisdom in mind,   enthusiasm at heart.

NFB-3DAC （2015）
Dedicated Discrete DAC built in ES9018
DSD , DXD support from USB
32bit / 384K Sabre ES9018  
32bit / 384K Asynchronous Transfer  USB-32 Chip

Price :  USD499 (Exclude shipping cost)

Click to read    FAQ
Driver download                              USB-32 Introduce
Audio-gd products had design and test based on the AP SYS-2722 (The top-drawer professional equipment in world)


Summarize
Fully discrete analog stages without any OPA and couple caps in the signal channels.
Non- feedback ACSS analog output stage .
Class A power supplies , Total have 7 groups PSUs and 30,000 UF Audio caps for power supplies.
3 channels digital input :  RCA coaxial / Optical / USB
DAC output :   RCA / ACSS