Wisdom in mind,   enthusiasm at heart.

NFB-2 (2014)
Dedicated Discrete DAC 

32bit / 384K Asynchronous Transfer  USB-32 Chip
Built in 2 Pieces Hi-end grade WM8741 Chips

The rule of the power ON /  OFF:
Power On :
     Source power ON ---->  NFB-2  power ON ----> Amp power ON ( preamp , headphone amp and integrated amp )
Power Off:
    Amp power OFF ( preamp , headphone amp and integrated amp ) ---> NFB-2  power OFF ---> Source power OFF .

Setting button:
Choose between RCA and ACSS signal output configure, Push into is the signal configure for ACSS output, Pull out is the signal configure for RCA output.
No matter what mode is selected , the NFB-2(2014) still output from ACSS and RCA sockets and the signal only working with ACSS technology for the most neutral sound .
If the ACSS sockets connect to an active ACSS amp, the RCA signal will mute automatic .
　

Selector button:
Select the input modes of the NFB-2(2014) .    1 : USB input.     2 : Coaxial input.    3 : Optical input.

Please note : The BNC and RCA coaxial input can not connect source at same time .