HP/PRE : For select the unit output from headphone sockets or the XLR /
Selector : For select the unit input channels.
(The input 4 had both
BNC and RCA sockets, but at the same time only can connect either )
Volume: For change the volume of the unit.
DAC/PRE button: For select the unit as DAC output With volume
control or Fixed level , without volume control output from
the XLR / RCA sockets on rear .
The display auto dark : Push
into the jumper is auto dark .Please operate the jumper while the unit
power off .
Digital filter setting¡G
IIR0 and IIR1¡GAvailable for DSD input .
47K Push into
50K Pull off
60K Pull off
70K Push into
FIR ¡G Available for PCM input.Please operate
while the unit power off .
Fast roll-off, Linear: Push into Push
Slow roll-off, Linear: Push into Push
Fast roll-off, Minimum: Push into
Slow roll-off, Minimum: Push into Pull
Fast roll-off, Apodizing: Pull off
Fast roll-off, Hybrid: Pull off
DSD / PCM support from I2S input
The DSD/PCM support not only from the USB input, but the I2S input.
The NFB-27 can detect the I2S input signal, if input DSD signal, it will
auto to remove the DSD pop noise while select the DSD track .