If the gain is 10DB, the source and the signal cable total have 0.1MV noise level, the amp will output around 0.3MV output ( assume the volume is on max position ).
If the gain is 30DB, the noise become 3MV .
The source noise is fixed, the good shield signal cable can have less noise while transfer the signal .
Nowdays, the amp design usually is refer the input signal level around 2V to 3V because most dedicated source have refer this standard , if the source have quite low output , like 0.7V ,the amp can't have enough gain for the large power output .
If design refer 0.7V input level design, while connect with 2V output level source, the volume just turn several steps, the output have very loud .
This is different to the DAC built in amp , Its DAC output level is fixed so can easy design the total gain .
Ok thanks for the clarification Kingwa!
So will there be an difference if I connect it like this
Smartphone---NFB-16(DAC mode)---SA-31---HE-500/Pro 900/LCD-2s,etc
or just simple
Does the NFB-16 in DAC mode has any effect on incoming gain?
Additionally would you recommend me a custom gain setting for this configuration?
Edited by conquerator2 - 10/28/12 at 3:36am