原帖由 maxwelx64 于 25-4-2009 12:15 PM 发表
i think that if put the volume knob between source and amp...
the noise from the volume knob can be amplified too...
hence the volume control placed at between power amp and the speaker will be bet ...
这是所有的设计与匹配 问题.
不是每个AMP可以做到这一点.
DAC output 6V Peak to Peak = 2.2V rms. After attenuation, signal = mV range, close to noise floor => signal/noise -> amplified |