I need some help explaining what "LO BYPASS" really means for SQ when docking into the E09k? I of course understand that the volume control and equalizer on the E17 won't work when it's on, as the signal is a fixed line out and the FiiO E17 is working in DAC only mode.
But what does it mean to use the E17 as a pre-amp instead? If we don't consider the ability to use the equalizer or volume control, to just have it at a fixed volume (preferably 60/60) as a pre-amp? Is that just bonkers, when I can use it as a DAC only? Is it generally stupid to connect two amps in a serial fashion if you don't absolutely have to?
Do I gain something SQ-wise by using it as a pre-amp?
I would love some input here!