DAPpower
Headphoneus Supremus
If you don't know, it is not a stupid question. It is more stupid to act without knowing and not asking.
The coax output is a digital output to another dac system. The DX320 would act as a storage unit for the music to an external dac via the coax cable. The line out is using the DX320 dac system put out an analog signal to an external amplifier, be it portable or a desktop system.
Thanks, that makes more sense now.
To be honest, I'm quite surprised that iBasso didn't supply us with a interconnect 4.4mm line out cable with AMP12 but I guess it shouldn't cost too much to get one from Amazon.
I was thinking about experimenting with my modded AMP12EXN-S with my new FiiO R9 since I love the sound of my DX320 already.