How this benefits the listener
In practice one might connect the SPDIF connector as input from an external SPDIF source (in this case to power the iDSD, no USB source is needed, a 5V Charger will do). The source may be a streamer, DVD Player or some such component.
One may even connect USB and SPDIF together, just remember that playing USB overrides SPDIF.
So let me see if I got it correct:
I can connect my sat receiver via analog audio (using an optical cable I think) to iDSD and the computer via USB; then RCA connectors to stereo amplifier or just plug a headphone on the front panel.
When I turn on my sat receiver, I will get the sound through my ampli or headphone and iDSD will run on battery. When the battery is running short, I can just turn on the computer, but then SPDIF will work as out (or just stop working as input since I have an optical cable plugged in) and it will recharge my battery. In this case USB will be the input, even if the computer is not playing any audio file, I guess.
I can't continue listening to sat until I turn off the computer or until I unplug the USB cable and plug it into a 5v charger (but this will be very difficult since all cable are nicely hidden!).
Is that right or is there a way to continue listening to SPDIF input with USB cable connected to computer and computer on (so as power source only)?
Does the USB port delivers power (and then recharges the iDSD internal battery) even when the pc is off?
Edited by guglia72 - 6/4/14 at 4:46am