maheeThat's in case you want to connect a power supply in balanced mode.
Yes, I'm joking. Please don't anyone ask me where to buy a balanced power supply :)
wondroushippoPossibly. We would need to look at the product manual about that.
Still, in the product page: http://www.smsl-audio.com/productshow.asp?id=144
I see a 5V 2.5A PSU included. Quite the overkill for "1.5W" consumption, unless the 1.5W is some kind of error.
edit: the overkill is for a couple of reasons
maheeI know this was asked a long time ago, but seeing as how there is no answer here currently I figured I would chime in. It's for the M8 DAC. The M8 DAC comes with a shorty DC bridge cable that plugs into the DC2 port on this amp so you can power both with one cable.