I saw on the internet that it is possible to buy an otg cable for the galaxy s2 and then use externalkeyboards, hard-drives etc, so maybe it is possible to use an external dac with usb input? If someone have the galaxy s2 and willing to try this I will really appreciate it.
i know for a fact my nokia N8 USBOTG outputs 12s to an external USB Dac so here's an idea for u. bring your Dac to the cellphone store & test out the galaxy II in the store itself. its even easier if u have a porty DacAmp like one of the iBasso units. if its anything like my nokia N8, it'll identify the usb device as recognized & show the usb link on the phone. otherwise, a popup will state that its not a recognized usb device.