I highly recommend getting an external DAC for the S3. I have the US AT&T version and I use a FiiO E07K with it. Also for anyone that's wondering, iBasso makes a short patch cable that connects directly to the USB DAC from the USB port on the S3. YOu can get it here: http://www.ebay.com/itm/USB-Mini-B-to-Micro-B-Android-4-0-Above-OTG-cable-4-5-inches-By-iBasso-Audio-/111036655521?pt=UK_MobilePhones_MobilePhoneAccesories_MobilePhoneDataCables_JN&hash=item19da4ce7a1.
That is the best cable for the job and it took me forever to find the right one.
So the Fiio E7 will work as an external DAC for the S3 with this cable? I am considering buying the Fiio E7 to pair up with my S3.