Recently there is for the iPhone from Mod. 4 IOS 7. Now you can the iPhone with a Camera Connector Kit (such as an iPad) connect the rDAC via USB. The iPhone is instantly recognized and brings the music files digitally without detours in the converter.
The rDAC had always been, especially connected via USB to the PC, a class of its own. But what the rDAC
now passes to the amplifier and the speakers, is simply stunning.
The sound is again a bit better than on the PC with ASIO driver and J: River as software, at the same files.
Perhaps it is because the PC for a clean sound a driver as ASIO or WASAPI benötig? !!