vkalia
500+ Head-Fier
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- Aug 18, 2013
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Right now, the safe choice if Apple's Lightining-to-USB Camera adapter shown here, combined with whatever USB cable is needed to connect to your DAC of choice.
http://store.apple.com/us/product/MD821ZM/A/lightning-to-usb-camera-adapter
Also, Apple updates their iOS periodically, and this mode of operation is undocumented and otherwise unsupported on iOS 7. Future iOS updates might break the capability, and I myself have only checked performance on iOS 7.0.2 for my chosen DAC. To be safe, you can turn off Automatic Downloads on Updates on your iPhone 5s under Settings -> iTunes & App Store -> Automatic Downloads. Then check to see whether someone with the iOS version you want has tested compatibility, or if you want to be totally sure, go to an Apple Store and check yourself (I've done this before at a local Apple Store, hooking up my own DAC to an iPhone there, and they were totally fine with it), and update if you get the compatibility you need.
Thanks, Jazzman!