Does this dock provide a lossless audio output via the 3.5mm headphone jack & does it bypass the DAC in the iPhone?

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    This is partly an answer and partly a question (in the "is this right" vein).

    To get high-resolution audio (e.g. lossless) you need these things:
    1) hi res audio source
    2) ability to put it on your iPhone
    3) ability for you iPhone to send the signal out to an amplifier
    4) ability to convert it to analog to play on speakers

    Let's assume you've solved 1 & 2
    3a) can be solved by a high res music player like Onkyo HF, it claims it can handle 192k/24bit music and even higher
    3b) I think if you connect an HDMI cable ($49) you theoretically are bypassing the DAC so you should also be putting out 192kHz sampling ... reality is that the Apple iPhone and iPads are limited to 48k (boo!)

    4) I use my home AV receiver, Marantz 5000 and Martin Logan speakers ... even though not 96 or 192k, it sounds great!

    Does this make sense? Do the other experts agree?

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  • The lightning connection protocol is digital-only. Any lightning peripheral cable that provides audio output does so with an external DAC. It would produce lossless audio with this external DAC contained in the dock.

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