pippin wrote: 
> OK, now here's the link again.
> 
> On the "unaltered" question, the general answer is "yes", but there are
> a few things you have to look at
> >   >   > 
  - Depending on the dock, you might have to set the volume to 100%,
  > although I'm not absolutely sure about this. iPeng itself doesn't
  > manipulate the data or do replay gain calculations but iOS or the
  > dock might do that if there is no analog volume control on the dock.
  > In theory, USB audio supports modes to communicate volume
  > information separately from the actual data (so that the actual
  > stream doesn't have to be altered) and since iPeng only controls the
  > iOS system volume I would in this case expect iOS to make use of
  > this and also keep it's hands off the volume. Actually I'm inclined
  > to believe that it's always doing this since it also doesn't volume
  > control the line-out used with analog docks. So to sum up: I believe
  > the communication will be bit-perfect independent of the volume
  > setting but if you want to be absolutely sure, set the volume to
  > 100%. If you are connecting just a DAC that doesn't have any analog
  > control then you should be able to check this by testing whether the
  > volume control in iPeng has any effect; it should not in this case.
  - you need to disable iPeng's equalizer (the default) or set it to
  > neutral. You can find it under the player settings in "Audio".
  > > > 

Really interesting info there, thanks for taking the time to reply.


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