I cannot for the life of me find this detail or even the dimensions of the dock connector side of either cable.  Are they the same as the official Apple cable head, thus fitting the iPhone 4 with Apple Bumper case?   Thanks!  

I just bought a Nuforce uDAC-2 and am enjoying it greatly, but this is a new world for me. I am using a MacBook Pro with my DAC, in case that matters. We can control the volume in three places as I stated in my subject line: The application playing the music. The computer OS itself. And...