Quote:
The audio signal from the dock connector is a digital signal, so changing the volume on the ipod won't do anything.
|
No, it isn't. The audio output of the dock connector is an analog fixed-level preamp output. There are also data pins - with the proper hw and fw, an external device can access the files on the hard drive and convert them externally to analog.
Up until recently, the BMWs couldn't convert Apple files, so the analog out was needed to go into the headphone jack.
The dock connector audio does sound better than the iPod headphone jack audio, into a preamp input.