CD 6004 with iPod connected via USB - Marantz DAC or internal iPod DAC used?
The world of digital HiFi and connectivity moves on at fast pace, and I sometimes wonder whether this is of benefit to the masses at the expense of the listener in pursuit of hi fidelity audio. I am very much a CD/Vinyl man, but my less-discerning wife does like to download music and use her iPod.
In this vein, I have been pondering. Firstly the question of which this thread is entitled. I seem to find conflicting information when I try to find out whether the Marantz CD6004 will take a digital stream out if the iDevice, merely using the iPod as a hard drive for the digital content, and allowing the much higher quality DAC in the 6004 to perform the processing. Or does is simply take the analogue signal (post processing) from the iPods internal DAC? Anyone know for certain what the case here is, or can find out?
Superfi suggest when talking about the iPod connectivity: 'Thanks to the upgraded power supply and only choosing customised audio components, there is no loss of sound quality as often happens in inferior products due to the power needed to charge the iPod. With a new amplifier and digital to analogue converter (DAC), the new CD6004 ensures a pure audio signal path to get the most from your music'. That little speil suggests the iPod data is taken onboard digitally, bypassing the iDevices own DAC
Elsewhere I have read that a digital stream cannot be taken from any iDevice via a USB lead.
On another ponder along the same train of thought, assuming the Marantz receives the analogue signal post on-board iDevice DAC, would a better method of playing the content (in terms of SQ) be to do away with the hardwire and stream the music over airplay to my AVR... As I assume the wireless connection sends the song in digital packages and utilises the DAC on the AVR to perform the conversion. Of course I am assuming perfect wireless conditions here: strong WiFi signal and no loss of information transmission.
I guess the long and short of my ponderings are whether one or both methods I describe bypass the iDevices on board DAC, which is something I would like to do, as I cannot see the iDevices onboard DAC being as good as either the ones in my AVR or CD6004.
Any thoughts or contributions welcome!