Think I know the answer to this question before I even type it, but hey, why not throw it open to the wider audience?
I've read comments / reviews in the past which states the SQ of Airplay is not as good as a direct connection, but if I'm being honest I'm struggling to tell the difference. Listening to a lossless rip of the new Vangelis CD "Rosetta" (IMO excellent and recommended if that's your style), I couldn't really tell any difference between iTunes + BitPerfect playing the album through my DM10's 'D1' optical input and the same lossless files streamed from my iPhone to my AEX connected to the 'D2' optical input. The volumes on the two inputs are individually adjustable, and in the interest of making the test as valid as I could I used a 440Hz tone to level match them. Source switching was completed by one of my unwilling assistants (aka one of my teenage sons) so I didn't know which was playing.
Maybe I didn't hear a difference because connecting the AEX and the MacMini to the DM's digitally has the effect of leveling the playing field. Maybe my hifi system doesn't have the resolution to show me the differences. Maybe I don't know how to listen. Maybe I'm deaf. Or maybe, just maybe, there's basically next to sod all difference.
I've read comments / reviews in the past which states the SQ of Airplay is not as good as a direct connection, but if I'm being honest I'm struggling to tell the difference. Listening to a lossless rip of the new Vangelis CD "Rosetta" (IMO excellent and recommended if that's your style), I couldn't really tell any difference between iTunes + BitPerfect playing the album through my DM10's 'D1' optical input and the same lossless files streamed from my iPhone to my AEX connected to the 'D2' optical input. The volumes on the two inputs are individually adjustable, and in the interest of making the test as valid as I could I used a 440Hz tone to level match them. Source switching was completed by one of my unwilling assistants (aka one of my teenage sons) so I didn't know which was playing.
Maybe I didn't hear a difference because connecting the AEX and the MacMini to the DM's digitally has the effect of leveling the playing field. Maybe my hifi system doesn't have the resolution to show me the differences. Maybe I don't know how to listen. Maybe I'm deaf. Or maybe, just maybe, there's basically next to sod all difference.