Got the HA300 today and listened for an hour or so. That thing does so much right and so much wrong at the same time. It's almost heartbreaking. I love the idea of having the best of both worlds (a dap and a dac at the same time) and while the dac is working great with my iPhone 5s and the SQ is great, i just can't understand why Onkyo is not supporting ALAC when using the HA300 as a DAP with a MicroSD Card. I mean, they implemented a direct iOS Support, so i don't need that CCK, but at the same time they won't allow a Mac User like me, who has all his music in iTunes in lossless ALAC, to play his ALAC Files on the HA300.
So i am currently loading all my DSD and 24bit FLAC's to my other MicroSD Card in order to play some Music with the DAP Function of the HA300. I will see how this turns out, try to keep you Guys updated.