Amarra Symphony with iRC

[Umetaro]

I'm using a Windows PC which is working fine without Amarra. Amarra was created because iTunes is not able to output bit identical data. This is not a problem in a Windows PC using WASAPI.

iTunes can now output bit perfect data so does that make Amarra redundant or does it somehow magically improve the sound i.e. make it better than bit perfect 

I wouldn't say magical improvement but I find there is a noticeable sound improvement with Amarra-Ethernet AIR over iTunes-Ethernet AIR.