XBOX consoles do not support USB audio
Well mate, we both know that Xbox runs Windows. Well look the
video, there will be the confirmation about the licensing stuff... it is an artificial limitation. I wan't to to have my cynical look under the AE-9 cover also.
but the AKM AK4377 is a DAC
Sure, it is a part. Motherboard also resides a combo DAC, so we should call it also like that? ANY Realtek controller resides it as a module block, yet it doesn't define what really it is.
It is a custom DSP, the thing Creative does for years and is good at it. How you further drive your data, via DAC or route it only digital via HDMI for example, is another story. Your fine devices like Fiio does doesn't have the balls to make such custom made silicon really. It is fine at the HW end section, okay, but this device is something else. It reeks VR really. Custom tailored settings for each owner, it is needed actually, because we are pretty different physically. It is HW mode DSP. Very complex actually... it needs so much field experience. XMOS does have DSP features on the paper, but nobody boots the code to use them really. Everyone and their cat utilizes same china driver code for them.
So basically they are relatives, but not the same thing.
I also wonder... from where those 20 years came from? Sound Blaster is already 29, and the company is like 33 years old? The X-FI is near 15? That's a tough one.