You are most welcome sir. From this experience, looks like the trick for the DIYINHK driver is bypassing the digital signing, win7 and win10.   Could you please share some of your listening results as well? It seems your setup and mods could push your X20u to reveal much more detail. For my...

  I installed the "DIYINHK USB Audio Driver v3.34", and it does support native DSD256 on X20U.   This is how I installed it:   1. uninstall existing xmos driver. 2. "buy" the DIYINHK driver for $0 and unrar it. run the setup.exe from the unzipped folder. 3. "next" all the way till it says...

I actually upgraded from HD595 to Q701, and I love it. Their signature share some similarities: neither of these headphone have very boomy base, they both have a bright sound and wide stage. If HD595 have served you well, I think Q701 will simple do a better job. To me the...