Creative should bring out a version of this just for headphones. I’ve looked at the current Creative super XFI USB DAC/Amp specifically for the purpose of surround virtualisation for headphones in a regular AV system and it simply won’t work as it has no HDMI input, instead relying on something like a Windows 10 device running Dolby Digital Live audio drivers and connected to the DAC using USB.
Ever since AV receiver manufacturers stopped including Dolby Headphone DSP mode about 8 or 9 years ago there’s been a gap in the market for something like this.