look man, this whole USB fixer thing is a fad. 99% of dacs now adays are ASYNCHRONOUS, meaning the incoming data clock is irrelevant. the power and ground can be an issue for sure, which is something the intona solves as there is no easy form galvanic isolation for usb2.0
Whats next in line? we are going to have line level signal reclockers when going into an amp? what about a reclocker after coming out from the amp? This stuff is just silly audiophool stuff. This usb fad will pass soon enough
what you are hearing when you put the regen in your system is confirmation bios and group think.