A long harsh digital trip - final meter?


So the digital signal manages to find its way to a utility pole in front of your house. Then enjoys a coaxial sprint to a modem, and then head over to a modem, router and then into a Roon nucleus. Up to this point, a rugged unprotected harsh trip. And now this signal flows along a very refined ubs cable and arrives at a dac for final prep work before reaching a high end system. 
      So why does the final leg of the signal’s journey inside a usb cable seem to matter so much toward improving sound quality? What happens here to revive a digital signal that has traveled hundreds of disgusting dirty miles to reach the analogue chamber of rebirth? So I guess it’s possible to truly transform and correct a digital signal during a very short journey thru a usb cable?
emergingsoul
I used to think USB cables did not matter. I can't remember the brands but I tried a few including "High Speed" etc....  To make a long story short, I went back to the best sounding one, a very thick well shielded cable that came with a printer for my office 10 years ago. It sounds simply wonderful and I have no idea what it is. The moral of this story is that every cable matters. I could hear the difference even when wanting the new cables to sound good.  If your system is resolving, and you listen well, you will figure out what you like.  
"So I guess it’s possible to truly transform and correct a digital signal during a very short journey thru a usb cable?"

No. 

It's possible to truly transform and destroy a digital signal during a very short journey through a USB cable. 

Many here do so with great flair and hubris.  :) 



Buy a Jcat ethernet Femto card for PC 
for a Substantially cleaner digital signal ,and isolation from 
the Noisy computer environment .
If you use a fiber network, the line is clean compared to copper. Also if you go with the 1G fiber network, the latency is very very low and the bandwidth is huge.
Also, USB is a terrible interface to a dac. As for power cables, I think this is 1 of the most important cables out of the few that you need. Just like dedicated circuits to your audio equipment make a big difference.