@antigrunge2, I have two AudioQuest Diamond USB cables, and one is .7m and the other is 1.25m or so. I’ve had the long one going from the Phoenix to my DAC so far. Just to see the effect, I swapped the longer and shorter USB cables, with the shorter one going to the DAC instead. Sounded terrible! All closed up and compressed like how the Phoenix first sounded. I then tried going straight from my Zenith to my DAC alternating between long and short USB cables to see if I could hear any difference. I could not.
This hobby is black magic; nothing makes sense. It’s all trial and error I guess…
My next experiment was to try replacing the short AQ Diamond from the Phoenix to the Zenith streamer with the crappy USB cable that came with the Phoenix, and I’m sure it sounds better! All the detail and a little more relaxed in the high frequencies. The crappy cable is a bit longer than my short Diamond cable. Maybe the Phoenix doesn’t like my .7m Diamond as much…. Not proven yet, but while the DAC and Zenith didn’t seem to care about the long vs short USB cable, the Phoenix appears to not like shorter cables with on input OR output, at least in my system.