Vicdamone, Thanks for the tip.
Williewonka, old are Cat5. New according to AQ website, Cat7, 300 MHz??. There's enough bandwidth in Cat5 100 MHz so don't think bandwidth is why AQ is superior. I'm only running AQ from router to DAC.
My setup is very very simple. Music store internal hard drive. Running PS Audio or Logitech Media Server (can never get JRiver to sound good on my machines) on my computer. Use Lyric app on iphone for control.
I have a modest level system but high enough resolution where I can easily detect direction of a fuse. Every parameter improved, detail, resolution ... but most obvious is 3D, better separation between images in soundstage where I'm hearing new things in familiar recordings, some hi-rez no longer sound light weight ... just PRAT.
I had whole family over last night and they couldn't believe all I changed was a stupid Ethernet cable.
I don't know your system but only way to know is to HEAR it in your system.
For an audiophile, removing anything from Home Depot is always a good thing. LOL!!!