Intona Isolator + Reference Cables. And keep the cables as short as you can. If your setup allows it, the Uptone USPCB can be quite effective, too.
Best USB cable upgrade for around $1000
I am looking to upgrade the usb cable between my Hifi Rose music streamer and my Benchmark dac. I have used usb cables in the past from Chord, Black Cat, Curious, and countless others. I am currently using an oldie but a goodie (RDA Poiema R-3). It is a great cable and I will probably never part with it, but I have the itch to try something new. I have been looking at the following cables: Mad Scientist Black Magic Ultra, Sablon Audio Evo, FTA Callisto. Does anybody have experience with any of these cables and can offer any insight.