Positive feedback writers Award 2017
JCAT USB Isolator $423
I've been using JPLAY as my go-to computer-based music player/streamer for the last couple of years—it's without a doubt the very best bang-for-your-buck improvement for use with any PC music playback system. In my review of the Sonore microRendu earlier this year, I found that music via my PC and JPLAY came darn close to matching the excellence of the Sonore stand-alone streamer. I keep regular contact with Marcin of JPLAY, and when he told me about his new JCAT FEMTO Network Card—designed to install in your PC and go head-to-head with other streamers (like the mR)—I was really stoked, and totally onboard.
Mother nature had other plans; a massive lightning strike at my new home killed my then PC setup (along with a boatload of other computer and audio equipment). My chosen replacement—a laptop—wouldn't work with the new JCAT Network Card, and when I expressed my regret to Marcin, he offered me an alternative: the JCAT USB Isolator. Essentially a galvanic isolation device, the USB Isolator is designed to remove any noise present in the USB signal, using what JCAT touts as “the world's first industrial high speed USB Isolation technology from Intona”. It's a very elegant looking and well-made device, and after warming up with a week or so of non-stop play—I can't argue with the results.
Nothing I've hooked this baby up to hasn't benefitted from its presence in the signal path—even the off-the-charts good Sonore UltraRendu that's currently in my system. The effect isn't subtle—inserting the JCAT USB Isolator results in deeper, blacker backgrounds with zero noise at any volume level; if you're hearing noise during playback, it's in the recording. Worth every penny and highly recommended; my full review will post to PF soon.