Wavelength Audio USB Spacelator.

Wavelength Audio writes: "So I was doing some testing on isolation of USB DACS today. All the current Wavelength Audio DACs have USB isolation. I am considering making the USB Spacelator. It's a Full Speed/High Speed Isolator so it will work with any USB DAC. The problem with USB is your stereo and computer OR streamer can have either ground loops or differential DC voltage on the ground." 

"Here is a case of ground loop. Standard JTEST done with John Atkinson Miller 16 files. The Purple is without the USB Spacelator and the Red is with the USB Spacelator. Notice almost 15dB of SNR and the spuriea difference (Jitter Error Indicator). Test done on a Prism dScope III Audio Analyzer."