This "plug and play" device cleans up the noise generated by your computer digital stream and filters it prior to the bitstream entering the DAC. It is by far the least costly upgrade for your computer-based system:
https://usbdisruptor.comI upgraded to an ISO Regen+LPS 2 power supply and while it is more efficacious, but it cost 7X the cost of the USBdisruptor. Asking $100 delivered in the CONUS. I do not have the original packaging. The image is a stock image.
