Like I said, I know the specs say it does but I doubt it. Recently I asked the question on the Computeraudiophile forum about the Wyred4Sound DAC's for which the specs also said it has the galvanic isolation and the designer answered here: http://www.computeraudiophile.com/f6-dac...post500660
Since there were no standard off the shelf USB high speed isolators (so a galvanically isolating 'bridge' with USB in and out) until very recently designers would have to develop it themselves. Both difficult and expensive so no one did it and instead did it like described.
Silanna was the first to integrate this into an IC. Intona did it using two FPGA's and a lot of other parts.
http://www.silanna.com/usb.html
Quote:The DSDse USB interface is fully galvanically isolated but this is after the USB interface which is why power to the USB input is needed for the product to operate. Inside the dac is where the galvanic isolation happens on the I2S lines that feed the DAC.
Since there were no standard off the shelf USB high speed isolators (so a galvanically isolating 'bridge' with USB in and out) until very recently designers would have to develop it themselves. Both difficult and expensive so no one did it and instead did it like described.
Silanna was the first to integrate this into an IC. Intona did it using two FPGA's and a lot of other parts.
http://www.silanna.com/usb.html
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