It's more about the power on the cable coming from the computer. When the signal enters into the IUSB it is separated from the power on the line, regenerated and then sent to the decoding devise. In this case it is the Dual core. Many users are very pleased with what it does, the sound is fuller and much better detailed. I don't currently own one, but I have had the privileged or hearing the difference of what one can do at a friends house. I'm on the list for the next shipment.
http://www.ifi-audio.com/en/iUSB.html
http://www.audiostream.com/content/ifi-iusbpower-taking-audioquest-draginfly-dac-notch
http://www.digitalaudioreview.net/2013/01/amr-ifi-iusbpower-review/
Enjoy,
R
http://www.ifi-audio.com/en/iUSB.html
http://www.audiostream.com/content/ifi-iusbpower-taking-audioquest-draginfly-dac-notch
http://www.digitalaudioreview.net/2013/01/amr-ifi-iusbpower-review/
Enjoy,
R