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High Speed USB DAC?

A recent article in Stereophile ( July 2011, page 45 ) indicates better sound may be achieved when a USB DAC is on a High Speed USB bus.

I have a PS Audio Digital Link iii. My Mac Mini, using as Music Server, will only recognize the USB Audio Codec ( PS AUDIO DLiii ) on the Non High Speed USB Bus. I've contacted PS Audio and they don't seem to have a clue about this. Anyone know if this device is capable as a High Speed USB device? Am I wasting my time and won't see any realistic sound improvement?

Thanks in advance
giantsfreak

Showing 1 response by audioengr

audioengr
3,282 posts
 
If the change is from USB 1.1 to USB 2.0, then it probably means that the USB interface changed from adaptive to asynchronous. This means that the computer instead of "pushing" data to the device, the device is now "pulling" data from the computer. This establishes a master clock in the device.

Steve N.
Empirical Audio
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