I emailed Burson the following question:
Can you tell me about the USB input on your new DAC/PRE/Head -- the 160? I'd like to know the specifics about the implementation of the USB input?Here is the response I received:
Our USB receiver is in adaptive mode with jitter correction. It works in PC, Mac and Linux environment and accepts audio files with resolution up to 24bit / 96khz.
Best regards,
AlexIf the receiver is in adaptive mode, doesn't that mean it is
not an asynchronous implementation?

I have owned wonderful DAC's some of which use asynchronous USB and some which do not. I have no doubt this is a great DAC. But for someone who only uses USB I'd like to know about it, one way or the other.