I contacted McIntosh. They basically told me it was Aurender's problem
to solve and to use a different output type (i.e. coax, optical, etc.)
They also said the USB input is meant for computers where drivers can be
used to manage the communication; its not meant for media players.
One of the many reasons I sold my C48 a while back, I mean what a load of tosh that the usb input is meant for computers only!
Good job Ayre does not think the same!
Glad to hear Aurender are being helpful and responsive in this matter as a 100H is still on my potential purchase list which has USB output only.