The product page for the M700 has a USB driver download link. What’s it for? The amp has no USB port on it, and the term “USB driver” never even appears in the user’s manual for the amp.
I suspect it is an error. The GCD needs a windows USB driver.
It must be website error, this USB driver link also appears in S300 page.
For Windows PC/laptop, the USB driver is required to perform the music files playback (such as using the foobar apps) from Windows PC/laptop to SGDAC and DSDAC.
Yes, looks like there needs to be quite a bit more site cleanup.