Connecting a PC or Mac
By connecting a computer to the USB port (USB-DAC) on the rear panel of this unit using a commercially available USB cable (supplied), this unit can be used as a D/A converter.link
Before USB connecting this unit to your computer, install the driver software in your computer. link
Download the driver software from the HD-AMP1 page of the Marantz website.
Use a cable that is 3 m or less to connect to the computer.