Connect your MacBook using HDMI. You'll either need a USB c to HDMI adapter, or display port to HDMI adapter, depending on which MacBook you have.
Trying to accomplish the same with outputting high resolution audio from my MacBook Pro to a Marantz. How did the HDMI solution work out? I am thinking of just trying a 3.5 mm to stereo RCA cable and outputting from the headphone jack to the Marantz. Would love to hear how HDMI worked out and if it is passing up to 24/192? Thanks!Thank you for the reply. Will try this out.