iMac Pro connect to AV receiver
I’m trying to connect my iMac Pro to an Onyx 676 receiver. I am using a USB C to HDMI cable from Amazon. A couple of questions. Does the iMac output surround sound (I’m trying to mix with Dolby Atmos) through the USB C port? Should I invest £75 in the APPLE USB-C to HDMI Digital AV Multi-port Adapter? Anyone with any advice or information I would be very grateful. Thank you.