I have an Oppo UDP-205 that I use with a MacBook Air, via Audirvana Plus. I simply use the HDMI output on the Mac into the HDMI input on the Oppo. Works fine for me very time. Suggest you check the Audio MIDI Setup in the applications folder.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.