OPPO Digital UDP-205 UltraHD Blu-ray player

[JohnAV]

Originally Posted by HDTV1080P

In regards to the OPPO UDP-205, It would have been ideal for the HDMI audio jitter reduction circuit was placed on both HDMI outputs and not just HDMI output number two. For example the “pure audio” button on the remote control will turn off the players video processing and then HDMI output one will only output audio only. Perhaps there is some technical reason this could not be achieved.[

They said why in the above article:

However the use of multiple PLLs degrades the quality of the video clock in comparison to the original master clock. Fortunately, the UDP-205 has two HDMI ports: an HDMI 2.0 port supporting all video formats including Ultra HD, and an audio-only HDMI port. Since the actual video can be carried over the main HDMI 2.0 port, OPPO engineers can completely discard the original video clock on the audio-only HDMI port, and replace it with a dedicated high stability and ultra-low jitter master clock.