This unit is not for the faint of heart considering the cost. I am pretty sure there are many hidden bugs. Here is a quick list from the first 30 minutes. I maybe doing something wrong, so please factor in learning curve.
1. Internal test tones did not work
2. While playing CDs, when you select the next track there is a brief static during transition
3. For DSD sources (Dire Straits Brothers in Arms SACD) with Oppo streaming to the AV-40, in stereo mode, I could still hear some leak into surround channels and clicking static. SACDs essentially will be unusable until the next firmware update. Hope it is just a FW update. Note that this is only for SACDs
No issues with video so far. Roku UHD works fine. Oppo video works fine.