Are you using the 5.1 analog in (multi-in) setting on the Rotel? If not you are decoding the sound in your blu-ray and then re-coding/decoding in your Rotel. Probably a 10-15ms delay.
Make sure you have the sound settings in the Oppo right (i.e., HDMI audio OFF), etc.
I'm watching a PBS show right now and the audio is off. Fortunately, my Marantz AV8801 has a delay feature in the audio menu. 12ms delay did the trick.
Make sure you have the sound settings in the Oppo right (i.e., HDMI audio OFF), etc.
I'm watching a PBS show right now and the audio is off. Fortunately, my Marantz AV8801 has a delay feature in the audio menu. 12ms delay did the trick.