Originally Posted by Bill Mac
Any specific areas of the movie to listen for the distortion?
If you want to hear from real life movie watching/listening on Blu-ray:
The first "dream" sequence @ the beginning, and also the rocket launch sequence, and also the going through the wormhole sequence, and going through Gargantua, and the big wave....
* Set your Oppo 105's bass management so that all your speakers are selected as SMALL. ...Turn the master volume just below reference level; @ reference level you might damage your subwoofer(s). ...And yes, it's the multichannel analog connections that you are using here; that's what the internal bass management in the Oppo 105 is for. ...Not from the digital HDMI connection (or Coax or Opt.).
Strap yourself real good, and listen to your sub(s).
♦ But as Markus just mentioned above you can also verify much easily; his suggestion is the best...most efficient and simple...for confirmation.
P.S. I am not taking responsibility if you damage your sub(s). ...You asked a question, I just gave you an answer; so proceed @ your own risk.
And by the way, 'Interstellar'
is not the only Blu-ray title that you will get sub channel clipping issue from; there are many many more titles...movies and music too. ...Any BR movie titles and music recordings (SACD multichannel, etc.) with prominent bass would do.
Best of luck.